Alaska Geochemical Database (AGDB) - Geochemical Data for Rock, Sediment, Soil, Mineral, and Concentrate Sample Media

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What does this data set describe?

Title:
Alaska Geochemical Database (AGDB) - Geochemical Data for Rock, Sediment, Soil, Mineral, and Concentrate Sample Media
Abstract:
The Alaska Geochemical Database (AGDB) was created and designed to compile and integrate geochemical data from Alaska in order to facilitate geologic mapping, petrologic studies, mineral resource assessments, definition of geochemical baseline values and statistics, environmental impact assessments, and studies in medical geology. This Microsoft Access database serves as a data archive in support of present and future Alaskan geologic and geochemical projects, and contains data tables describing historical and new quantitative and qualitative geochemical analyses. The analytical results were determined by 85 laboratory and field analytical methods on 264,095 rock, sediment, soil, mineral and heavy-mineral concentrate samples. Most samples were collected by U.S. Geological Survey (USGS) personnel and analyzed in USGS laboratories or, under contracts, in commercial analytical laboratories. These data represent analyses of samples collected as part of various USGS programs and projects from 1962 to 2009. In addition, mineralogical data from 18,138 nonmagnetic heavy mineral concentrate samples are included in this database. The AGDB includes historical geochemical data originally archived in the USGS Rock Analysis Storage System (RASS) database, used from the mid-1960s through the late 1980s and the USGS PLUTO database used from the mid-1970s through the mid-1990s. All of these data are currently maintained in the Oracle-based National Geochemical Database (NGDB). Retrievals from the NGDB were used to generate most of the AGDB data set. These data were checked for accuracy regarding sample location, sample media type, and analytical methods used. This arduous process of reviewing, verifying and, where necessary, editing all USGS geochemical data resulted in a significantly improved Alaska geochemical dataset. USGS data that were not previously in the NGDB because the data predate the earliest USGS geochemical databases, or were once excluded for programmatic reasons, are included here in the AGDB and will be added to the NGDB. The AGDB data provided here are the most accurate and complete to date, and should be useful for a wide variety of geochemical studies. The AGDB data provided in the linked database may be updated or changed periodically. The data on the DVD and in the data downloads provided with this report are current as of date of publication.
Supplemental_Information:
Tabular datafiles included in this dataset are: AGDB.mdb and AGDB_Chem.mdb, or AGDB.accdb and AGDB_Chem.accdb.
  1. How might this data set be cited?
    Granitto, Matthew, Bailey, Elizabeth A., Schmidt, Jeanine M., Shew, Nora B., Gamble, Bruce M., and Labay, Keith A., 2011, Alaska Geochemical Database (AGDB) - Geochemical Data for Rock, Sediment, Soil, Mineral, and Concentrate Sample Media: U.S. Geological Survey Data Series 637, U.S. Geological Survey, Denver, CO.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: 179.6546
    East_Bounding_Coordinate: -129.9939
    North_Bounding_Coordinate: 71.6000
    South_Bounding_Coordinate: 50.1834
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 1962
    Ending_Date: 2010
    Currentness_Reference:
    sample collection and analysis period
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: tabular data
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a point data set. It contains the following vector data types (SDTS terminology):
      • point (264095)
    2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.0002. Longitudes are given to the nearest 0.0002. Latitude and longitude values are specified in decimal degrees. The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.98.
  7. How does the data set describe geographic features?
    methods
    Analytic methods used to obtain chemical and physical data.
    analytic_method
    Analytic method.

    Unique short name of analytic method. Textual values of no more than 12 characters.
    analytic_method_desc
    Description.

    Full description of analytic method. Textual values of no more than 211 characters.
    parent
    General method.

    General method of which this method is a specify type. Textual values of no more than 12 characters.
    digestion_method
    Digestion method.

    Digestion method used in analytic method. Textual values of no more than 25 characters.
    pub_id
    Publication ID.

    Unique ID for analytic method publication; usually USGS Library call number for reference of analytic method. Textual values of no more than 32 characters.
    bibliography
    References for analytic methods used to obtain chemical data.
    pub_id
    Publication ID.

    Unique ID for analytic method publication; usually USGS Library call number for reference of analytic method. Textual values of no more than 168 characters.
    author
    Author(s).

    Author(s) of analytic method publication. Textual values of no more than 226 characters.
    year
    Year of publication.

    Year of analytic method publication. Textual values of no more than 96 characters.
    title
    Title.

    Title of analytic method publication. Textual values of no more than 246 characters.
    series
    Series name.

    Series title of analytic method publication. Textual values of no more than 122 characters.
    issue
    Issue.

    Issue or volume of the publication series. Textual values of no more than 80 characters.
    pages
    Pages.

    Pages in analytic method publication. Textual values of no more than 70 characters.
    url
    Online linkage.

    URL of analytic method publication, if available. Textual values of no more than 76 characters.
    notes
    Notes.

    Notes regarding analytic method publication. Textual values of no more than 254 characters.
    org
    Organization link.

    Organization linked to analytic method publication. Textual values of no more than 9 characters.
    parameters
    Field name descriptions for all tables in the database.
    field_name
    Field name.

    Field name populated in one or more tables of the AGDB database. Textual values of no more than 23 characters.
    field_type
    Field type.

    Data type of field. Textual values of no more than 10 characters.
    field_size_format
    Field size and format.

    Maximum number of characters, or format of data, that can be entered in field. Textual values of no more than 12 characters.
    field_desc
    Field description.

    Description of field. Textual values of no more than 218 characters.
    field_tables
    Tables containing field.

    Table(s) containing field. Textual values of no more than 254 characters.
    element
    Chemical species.

    Chemical element or compound analyzed. Textual values of no more than 8 characters.
    units
    Units of measure.

    Analytical units of measure. Textual values of no more than 12 characters.
    method
    Analytical method.

    Abbreviation of the analytical method, matches a value of methods:analytical_method. Textual values of no more than 12 characters.
    short_desc
    Short description.

    Succinct description of the parameter, including chemical species, units, and general method. Textual values of no more than 64 characters.
    priority
    Priority.

    Rank of this method, among others for the same chemical species, in reliability and accuracy. Integer values. Int of width 4.
    main
    Spatial, geologic and descriptive attributes for samples of all types.
    lab_id
    Lab ID.

    Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample. Textual values of no more than 8 characters.
    field_id
    Field ID.

    Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry. Textual values of no more than 16 characters.
    job_id
    Job ID.

    Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 122 records have no value for job_id.
    prv_job_id
    Previous job ID.

    Original NGDB batch number (JOB_ID) of a USGS resubmitted sample that has been given a new batch number upon resubmittal for further analysis. Textual values of no more than 8 characters.
    prv_lab_id
    Previous lab ID.

    Original NGDB LAB_ID of a USGS resubmitted sample that has been given a new lab number upon resubmittal for further analysis. Textual values of no more than 11 characters.
    submitter
    Sample submitter.

    Name of the individual(s) who submitted the sample in a batch to the laboratory for analysis; not necessarily the sample collector.,. Textual values of no more than 65 characters.
    project
    Project name.

    Project name, at times derived from a project account number, of work group funded for the collection and analysis of submitted samples. Textual values of no more than 50 characters.
    date_sub
    Date submitted.

    Date sample was submitted to Sample Control for initial database processing prior to sample prep and analysis. Textual values of no more than 10 characters.
    date_coll
    Date collected.

    Date the sample was collected, when recorded. Textual values of no more than 10 characters.
    country
    Country.

    Country or marine body of water from where the sample was collected. Textual values of no more than 15 characters.
    state
    State.

    Abbreviation of state from where the sample was collected. Textual values of no more than 2 characters.
    ValueDefinition
    (no value)Information not available for this record. 587 records have no value for state.
    quad
    Map quadrangle.

    Name of 1:250,000-scale quadrangle (1?x2? or 1?x3?) in which sample was collected. Textual values of no more than 22 characters.
    ValueDefinition
    (no value)Information not available for this record. 596 records have no value for quad.
    latitude
    Geographic latitude.

    Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000. Real numbers stored in double precision.
    longitude
    Geographic longitude.

    Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000. Real numbers stored in double precision.
    spheroid
    Spheroid.

    Reference spheroid or ellipsoid, when recorded, for the latitude and longitude coordinates of the sample site. Textual values of no more than 11 characters.
    ValueDefinition
    (no value)Information not available for this record. 47176 records have no value for spheroid.
    datum
    Datum.

    Reference datum, when recorded, for the latitude and longitude coordinates of the sample site. Textual values of no more than 12 characters.
    ValueDefinition
    (no value)Information not available for this record. 47176 records have no value for datum.
    loc_desc
    Description of location.

    Geographic information relating to the location of the sample site. Textual values of no more than 246 characters.
    depth
    Sampling depth.

    Depth from the surface at which the sample was collected; units are specified by the submitter. Textual values of no more than 63 characters.
    ValueDefinition
    (no value)Information not available for this record. 47143 records have no value for depth.
    sample_src
    Sample source.

    Physical setting or environment from which the sample was collected. Textual values of no more than 38 characters.
    method_col
    Collection method.

    Sample collection method: Single grab, composite, or channel. Textual values of no more than 11 characters.
    prim_class
    Primary media type.

    Primary classification of sample media. Textual values of no more than 11 characters.
    sec_class
    Secondary media type.

    Secondary classification or subclass of sample media; attribute of PRIMARY_CLASS. Textual values of no more than 13 characters.
    spec_name
    Sample media name.

    A specific name for the sample media collected; attribute of PRIMARY_CLASS and/or SECONDARY_CLASS. Textual values of no more than 28 characters.
    comment
    Sample comment.

    Attribute used to modify PRIMARY_CLASS, SECONDARY_CLASS, or SPECIFIC_NAME; data is not derived from sample codes. Textual values of no more than 254 characters.
    addl_attr
    Additional sample attributes.

    Additional attributes used to modify PRIMARY_CLASS, SECONDARY_CLASS, or SPECIFIC_NAME; derived from sample codes in fields of original databases that do not have equivalent fields in the NGDB. Textual values of no more than 169 characters.
    ValueDefinition
    (no value)Information not available for this record. 47371 records have no value for addl_attr.
    geol_age
    Geologic age.

    Age or range of ages from the Geological Time Scale for the collected sample. Textual values of no more than 31 characters.
    stratig
    Stratigraphic unit.

    Name of the stratigraphic unit from which the sample was collected. When present, values are as given by the sample submitter and may represent either a formal name, an informal name, or geologic map unit abbreviation. Textual values of no more than 90 characters.
    mineralzn
    Mineralization type.

    An indication of mineralization or mineralization types as provided by the sample submitter. Textual values of no more than 32 characters.
    alteration
    Alteration type.

    An indication of the presence or type of alteration noted in the sample by the submitter. Textual values of no more than 20 characters.
    ValueDefinition
    (no value)Information not available for this record. 48078 records have no value for alteration.
    ign_form
    Igneous setting.

    An indication of the igneous setting from which the sample was collected. Textual values of no more than 19 characters.
    metamorph
    Metamorphic setting.

    An indication of the type of metamorphic setting from which the rock was collected. Textual values of no more than 12 characters.
    facies_grd
    Metamorphic facies or grade.

    Metamorphic facies or grade as provided by the sample submitter. Textual values of no more than 34 characters.
    src_rock
    Precursor rock.

    Used in the rock database to identify the precursor rock, igneous or sedimentary, for metamorphic rocks. Textual values of no more than 12 characters.
    dep_env
    Depositional environment.

    Original environment of deposition for sedimentary rocks. Textual values of no more than 6 characters.
    zone
    Sampled zone.

    Soil horizon from which sample was collected. Textual values of no more than 19 characters.
    horizon
    Soil horizon.

    Definition of soil sample horizon from which sample was collected. Textual values of no more than 14 characters.
    ValueDefinition
    (no value)Information not available for this record. 5332 records have no value for horizon.
    saline
    Saline nature of soil.

    Saline nature of soil from which sample was collected. Textual values of no more than 10 characters.
    ValueDefinition
    (no value)Information not available for this record. 6474 records have no value for saline.
    organics
    Organic content.

    Organic content of soil from which sample was collected. Textual values of no more than 19 characters.
    ValueDefinition
    (no value)Information not available for this record. 6239 records have no value for organics.
    ferritic
    Ferritic content.

    Ferritic nature of soil from which sample was collected. Textual values of no more than 12 characters.
    ValueDefinition
    (no value)Information not available for this record. 6470 records have no value for ferritic.
    drainage
    Soil drainage.

    Description of drainage of soil where sample collected. Textual values of no more than 14 characters.
    ValueDefinition
    (no value)Information not available for this record. 6380 records have no value for drainage.
    prep
    Sample preparation method.

    Description of the sample preparation methods used. Textual values of no more than 160 characters.
    ValueDefinition
    (no value)Information not available for this record. 6081 records have no value for prep.
    mesh_size
    Sieve size.

    Sieve size used in field sampling or laboratory preparation to fractionate the sample. Textual values of no more than 14 characters.
    chemistry
    Results of chemical analysis
    chem_id
    Row ID.

    Row identifier to facilitate editing the table. Integer values. Int of width .
    lab_id
    Lab ID.

    Unique identifier assigned to each submitted sample by the sample control officer of the analytical laboratory that received the sample. Textual values of no more than 8 characters.
    p
    Parameter.

    Analytical parameter, a value of parameters:field_name. Textual values of no more than 40 characters.
    v
    Measured value.

    Measured value resulting from the analysis. Real numbers stored in double precision.
    q
    Qualifier.

    Qualifier for the analysis, either L, indicating the measured value was below the method's detection limit for that chemical species, or G, indicating the measured value exceeded the upper detection limit of the method for that chemical species. Textual values of no more than 1 characters.
    mineralogy
    Mineralogy data for non-magnetic heavy mineral concentrate samples.
    lab_id
    Lab ID.

    Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample. Textual values of no more than 7 characters.
    ars
    Arsenopyrite.

    Arsenopyrite, presence or relative abundance, observed in concentrate sample. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 16006 records have no value for ars.
    au
    Gold.

    Gold, presence or relative abundance, observed in concentrate sample. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 16514 records have no value for au.
    bar
    Barite.

    Barite, presence or relative abundance, observed in concentrate sample. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 13152 records have no value for bar.
    cas
    Cassiterite.

    Cassiterite, presence or relative abundance, observed in concentrate sample. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 16934 records have no value for cas.
    cin
    Cinnabar.

    Cinnabar, presence or relative abundance, observed in concentrate sample. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 16834 records have no value for cin.
    cpy
    Chalcopyrite.

    Chalcopyrite, presence or relative abundance, observed in concentrate sample. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 15220 records have no value for cpy.
    flr
    Fluorite.

    Fluorite, presence or relative abundance, observed in concentrate sample. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 17663 records have no value for flr.
    gal
    Galena.

    Galena, presence or relative abundance, observed in concentrate sample. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 16658 records have no value for gal.
    mly
    Molybdenite.

    Molybdenite, presence or relative abundance, observed in concentrate sample. Textual values of no more than 7 characters.
    ValueDefinition
    (no value)Information not available for this record. 17987 records have no value for mly.
    mnz
    Monazite.

    Monazite, presence or relative abundance, observed in concentrate sample. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 17352 records have no value for mnz.
    mnz_dk
    Monazite (dark).

    Monazite, dark variety, presence or relative abundance, observed in concentrate sample. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 17827 records have no value for mnz_dk.
    mnz_yel
    Monazite (yellow).

    Monazite, yellow variety, presence or relative abundance, observed in concentrate sample. Textual values of no more than 7 characters.
    ValueDefinition
    (no value)Information not available for this record. 18069 records have no value for mnz_yel.
    pow
    Powellite.

    Powellite, presence or relative abundance, observed in concentrate sample. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 18048 records have no value for pow.
    pyr
    Pyrite.

    Pyrite, presence or relative abundance, observed in concentrate sample. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 9477 records have no value for pyr.
    sch
    Scheelite.

    Scheelite, presence or relative abundance, observed in concentrate sample. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 12128 records have no value for sch.
    sph
    Sphalerite.

    Sphalerite, presence or relative abundance, observed in concentrate sample. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 16782 records have no value for sph.
    stb
    Stibnite.

    Stibnite, presence or relative abundance, observed in concentrate sample. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 17977 records have no value for stb.
    thr
    Thorite.

    Thorite, presence or relative abundance, observed in concentrate sample. Textual values of no more than 8 characters.
    ValueDefinition
    (no value)Information not available for this record. 17986 records have no value for thr.
    norm
    No ore related minerals.

    No ore related minerals found. Textual values of no more than 4 characters.
    ValueDefinition
    (no value)Information not available for this record. 14371 records have no value for norm.
    orerelatedmnrl_comment
    Ore mineral comments.

    Comment regarding ore or gem related minerals after optical work. Textual values of no more than 209 characters.
    rockformingmnrl_comment
    Rock forming mineral comments.

    Comments regarding rock-forming minerals after optical work. Textual values of no more than 114 characters.
    optical_comment
    Optical mineralogy comments.

    General mineralogy comments after optical work. Textual values of no more than 57 characters.
    ValueDefinition
    (no value)Information not available for this record. 15066 records have no value for optical_comment.
    inferred_comment
    Mineralogy comments.

    Tripp's comments without optical work, based on chemical analyses and previous USGS map publications. Textual values of no more than 210 characters.
    ValueDefinition
    (no value)Information not available for this record. 17768 records have no value for inferred_comment.
    datadxny
    Data dictionary, explaining tables and fields
    id
    Row ID.

    Row identifier within datadxny table. Integer values. Int of width 4.
    tblorder
    Table order.

    Order in which this table should appear in some presentations. Integer values. Int of width 4.
    tblname
    Table name.

    Name of the table. Textual values of no more than 20 characters.
    number
    Field order.

    Order in which this field occurs in the RDBMS. Integer values. Int of width 4.
    label
    Field label.

    Label of the field in the RDBMS. Textual values of no more than 32 characters.
    category
    Category.

    General category of information provided by the contents of the field. Textual values of no more than 50 characters.
    short_desc
    Short description.

    Descriptive name of the field used in some presentations, not constrained by rules affecting the label. Textual values of no more than 40 characters.
    description
    Description.

    Longer description of the purpose and contents of the field. Textual values of no more than 4096 characters.
    link
    Link.

    URL providing more information about the field. Textual values of no more than 96 characters.
    origin
    Origin.

    Abbreviation of an organization, data set, or other entity responsible for defining the field. Textual values of no more than 12 characters.
    sqltype
    SQL data type.

    Data type of the field as used in the RDBMS. Textual values of no more than 8 characters.
    dbftype
    DBF field type.

    Data type of the field when expressed in DBF. Textual values of no more than 1 characters.
    width
    DBF field width.

    Field width when expressed in DBF. Integer values. Int of width 4.
    prec
    DBF field precision.

    Precision of the field (places to right of decimal) when expressed in DBF, only for numeric fields. Integer values. Int of width 4.
    units
    Units.

    Units of measure of the field values. Textual values of no more than 64 characters.
    Entity_and_Attribute_Overview:
    The AnalyticMethod table is a table of analytic methods used to obtain chemical and physical data.

    FIELD_NAME               FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    ANALYTIC_METHOD          Text         50                  Unique short name of analytic method.
    ANALYTIC_METHOD_DESC     Text         255                 Full description of analytic method.
    DIGESTION_METHOD         Text         25                  Digestion method used in analytic method.
    ANALYTIC_METHOD_PUB_ID   Text         50                  Unique ID for analytic method publication; usually USGS Library call number for reference of analytic method.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The AnalyticMethodBiblio table is a table of references for analytic methods used to obtain chemical data.

    FIELD_NAME               FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    ANALYTIC_METHOD_PUB_ID   Text         50                  Unique ID for analytic method publication; usually USGS Library call number for reference of analytic method.
    PUB_AUTHOR               Text         255                 Author(s) of analytic method publication.
    PUB_YEAR                 Number       Long Integer        Year of analytic method publication.
    PUB_TITLE                Text         255                 Title of analytic method publication.
    PUB_SERIES_TITLE         Text         150                 Series title of analytic method publication.
    PUB_PAGES                Text         100                 Pages in analytic method publication.
    PUB_URL                  Hyperlink                        URL of analytic method publication, if available.
    PUB_NOTES                Memo         65,535              Notes regarding analytic method publication.
    PUB_ORG_LINK             Text         50                  Organization linked to analytic method publication.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The Chem table is a table of all chemical data compiled for heavy mineral concentrate, mineral, rock, bulk sediment, and soil samples.

    FIELD_NAME        FIELD_TYPE   FIELD_SIZE     FIELD_DESC
    
    CHEM_ID           Number       Long Integer   Unique quantitative value identifier.
    LAB_ID            Text         8              Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample; foreign key from AGDB_Geol table.
    PARAMETER         Text         25             Chemical parameter that is a concatenation of SPECIES, UNITS, TECHNIQUE, DIGESTION, and sometimes DECOMPOSITION.
    ANALYTIC_METHOD   Text         20             Unique short name of analytic method; foreign key from AnalyticMethod table.
    QUALIFIED_VALUE   Number       Double         Numeric result; qualified so that DATA_VALUEs with associated QUALIFIERs '<', 'N' or 'L' are expressed as negative values, and DATA_VALUEs with associated QUALIFIERs '>' or 'G' end in '111'.
    DATA_VALUE        Number       Double         Numeric result.
    QUALIFIER         Text         1              Qualifying modifer for result; i.e., '<', '>'.
    SPECIES           Text         12             Chemical attribute that has a data value associated with it.
    UNITS             Text         12             Units of concentration or measurement in which the DATA_VALUE is expressed.
    TECHNIQUE         Text         5              Abbreviation of analytic method used to analyze the sample.
    DIGESTION         Text         1              Abbreviation of degree of sample digestion--total or partial--required by TECHNIQUE used to analyze the sample for a specific species.
    DECOMPOSITION     Text         45             Brief description of decomposition method used for given TECHNIQUE in the analysis of the sample, or a comment that further describes this TECHNIQUE.
    LAB_NAME          Text         25             Abbreviated name of agency or organization that performed chemical analysis.
    CHEM_COMMENT      Text         55             Comment regarding chem record.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table FieldNameDictionary is a table of field name descriptions for all tables in the database.

    FIELD_NAME          FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    FIELD_NAME          Text         35                  Field name populated in one or more tables of the AGDB database.
    FIELD_TYPE          Text         15                  Data type of field.
    FIELD_SIZE_FORMAT   Text         15                  Maximum number of characters, or format of data, that can be entered in field.
    FIELD_DESC          Text         255                 Description of field.
    FIELD_TABLES        Memo         65,535              Table(s) containing field.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table HMC_Ag_Mg is a table of chemical data - silver through magnesium - for heavy mineral concentrate samples.

    FIELD_NAME      FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID          Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID        Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID          Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE        Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE       Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Ag_ppm_AA       Number       Double              Silver, in parts per million, by flame-atomic absorption spectrophotometry.
    Ag_ppm_AA_P     Number       Double              Silver, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Ag_ppm_AES_P    Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Ag_ppm_AES_AR   Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ag_ppm_AES_HF   Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ag_ppm_ES       Number       Double              Silver, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ag_ppm_FA_AA    Number       Double              Silver, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Ag_ppm_MS_SF    Number       Double              Silver, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ag_ppm_NA       Number       Double              Silver, in parts per million, by neutron activation.
    Al_pct_AES_AR   Number       Double              Aluminum, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Al_pct_AES_HF   Number       Double              Aluminum, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Al_pct_AES_SF   Number       Double              Aluminum, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Al_pct_ES       Number       Double              Aluminum, in weight percent, by semi-quant direct-current arc emission spectrography.
    Al_pct_WDX      Number       Double              Aluminum, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    As_ppm_AA_P     Number       Double              Arsenic, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    As_ppm_AES_P    Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    As_ppm_AES_AR   Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    As_ppm_AES_HF   Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    As_ppm_CM_P     Number       Double              Arsenic, in parts per million, by colorimetry after partial digestion.
    As_ppm_ES       Number       Double              Arsenic, in parts per million, by semi-quant direct-current arc emission spectrography.
    As_ppm_MS_SF    Number       Double              Arsenic, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    As_ppm_NA       Number       Double              Arsenic, in parts per million, by neutron activation.
    Au_ppm_AA       Number       Double              Gold, in parts per million, by flame-atomic absorption spectrophotometry.
    Au_ppm_AA_GF    Number       Double              Gold, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    Au_ppm_AES_P    Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Au_ppm_AES_AR   Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Au_ppm_AES_HF   Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Au_ppm_ES       Number       Double              Gold, in parts per million, by semi-quant direct-current arc emission spectrography.
    Au_ppm_FA_AA    Number       Double              Gold, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Au_ppm_FA_DC    Number       Double              Gold, in parts per million, by fire assay and direct current plasma-atomic emission spectroscopy.
    Au_ppm_FA_ES    Number       Double              Gold, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Au_ppm_NA       Number       Double              Gold, in parts per million, by neutron activation.
    SplWtAu_g_GV    Number       Double              Sample weight for gold analysis, in grams, by gravimetry.
    B_ppm_AES_AR    Number       Double              Boron, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    B_ppm_ES        Number       Double              Boron, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ba_ppm_AES_AR   Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ba_ppm_AES_HF   Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ba_ppm_AES_SF   Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ba_ppm_ES       Number       Double              Barium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Be_ppm_AES_AR   Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Be_ppm_AES_HF   Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Be_ppm_AES_SF   Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Be_ppm_ES       Number       Double              Beryllium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Bi_ppm_AA_P     Number       Double              Bismuth, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Bi_ppm_AES_P    Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Bi_ppm_AES_AR   Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Bi_ppm_AES_HF   Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Bi_ppm_ES       Number       Double              Bismuth, in parts per million, by semi-quant direct-current arc emission spectrography.
    Bi_ppm_MS_SF    Number       Double              Bismuth, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    C_pct_CB        Number       Double              Total carbon, in weight percent, by combustion.
    Ca_pct_AES_AR   Number       Double              Calcium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ca_pct_AES_HF   Number       Double              Calcium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ca_pct_AES_SF   Number       Double              Calcium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ca_pct_ES       Number       Double              Calcium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Ca_pct_WDX      Number       Double              Calcium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Cd_ppm_AA_P     Number       Double              Cadmium, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Cd_ppm_AES_P    Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cd_ppm_AES_AR   Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cd_ppm_AES_HF   Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cd_ppm_ES       Number       Double              Cadmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cd_ppm_MS_SF    Number       Double              Cadmium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ce_ppm_AES_AR   Number       Double              Cerium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ce_ppm_AES_HF   Number       Double              Cerium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ce_ppm_ES       Number       Double              Cerium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ce_ppm_MS_SF    Number       Double              Cerium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Co_ppm_AA_P     Number       Double              Cobalt, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Co_ppm_AES_AR   Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Co_ppm_AES_HF   Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Co_ppm_ES       Number       Double              Cobalt, in parts per million, by semi-quant direct-current arc emission spectrography.
    Co_ppm_MS_SF    Number       Double              Cobalt, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Co_ppm_NA       Number       Double              Cobalt, in parts per million, by neutron activation.
    Cr_ppm_AES_AR   Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cr_ppm_AES_HF   Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cr_ppm_AES_SF   Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Cr_ppm_ES       Number       Double              Chromium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cr_ppm_NA       Number       Double              Chromium, in parts per million, by neutron activation.
    Cs_ppm_MS_SF    Number       Double              Cesium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Cu_ppm_AA_P     Number       Double              Copper, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Cu_ppm_AES_P    Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cu_ppm_AES_AR   Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cu_ppm_AES_HF   Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cu_ppm_AES_SF   Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Cu_ppm_ES       Number       Double              Copper, in parts per million, by semi-quant direct-current arc emission spectrography.
    Dy_ppm_ES       Number       Double              Dysprosium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Dy_ppm_MS_SF    Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Er_ppm_ES       Number       Double              Erbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Er_ppm_MS_SF    Number       Double              Erbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Eu_ppm_AES_HF   Number       Double              Europium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Eu_ppm_ES       Number       Double              Europium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Eu_ppm_MS_SF    Number       Double              Europium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    F_pct_CM        Number       Double              Fluorine, in weight percent, by colorimetry.
    Fe_pct_AES_AR   Number       Double              Iron, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Fe_pct_AES_HF   Number       Double              Iron, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Fe_pct_AES_SF   Number       Double              Iron, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Fe_pct_ES       Number       Double              Iron, in weight percent, by semi-quant direct-current arc emission spectrography.
    Fe_pct_WDX      Number       Double              Iron, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ga_ppm_AES_HF   Number       Double              Gallium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ga_ppm_ES       Number       Double              Gallium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ga_ppm_MS_SF    Number       Double              Gallium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Gd_ppm_ES       Number       Double              Gadolinium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Gd_ppm_MS_SF    Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ge_ppm_ES       Number       Double              Germanium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ge_ppm_MS_SF    Number       Double              Germanium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Hf_ppm_ES       Number       Double              Hafnium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Hf_ppm_MS_SF    Number       Double              Hafnium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Hg_ppm_AA_CV    Number       Double              Mercury, in parts per million, by cold vapor-atomic absorption spectrophotometry.
    Hg_ppm_AA_TR    Number       Double              Mercury, in parts per million, by thermal release-atomic absorption spectrophotometry.
    Hg_ppm_ES       Number       Double              Mercury, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ho_ppm_AES_HF   Number       Double              Holmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ho_ppm_ES       Number       Double              Holmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ho_ppm_MS_SF    Number       Double              Holmium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    In_ppm_AA       Number       Double              Indium, in parts per million, by flame-atomic absorption spectrophotometry.
    In_ppm_ES       Number       Double              Indium, in parts per million, by semi-quant direct-current arc emission spectrography.
    In_ppm_MS_SF    Number       Double              Indium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ir_ppm_ES       Number       Double              Iridium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ir_ppm_FA_ES    Number       Double              Iridium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Ir_ppm_FA_MS    Number       Double              Iridium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    K_pct_AES_AR    Number       Double              Potassium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    K_pct_AES_HF    Number       Double              Potassium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    K_pct_AES_SF    Number       Double              Potassium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    K_pct_ES        Number       Double              Potassium, in weight percent, by semi-quant direct-current arc emission spectrography.
    K_pct_WDX       Number       Double              Potassium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    La_ppm_AES_AR   Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    La_ppm_AES_HF   Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    La_ppm_ES       Number       Double              Lanthanum, in parts per million, by semi-quant direct-current arc emission spectrography.
    La_ppm_MS_SF    Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Li_ppm_AES_AR   Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Li_ppm_AES_HF   Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Li_ppm_AES_SF   Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Li_ppm_ES       Number       Double              Lithium, in parts per million, by semi-quant direct-current arc emission spectrography.
    LOI_pct_GV      Number       Double              Loss on ignition, in weight percent, by gravimetry.
    Lu_ppm_ES       Number       Double              Lutetium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Lu_ppm_MS_SF    Number       Double              Lutetium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Mg_pct_AES_AR   Number       Double              Magnesium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Mg_pct_AES_HF   Number       Double              Magnesium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mg_pct_AES_SF   Number       Double              Magnesium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Mg_pct_ES       Number       Double              Magnesium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Mg_pct_WDX      Number       Double              Magnesium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table HMC_Geol is a table of spatial, geologic and descriptive attributes for heavy mineral concentrate samples.

    FIELD_NAME         FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID             Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID           Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID             Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    SUBMITTER          Text         75                  Name of the individual(s) who submitted the sample in a batch to the laboratory for analysis; not necessarily the sample collector.,
    PROJECT_NAME       Text         50                  Project name, at times derived from a project account number, of work group funded for the collection and analysis of submitted samples.
    DATE_SUBMITTED     Date/Time    n/a                 Date sample was submitted to Sample Control for initial database processing prior to sample prep and analysis.
    DATE_COLLECT       Date/Time    n/a                 Date the sample was collected, when recorded.
    COUNTRY            Text         20                  Country or marine body of water from where the sample was collected.
    STATE              Text         2                   Abbreviation of state from where the sample was collected.
    QUAD               Text         25                  Name of 1:250,000-scale quadrangle (1°x2° or 1°x3°) in which sample was collected.
    LATITUDE           Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE          Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    SPHEROID           Text         25                  Reference spheroid or ellipsoid, when recorded, for the latitude and longitude coordinates of the sample site.
    DATUM              Text         50                  Reference datum, when recorded, for the latitude and longitude coordinates of the sample site.
    LOCATE_DESC        Text         255                 Geographic information relating to the location of the sample site.
    DEPTH              Text         65                  Depth from the surface at which the sample was collected; units are specified by the submitter.
    SAMPLE_SOURCE      Text         40                  Physical setting or environment from which the sample was collected.
    METHOD_COLLECTED   Text         15                  Sample collection method: Single grab, composite, or channel.
    PRIMARY_CLASS      Text         30                  Primary classification of sample media.
    SECONDARY_CLASS    Text         15                  Secondary classification or subclass of sample media; attribute of PRIMARY_CLASS.
    SPECIFIC_NAME      Text         30                  A specific name for the sample media collected; attribute of PRIMARY_CLASS and/or SECONDARY_CLASS.
    SAMPLE_COMMENT     Text         255                 Attribute used to modify PRIMARY_CLASS, SECONDARY_CLASS, or SPECIFIC_NAME; data is not derived from sample codes.
    ADDL_ATTR          Text         255                 Additional attributes used to modify PRIMARY_CLASS, SECONDARY_CLASS, or SPECIFIC_NAME; derived from sample codes in fields of original databases that do not have equivalent fields in the NGDB.
    GEOLOGIC_AGE       Text         60                  Age or range of ages from the Geological Time Scale for the collected sample.
    STRATIGRAPHY       Text         255                 Name of the stratigraphic unit from which the sample was collected. When present, values are as given by the sample submitter and may represent either a formal name, an informal name, or geologic map unit abbreviation.
    MINERALIZATION     Text         35                  An indication of mineralization or mineralization types as provided by the sample submitter.
    ALTERATION         Text         50                  An indication of the presence or type of alteration noted in the sample by the submitter.
    IGNEOUS_FORM       Text         25                  An indication of the igneous setting from which the sample was collected.
    SOURCE_ROCK        Text         12                  Used in the rock database to identify the precursor rock, igneous or sedimentary, for metamorphic rocks.
    PREP               Text         255                 Description of the sample preparation methods used.
    MESH_PORE_SIZE     Text         60                  Sieve size used in field sampling or laboratory preparation to fractionate the sample.
    PREVIOUS_JOB_ID    Text         20                  Original NGDB batch number (JOB_ID) of a USGS resubmitted sample that has been given a new batch number upon resubmittal for further analysis.
    PREVIOUS_LAB_ID    Text         20                  Original NGDB LAB_ID of a USGS resubmitted sample that has been given a new lab number upon resubmittal for further analysis.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table HMC_Mn_Zr is a table of chemical data - manganese through zirconium - for heavy mineral concentrate samples.

    FIELD_NAME      FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    FIELD_ID        Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID          Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LAB_ID          Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    LATITUDE        Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE       Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Mn_pct_AES_AR   Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Mn_pct_AES_HF   Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mn_pct_AES_SF   Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Mn_pct_ES       Number       Double              Manganese, in weight percent, by semi-quant direct-current arc emission spectrography.
    Mn_pct_WDX      Number       Double              Manganese, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Mo_ppm_AA_P     Number       Double              Molybdenum, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Mo_ppm_AES_P    Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Mo_ppm_AES_AR   Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Mo_ppm_AES_HF   Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mo_ppm_CM       Number       Double              Molybdenum, in parts per million, by colorimetry.
    Mo_ppm_ES       Number       Double              Molybdenum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Mo_ppm_MS_SF    Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Mo_ppm_NA       Number       Double              Molybdenum, in parts per million, by neutron activation.
    Na_pct_AES_AR   Number       Double              Sodium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Na_pct_AES_HF   Number       Double              Sodium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Na_pct_ES       Number       Double              Sodium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Na_pct_WDX      Number       Double              Sodium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Nb_ppm_AES_AR   Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Nb_ppm_AES_HF   Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Nb_ppm_ES       Number       Double              Niobium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Nb_ppm_MS_SF    Number       Double              Niobium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Nd_ppm_AES_HF   Number       Double              Neodymium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Nd_ppm_ES       Number       Double              Neodymium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Nd_ppm_MS_SF    Number       Double              Neodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ni_ppm_AA_P     Number       Double              Nickel, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Ni_ppm_AES_AR   Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ni_ppm_AES_HF   Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ni_ppm_AES_SF   Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ni_ppm_ES       Number       Double              Nickel, in parts per million, by semi-quant direct-current arc emission spectrography.
    Os_ppm_ES       Number       Double              Osmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Os_ppm_FA_ES    Number       Double              Osmium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    P_pct_AES_AR    Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    P_pct_AES_HF    Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    P_pct_AES_SF    Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    P_pct_ES        Number       Double              Phosphorus, in weight percent, by semi-quant direct-current arc emission spectrography.
    P_pct_WDX       Number       Double              Phosphorus, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Pb_ppm_AA_P     Number       Double              Lead, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Pb_ppm_AES_P    Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Pb_ppm_AES_AR   Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Pb_ppm_AES_HF   Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Pb_ppm_ES       Number       Double              Lead, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pb_ppm_MS_SF    Number       Double              Lead, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Pd_ppm_ES       Number       Double              Palladium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pd_ppm_FA_AA    Number       Double              Palladium, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Pd_ppm_FA_ES    Number       Double              Palladium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Pd_ppm_FA_MS    Number       Double              Palladium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Pr_ppm_ES       Number       Double              Praseodymium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pr_ppm_MS_SF    Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Pt_ppm_ES       Number       Double              Platinum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pt_ppm_FA_AA    Number       Double              Platinum, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Pt_ppm_FA_ES    Number       Double              Platinum, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Pt_ppm_FA_MS    Number       Double              Platinum, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Rb_ppm_MS_SF    Number       Double              Rubidium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Re_ppm_ES       Number       Double              Rhenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Rh_ppm_ES       Number       Double              Rhodium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Rh_ppm_FA_AA    Number       Double              Rhodium, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Rh_ppm_FA_ES    Number       Double              Rhodium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Rh_ppm_FA_MS    Number       Double              Rhodium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Ru_ppm_ES       Number       Double              Ruthenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ru_ppm_FA_ES    Number       Double              Ruthenium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Ru_ppm_FA_MS    Number       Double              Ruthenium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    S_pct_CB        Number       Double              Total sulfur, in weight percent, by combustion.
    Sb_ppm_AA_P     Number       Double              Antimony, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Sb_ppm_AES_P    Number       Double              Antimony, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Sb_ppm_AES_AR   Number       Double              Antimony, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sb_ppm_CM_P     Number       Double              Antimony, in parts per million, by colorimetry after partial digestion.
    Sb_ppm_ES       Number       Double              Antimony, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sb_ppm_MS_SF    Number       Double              Antimony, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sb_ppm_NA       Number       Double              Antimony, in parts per million, by neutron activation.
    Sc_ppm_AES_HF   Number       Double              Scandium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sc_ppm_ES       Number       Double              Scandium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sc_ppm_MS_SF    Number       Double              Scandium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Si_pct_ES       Number       Double              Silicon, in weight percent, by semi-quant direct-current arc emission spectrography.
    Si_pct_WDX      Number       Double              Silicon, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Sm_ppm_ES       Number       Double              Samarium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sm_ppm_MS_SF    Number       Double              Samarium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sn_ppm_AES_AR   Number       Double              Tin, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sn_ppm_AES_HF   Number       Double              Tin, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sn_ppm_ES       Number       Double              Tin, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sn_ppm_MS_SF    Number       Double              Tin, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    SplWtFA_g_GV    Number       Double              Sample weight for fire assay analysis, in grams, by gravimetry.
    Sr_ppm_AES_AR   Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sr_ppm_AES_HF   Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sr_ppm_AES_SF   Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Sr_ppm_ES       Number       Double              Strontium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ta_ppm_AES_HF   Number       Double              Tantalum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ta_ppm_ES       Number       Double              Tantalum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ta_ppm_MS_SF    Number       Double              Tantalum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tb_ppm_ES       Number       Double              Terbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tb_ppm_MS_SF    Number       Double              Terbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Te_ppm_AA       Number       Double              Tellurium, in parts per million, by flame-atomic absorption spectrophotometry.
    Te_ppm_ES       Number       Double              Tellurium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Th_ppm_AES_HF   Number       Double              Thorium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Th_ppm_ES       Number       Double              Thorium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Th_ppm_MS_SF    Number       Double              Thorium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ti_pct_AES_AR   Number       Double              Titanium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ti_pct_AES_HF   Number       Double              Titanium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ti_pct_AES_SF   Number       Double              Titanium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ti_pct_ES       Number       Double              Titanium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Ti_pct_WDX      Number       Double              Titanium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Tl_ppm_AA       Number       Double              Thallium, in parts per million, by flame-atomic absorption spectrophotometry.
    Tl_ppm_ES       Number       Double              Thallium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tl_ppm_MS_SF    Number       Double              Thallium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tm_ppm_ES       Number       Double              Thulium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tm_ppm_MS_SF    Number       Double              Thulium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    U_ppm_AES_HF    Number       Double              Uranium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    U_ppm_ES        Number       Double              Uranium, in parts per million, by semi-quant direct-current arc emission spectrography.
    U_ppm_MS_SF     Number       Double              Uranium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ueq_ppm_GRC     Number       Double              Uranium, equivalents in parts per million, gamma ray counting.
    V_ppm_AES_AR    Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    V_ppm_AES_HF    Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    V_ppm_AES_SF    Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    V_ppm_ES        Number       Double              Vanadium, in parts per million, by semi-quant direct-current arc emission spectrography.
    W_ppm_AES_AR    Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    W_ppm_CM_P      Number       Double              Tungsten, in parts per million, by colorimetry after partial digestion.
    W_ppm_ES        Number       Double              Tungsten, in parts per million, by semi-quant direct-current arc emission spectrography.
    W_ppm_MS_SF     Number       Double              Tungsten, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    W_ppm_NA        Number       Double              Tungsten, in parts per million, by neutron activation.
    Y_ppm_AES_AR    Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Y_ppm_AES_HF    Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Y_ppm_ES        Number       Double              Yttrium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Y_ppm_MS_SF     Number       Double              Yttrium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Yb_ppm_AES_HF   Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Yb_ppm_ES       Number       Double              Ytterbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Yb_ppm_MS_SF    Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Zn_ppm_AA_P     Number       Double              Zinc, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Zn_ppm_AES_P    Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Zn_ppm_AES_AR   Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Zn_ppm_AES_HF   Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Zn_ppm_AES_SF   Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Zn_ppm_CM_P     Number       Double              Zinc, in parts per million, by colorimetry after partial digestion.
    Zn_ppm_ES       Number       Double              Zinc, in parts per million, by semi-quant direct-current arc emission spectrography.
    Zr_ppm_AES_AR   Number       Double              Zirconium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Zr_ppm_AES_SF   Number       Double              Zirconium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Zr_ppm_ES       Number       Double              Zirconium, in parts per million, by semi-quant direct-current arc emission spectrography.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Mnrl_Ag_Ga is a table of chemical data - silver through gallium - for mineral samples.

    FIELD_NAME      FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID          Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID        Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID          Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE        Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE       Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Ag_ppm_AA       Number       Double              Silver, in parts per million, by flame-atomic absorption spectrophotometry.
    Ag_ppm_AA_P     Number       Double              Silver, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Ag_ppm_AES_P    Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Ag_ppm_AES_HF   Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ag_ppm_ES       Number       Double              Silver, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ag_ppm_ES_Q     Number       Double              Silver, in parts per million, by quant direct-current arc emission spectrography.
    Ag_ppm_FA_AA    Number       Double              Silver, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Ag_ppm_MS_HF    Number       Double              Silver, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ag_ppm_MS_SF    Number       Double              Silver, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Al_pct_AES_HF   Number       Double              Aluminum, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Al_pct_AES_SF   Number       Double              Aluminum, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Al_pct_CM       Number       Double              Aluminum, in weight percent, by colorimetry.
    Al_pct_ES       Number       Double              Aluminum, in weight percent, by semi-quant direct-current arc emission spectrography.
    Al_pct_ES_Q     Number       Double              Aluminum, in weight percent, by quant direct-current arc emission spectrography.
    Al_pct_GV       Number       Double              Aluminum, in weight percent, by gravimetry.
    Al_pct_MS_HF    Number       Double              Aluminum, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Al_pct_WDX      Number       Double              Aluminum, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    As_ppm_AA_P     Number       Double              Arsenic, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    As_ppm_AES_P    Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    As_ppm_AES_HF   Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    As_ppm_CM_P     Number       Double              Arsenic, in parts per million, by colorimetry after partial digestion.
    As_ppm_ES       Number       Double              Arsenic, in parts per million, by semi-quant direct-current arc emission spectrography.
    As_ppm_ES_Q     Number       Double              Arsenic, in parts per million, by quant direct-current arc emission spectrography.
    As_ppm_MS_HF    Number       Double              Arsenic, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    As_ppm_MS_SF    Number       Double              Arsenic, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Au_ppm_AA       Number       Double              Gold, in parts per million, by flame-atomic absorption spectrophotometry.
    Au_ppm_AES_P    Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Au_ppm_AES_HF   Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Au_ppm_ES       Number       Double              Gold, in parts per million, by semi-quant direct-current arc emission spectrography.
    Au_ppm_FA_AA    Number       Double              Gold, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Au_ppm_FA_DC    Number       Double              Gold, in parts per million, by fire assay and direct current plasma-atomic emission spectroscopy.
    SplWtAu_g_GV    Number       Double              Sample weight for gold analysis, in grams, by gravimetry.
    B_ppm_AA        Number       Double              Boron, in parts per million, by flame-atomic absorption spectrophotometry.
    B_ppm_ES        Number       Double              Boron, in parts per million, by semi-quant direct-current arc emission spectrography.
    B_ppm_ES_Q      Number       Double              Boron, in parts per million, by quant direct-current arc emission spectrography.
    Ba_ppm_AES_HF   Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ba_ppm_AES_SF   Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ba_ppm_ES       Number       Double              Barium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ba_ppm_ES_Q     Number       Double              Barium, in parts per million, by quant direct-current arc emission spectrography.
    Ba_ppm_MS_HF    Number       Double              Barium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ba_ppm_NA       Number       Double              Barium, in parts per million, by neutron activation.
    Ba_ppm_WDX      Number       Double              Barium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Be_ppm_AES_HF   Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Be_ppm_AES_SF   Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Be_ppm_ES       Number       Double              Beryllium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Be_ppm_ES_Q     Number       Double              Beryllium, in parts per million, by quant direct-current arc emission spectrography.
    Be_ppm_MS_HF    Number       Double              Beryllium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Bi_ppm_AA_P     Number       Double              Bismuth, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Bi_ppm_AES_P    Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Bi_ppm_AES_HF   Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Bi_ppm_ES       Number       Double              Bismuth, in parts per million, by semi-quant direct-current arc emission spectrography.
    Bi_ppm_MS_HF    Number       Double              Bismuth, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Bi_ppm_MS_SF    Number       Double              Bismuth, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    C_pct_CB        Number       Double              Total carbon, in weight percent, by combustion.
    CO2_pct_TT      Number       Double              Carbon dioxide, in weight percent, by titration.
    CO2_pct_VOL     Number       Double              Carbon dioxide, in weight percent, by a volumetric method.
    CCO3_pct_VOL    Number       Double              Carbonate carbon, in weight percent, by a volumetric method.
    COrg_pct_CP     Number       Double              Organic carbon, in weight percent, by computation.
    Ca_pct_AA       Number       Double              Calcium, in weight percent, by flame-atomic absorption spectrophotometry.
    Ca_pct_AES_HF   Number       Double              Calcium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ca_pct_AES_SF   Number       Double              Calcium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ca_pct_ES       Number       Double              Calcium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Ca_pct_ES_Q     Number       Double              Calcium, in weight percent, by quant direct-current arc emission spectrography.
    Ca_pct_GV       Number       Double              Calcium, in weight percent, by gravimetry.
    Ca_pct_MS_HF    Number       Double              Calcium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ca_pct_WDX      Number       Double              Calcium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Cd_ppm_AA_P     Number       Double              Cadmium, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Cd_ppm_AES_P    Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cd_ppm_AES_HF   Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cd_ppm_ES       Number       Double              Cadmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cd_ppm_ES_Q     Number       Double              Cadmium, in parts per million, by quant direct-current arc emission spectrography.
    Cd_ppm_MS_HF    Number       Double              Cadmium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cd_ppm_MS_SF    Number       Double              Cadmium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ce_ppm_AES_HF   Number       Double              Cerium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ce_ppm_ES       Number       Double              Cerium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ce_ppm_ES_Q     Number       Double              Cerium, in parts per million, by quant direct-current arc emission spectrography.
    Ce_ppm_MS_HF    Number       Double              Cerium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ce_ppm_MS_SF    Number       Double              Cerium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ce_ppm_NA       Number       Double              Cerium, in parts per million, by neutron activation.
    Ce_ppm_WDX      Number       Double              Cerium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Co_ppm_AES_HF   Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Co_ppm_ES       Number       Double              Cobalt, in parts per million, by semi-quant direct-current arc emission spectrography.
    Co_ppm_ES_Q     Number       Double              Cobalt, in parts per million, by quant direct-current arc emission spectrography.
    Co_ppm_MS_HF    Number       Double              Cobalt, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Co_ppm_MS_SF    Number       Double              Cobalt, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Co_ppm_NA       Number       Double              Cobalt, in parts per million, by neutron activation.
    Cr_ppm_AA       Number       Double              Chromium, in parts per million, by flame-atomic absorption spectrophotometry.
    Cr_ppm_AES_HF   Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cr_ppm_AES_SF   Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Cr_ppm_EDX      Number       Double              Chromium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Cr_ppm_ES       Number       Double              Chromium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cr_ppm_ES_Q     Number       Double              Chromium, in parts per million, by quant direct-current arc emission spectrography.
    Cr_ppm_MS_HF    Number       Double              Chromium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cr_ppm_NA       Number       Double              Chromium, in parts per million, by neutron activation.
    Cr_ppm_WDX      Number       Double              Chromium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Cs_ppm_MS_HF    Number       Double              Cesium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cs_ppm_MS_SF    Number       Double              Cesium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Cs_ppm_NA       Number       Double              Cesium, in parts per million, by neutron activation.
    Cu_ppm_AA       Number       Double              Copper, in parts per million, by flame-atomic absorption spectrophotometry.
    Cu_ppm_AA_P     Number       Double              Copper, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Cu_ppm_AES_P    Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cu_ppm_AES_HF   Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cu_ppm_AES_SF   Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Cu_ppm_EDX      Number       Double              Copper, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Cu_ppm_ES       Number       Double              Copper, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cu_ppm_ES_Q     Number       Double              Copper, in parts per million, by quant direct-current arc emission spectrography.
    Cu_ppm_MS_HF    Number       Double              Copper, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Dy_ppm_ES       Number       Double              Dysprosium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Dy_ppm_ES_Q     Number       Double              Dysprosium, in parts per million, by quant direct-current arc emission spectrography.
    Dy_ppm_GV       Number       Double              Dysprosium, in parts per million, by gravimetry.
    Dy_ppm_MS_HF    Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Dy_ppm_MS_SF    Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Dy_ppm_NA       Number       Double              Dysprosium, in parts per million, by neutron activation.
    Dy_ppm_WDX      Number       Double              Dysprosium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Er_ppm_ES       Number       Double              Erbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Er_ppm_ES_Q     Number       Double              Erbium, in parts per million, by quant direct-current arc emission spectrography.
    Er_ppm_GV       Number       Double              Erbium, in parts per million, by gravimetry.
    Er_ppm_MS_HF    Number       Double              Erbium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Er_ppm_MS_SF    Number       Double              Erbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Er_ppm_WDX      Number       Double              Erbium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Eu_ppm_AES_HF   Number       Double              Europium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Eu_ppm_ES       Number       Double              Europium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Eu_ppm_ES_Q     Number       Double              Europium, in parts per million, by quant direct-current arc emission spectrography.
    Eu_ppm_GV       Number       Double              Europium, in parts per million, by gravimetry.
    Eu_ppm_MS_HF    Number       Double              Europium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Eu_ppm_MS_SF    Number       Double              Europium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Eu_ppm_NA       Number       Double              Europium, in parts per million, by neutron activation.
    Eu_ppm_WDX      Number       Double              Europium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    F_pct_CM        Number       Double              Fluorine, in weight percent, by colorimetry.
    F_pct_ISE       Number       Double              Fluorine, in weight percent, by ion specific electrode.
    Fe2_pct_TT      Number       Double              Ferrous iron, in weight percent, by titration.
    Fe_pct_AES_HF   Number       Double              Iron, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Fe_pct_AES_SF   Number       Double              Iron, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Fe_pct_CM       Number       Double              Iron, in weight percent, by colorimetry.
    Fe_pct_ES       Number       Double              Iron, in weight percent, by semi-quant direct-current arc emission spectrography.
    Fe_pct_ES_Q     Number       Double              Iron, in weight percent, by quant direct-current arc emission spectrography.
    Fe_pct_MS_HF    Number       Double              Iron, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Fe_pct_NA       Number       Double              Iron, in weight percent, by neutron activation.
    Fe_pct_WDX      Number       Double              Iron, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ga_ppm_AES_HF   Number       Double              Gallium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ga_ppm_ES       Number       Double              Gallium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ga_ppm_ES_Q     Number       Double              Gallium, in parts per million, by quant direct-current arc emission spectrography.
    Ga_ppm_MS_HF    Number       Double              Gallium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ga_ppm_MS_SF    Number       Double              Gallium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Mnrl_Gd_Pt is a table of chemical data - gadolinium through platinum - for mineral samples.

    FIELD_NAME      FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID          Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID        Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID          Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE        Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE       Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Gd_ppm_ES       Number       Double              Gadolinium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Gd_ppm_ES_Q     Number       Double              Gadolinium, in parts per million, by quant direct-current arc emission spectrography.
    Gd_ppm_GV       Number       Double              Gadolinium, in parts per million, by gravimetry.
    Gd_ppm_MS_HF    Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Gd_ppm_MS_SF    Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Gd_ppm_NA       Number       Double              Gadolinium, in parts per million, by neutron activation.
    Gd_ppm_WDX      Number       Double              Gadolinium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ge_ppm_AA       Number       Double              Germanium, in parts per million, by flame-atomic absorption spectrophotometry.
    Ge_ppm_ES       Number       Double              Germanium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ge_ppm_MS_HF    Number       Double              Germanium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ge_ppm_MS_SF    Number       Double              Germanium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    H2O_pct_GV      Number       Double              Total water, in weight percent, by gravimetry.
    H2Om_pct_GV     Number       Double              Moisture, in weight percent, by gravimetry.
    H2Ob_pct_GV     Number       Double              Bound water, in weight percent, by gravimetry.
    H2Ob_pct_TT     Number       Double              Bound water, in weight percent, by titration.
    Hf_ppm_ES       Number       Double              Hafnium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Hf_ppm_MS_SF    Number       Double              Hafnium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Hf_ppm_NA       Number       Double              Hafnium, in parts per million, by neutron activation.
    Hg_ppm_AA_CV    Number       Double              Mercury, in parts per million, by cold vapor-atomic absorption spectrophotometry.
    Hg_ppm_AA_TR    Number       Double              Mercury, in parts per million, by thermal release-atomic absorption spectrophotometry.
    Hg_ppm_ES       Number       Double              Mercury, in parts per million, by semi-quant direct-current arc emission spectrography.
    Hg_ppm_ES_Q     Number       Double              Mercury, in parts per million, by quant direct-current arc emission spectrography.
    Ho_ppm_AES_HF   Number       Double              Holmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ho_ppm_ES       Number       Double              Holmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ho_ppm_ES_Q     Number       Double              Holmium, in parts per million, by quant direct-current arc emission spectrography.
    Ho_ppm_GV       Number       Double              Holmium, in parts per million, by gravimetry.
    Ho_ppm_MS_HF    Number       Double              Holmium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ho_ppm_MS_SF    Number       Double              Holmium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ho_ppm_NA       Number       Double              Holmium, in parts per million, by neutron activation.
    Ho_ppm_WDX      Number       Double              Holmium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    In_ppm_ES       Number       Double              Indium, in parts per million, by semi-quant direct-current arc emission spectrography.
    In_ppm_MS_HF    Number       Double              Indium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    In_ppm_MS_SF    Number       Double              Indium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ir_ppm_ES       Number       Double              Iridium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ir_ppm_FA_MS    Number       Double              Iridium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    K_pct_AA        Number       Double              Potassium, in weight percent, by flame-atomic absorption spectrophotometry.
    K_pct_AA_FE     Number       Double              Potassium, in weight percent, by flame emission spectrophotometry.
    K_pct_AES_HF    Number       Double              Potassium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    K_pct_AES_SF    Number       Double              Potassium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    K_pct_ES        Number       Double              Potassium, in weight percent, by semi-quant direct-current arc emission spectrography.
    K_pct_ES_Q      Number       Double              Potassium, in weight percent, by quant direct-current arc emission spectrography.
    K_pct_MS_HF     Number       Double              Potassium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    K_pct_NA        Number       Double              Potassium, in weight percent, by neutron activation.
    K_pct_WDX       Number       Double              Potassium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    La_ppm_AES_HF   Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    La_ppm_ES       Number       Double              Lanthanum, in parts per million, by semi-quant direct-current arc emission spectrography.
    La_ppm_ES_Q     Number       Double              Lanthanum, in parts per million, by quant direct-current arc emission spectrography.
    La_ppm_GV       Number       Double              Lanthanum, in parts per million, by gravimetry.
    La_ppm_MS_HF    Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    La_ppm_MS_SF    Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    La_ppm_NA       Number       Double              Lanthanum, in parts per million, by neutron activation.
    La_ppm_WDX      Number       Double              Lanthanum, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Li_ppm_AES_HF   Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Li_ppm_AES_SF   Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Li_ppm_ES       Number       Double              Lithium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Li_ppm_ES_Q     Number       Double              Lithium, in parts per million, by quant direct-current arc emission spectrography.
    Li_ppm_MS_HF    Number       Double              Lithium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    LOI_pct_GV      Number       Double              Loss on ignition, in weight percent, by gravimetry.
    Lu_ppm_ES       Number       Double              Lutetium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Lu_ppm_ES_Q     Number       Double              Lutetium, in parts per million, by quant direct-current arc emission spectrography.
    Lu_ppm_GV       Number       Double              Lutetium, in parts per million, by gravimetry.
    Lu_ppm_MS_SF    Number       Double              Lutetium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Lu_ppm_NA       Number       Double              Lutetium, in parts per million, by neutron activation.
    Lu_ppm_WDX      Number       Double              Lutetium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Mg_pct_AA       Number       Double              Magnesium, in weight percent, by flame-atomic absorption spectrophotometry.
    Mg_pct_AES_HF   Number       Double              Magnesium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mg_pct_AES_SF   Number       Double              Magnesium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Mg_pct_ES       Number       Double              Magnesium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Mg_pct_ES_Q     Number       Double              Magnesium, in weight percent, by quant direct-current arc emission spectrography.
    Mg_pct_MS_HF    Number       Double              Magnesium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Mg_pct_WDX      Number       Double              Magnesium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Mn_pct_AES_HF   Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mn_pct_AES_SF   Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Mn_pct_CM       Number       Double              Manganese, in weight percent, by colorimetry.
    Mn_pct_ES       Number       Double              Manganese, in weight percent, by semi-quant direct-current arc emission spectrography.
    Mn_pct_ES_Q     Number       Double              Manganese, in weight percent, by quant direct-current arc emission spectrography.
    Mn_pct_MS_HF    Number       Double              Manganese, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Mn_pct_NA       Number       Double              Manganese, in weight percent, by neutron activation.
    Mn_pct_WDX      Number       Double              Manganese, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Mo_ppm_AES_P    Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Mo_ppm_AES_HF   Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mo_ppm_ES       Number       Double              Molybdenum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Mo_ppm_ES_Q     Number       Double              Molybdenum, in parts per million, by quant direct-current arc emission spectrography.
    Mo_ppm_MS_HF    Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Mo_ppm_MS_SF    Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Na_pct_AA       Number       Double              Sodium, in weight percent, by flame-atomic absorption spectrophotometry.
    Na_pct_AA_FE    Number       Double              Sodium, in weight percent, by flame emission spectrophotometry.
    Na_pct_AES_HF   Number       Double              Sodium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Na_pct_ES       Number       Double              Sodium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Na_pct_ES_Q     Number       Double              Sodium, in weight percent, by quant direct-current arc emission spectrography.
    Na_pct_MS_HF    Number       Double              Sodium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Na_pct_NA       Number       Double              Sodium, in weight percent, by neutron activation.
    Na_pct_WDX      Number       Double              Sodium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Nb_ppm_AES_HF   Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Nb_ppm_EDX      Number       Double              Niobium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Nb_ppm_ES       Number       Double              Niobium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Nb_ppm_ES_Q     Number       Double              Niobium, in parts per million, by quant direct-current arc emission spectrography.
    Nb_ppm_MS_HF    Number       Double              Niobium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Nb_ppm_MS_SF    Number       Double              Niobium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Nb_ppm_WDX      Number       Double              Niobium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Nd_ppm_AES_HF   Number       Double              Neodymium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Nd_ppm_ES       Number       Double              Neodymium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Nd_ppm_ES_Q     Number       Double              Neodymium, in parts per million, by quant direct-current arc emission spectrography.
    Nd_ppm_GV       Number       Double              Neodymium, in parts per million, by gravimetry.
    Nd_ppm_MS_HF    Number       Double              Neodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Nd_ppm_MS_SF    Number       Double              Neodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Nd_ppm_NA       Number       Double              Neodymium, in parts per million, by neutron activation.
    Nd_ppm_WDX      Number       Double              Neodymium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ni_ppm_AA       Number       Double              Nickel, in parts per million, by flame-atomic absorption spectrophotometry.
    Ni_ppm_AES_HF   Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ni_ppm_AES_SF   Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ni_ppm_EDX      Number       Double              Nickel, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Ni_ppm_ES       Number       Double              Nickel, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ni_ppm_ES_Q     Number       Double              Nickel, in parts per million, by quant direct-current arc emission spectrography.
    Ni_ppm_MS_HF    Number       Double              Nickel, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ni_ppm_WDX      Number       Double              Nickel, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Os_ppm_ES       Number       Double              Osmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    P_pct_AES_HF    Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    P_pct_AES_SF    Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    P_pct_CM        Number       Double              Phosphorus, in weight percent, by colorimetry.
    P_pct_ES        Number       Double              Phosphorus, in weight percent, by semi-quant direct-current arc emission spectrography.
    P_pct_ES_Q      Number       Double              Phosphorus, in weight percent, by quant direct-current arc emission spectrography.
    P_pct_MS_HF     Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    P_pct_WDX       Number       Double              Phosphorus, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Pb_ppm_AA       Number       Double              Lead, in parts per million, by flame-atomic absorption spectrophotometry.
    Pb_ppm_AA_P     Number       Double              Lead, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Pb_ppm_AES_P    Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Pb_ppm_AES_HF   Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Pb_ppm_ES       Number       Double              Lead, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pb_ppm_ES_Q     Number       Double              Lead, in parts per million, by quant direct-current arc emission spectrography.
    Pb_ppm_MS_HF    Number       Double              Lead, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Pb_ppm_MS_SF    Number       Double              Lead, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Pb_ppm_WDX      Number       Double              Lead, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Pd_ppm_ES       Number       Double              Palladium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pd_ppm_FA_AA    Number       Double              Palladium, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Pd_ppm_FA_MS    Number       Double              Palladium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Pr_ppm_ES       Number       Double              Praseodymium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pr_ppm_ES_Q     Number       Double              Praseodymium, in parts per million, by quant direct-current arc emission spectrography.
    Pr_ppm_MS_HF    Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Pr_ppm_MS_SF    Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Pr_ppm_WDX      Number       Double              Praseodymium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Pt_ppm_ES       Number       Double              Platinum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pt_ppm_FA_AA    Number       Double              Platinum, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Pt_ppm_FA_MS    Number       Double              Platinum, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Mnrl_Geol is a table of spatial, geologic and descriptive attributes for mineral samples.

    FIELD_NAME         FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID             Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID           Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID             Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    SUBMITTER          Text         75                  Name of the individual(s) who submitted the sample in a batch to the laboratory for analysis; not necessarily the sample collector.,
    PROJECT_NAME       Text         50                  Project name, at times derived from a project account number, of work group funded for the collection and analysis of submitted samples.
    DATE_SUBMITTED     Date/Time    n/a                 Date sample was submitted to Sample Control for initial database processing prior to sample prep and analysis.
    DATE_COLLECT       Date/Time    n/a                 Date the sample was collected, when recorded.
    COUNTRY            Text         20                  Country or marine body of water from where the sample was collected.
    STATE              Text         2                   Abbreviation of state from where the sample was collected.
    QUAD               Text         25                  Name of 1:250,000-scale quadrangle (1°x2° or 1°x3°) in which sample was collected.
    LATITUDE           Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE          Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    SPHEROID           Text         25                  Reference spheroid or ellipsoid, when recorded, for the latitude and longitude coordinates of the sample site.
    DATUM              Text         50                  Reference datum, when recorded, for the latitude and longitude coordinates of the sample site.
    LOCATE_DESC        Text         255                 Geographic information relating to the location of the sample site.
    DEPTH              Text         65                  Depth from the surface at which the sample was collected; units are specified by the submitter.
    SAMPLE_SOURCE      Text         40                  Physical setting or environment from which the sample was collected.
    METHOD_COLLECTED   Text         15                  Sample collection method: Single grab, composite, or channel.
    PRIMARY_CLASS      Text         30                  Primary classification of sample media.
    SPECIFIC_NAME      Text         30                  A specific name for the sample media collected; attribute of PRIMARY_CLASS and/or SECONDARY_CLASS.
    SAMPLE_COMMENT     Text         255                 Attribute used to modify PRIMARY_CLASS, SECONDARY_CLASS, or SPECIFIC_NAME; data is not derived from sample codes.
    ADDL_ATTR          Text         255                 Additional attributes used to modify PRIMARY_CLASS, SECONDARY_CLASS, or SPECIFIC_NAME; derived from sample codes in fields of original databases that do not have equivalent fields in the NGDB.
    GEOLOGIC_AGE       Text         60                  Age or range of ages from the Geological Time Scale for the collected sample.
    STRATIGRAPHY       Text         255                 Name of the stratigraphic unit from which the sample was collected. When present, values are as given by the sample submitter and may represent either a formal name, an informal name, or geologic map unit abbreviation.
    IGNEOUS_FORM       Text         25                  An indication of the igneous setting from which the sample was collected.
    MINERALIZATION     Text         35                  An indication of mineralization or mineralization types as provided by the sample submitter.
    METAMORPHISM       Text         15                  An indication of the type of metamorphic setting from which the rock was collected.
    FACIES_GRADE       Text         35                  Metamorphic facies or grade as provided by the sample submitter.
    SOURCE_ROCK        Text         12                  Used in the rock database to identify the precursor rock, igneous or sedimentary, for metamorphic rocks.
    PREP               Text         255                 Description of the sample preparation methods used.
    MESH_PORE_SIZE     Text         60                  Sieve size used in field sampling or laboratory preparation to fractionate the sample.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Mnrl_Rb_Zr is a table of chemical data - rubidium through zirconium - for mineral samples.

    FIELD_NAME      FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    FIELD_ID        Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID          Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LAB_ID          Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    LATITUDE        Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE       Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Rb_ppm_AA       Number       Double              Rubidium, in parts per million, by flame-atomic absorption spectrophotometry.
    Rb_ppm_EDX      Number       Double              Rubidium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Rb_ppm_MS_HF    Number       Double              Rubidium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Rb_ppm_MS_SF    Number       Double              Rubidium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Rb_ppm_NA       Number       Double              Rubidium, in parts per million, by neutron activation.
    Rb_ppm_WDX      Number       Double              Rubidium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Re_ppm_ES       Number       Double              Rhenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Rh_ppm_ES       Number       Double              Rhodium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Rh_ppm_FA_AA    Number       Double              Rhodium, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Rh_ppm_FA_MS    Number       Double              Rhodium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Ru_ppm_ES       Number       Double              Ruthenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ru_ppm_FA_MS    Number       Double              Ruthenium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    S_pct_CB        Number       Double              Total sulfur, in weight percent, by combustion.
    Sb_ppm_AA_P     Number       Double              Antimony, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Sb_ppm_AES_P    Number       Double              Antimony, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Sb_ppm_CM_P     Number       Double              Antimony, in parts per million, by colorimetry after partial digestion.
    Sb_ppm_ES       Number       Double              Antimony, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sb_ppm_ES_Q     Number       Double              Antimony, in parts per million, by quant direct-current arc emission spectrography.
    Sb_ppm_MS_HF    Number       Double              Antimony, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sb_ppm_MS_SF    Number       Double              Antimony, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sb_ppm_NA       Number       Double              Antimony, in parts per million, by neutron activation.
    Sc_ppm_AES_HF   Number       Double              Scandium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sc_ppm_ES       Number       Double              Scandium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sc_ppm_ES_Q     Number       Double              Scandium, in parts per million, by quant direct-current arc emission spectrography.
    Sc_ppm_MS_HF    Number       Double              Scandium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sc_ppm_MS_SF    Number       Double              Scandium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sc_ppm_NA       Number       Double              Scandium, in parts per million, by neutron activation.
    Se_ppm_FL       Number       Double              Selenium, in parts per million, by fluorimetry.
    Se_ppm_MS_HF    Number       Double              Selenium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Si_pct_CM       Number       Double              Silicon, in weight percent, by colorimetry.
    Si_pct_ES       Number       Double              Silicon, in weight percent, by semi-quant direct-current arc emission spectrography.
    Si_pct_ES_Q     Number       Double              Silicon, in weight percent, by quant direct-current arc emission spectrography.
    Si_pct_GV       Number       Double              Silicon, in weight percent, by gravimetry.
    Si_pct_WDX      Number       Double              Silicon, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Sm_ppm_ES       Number       Double              Samarium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sm_ppm_ES_Q     Number       Double              Samarium, in parts per million, by quant direct-current arc emission spectrography.
    Sm_ppm_GV       Number       Double              Samarium, in parts per million, by gravimetry.
    Sm_ppm_MS_HF    Number       Double              Samarium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sm_ppm_MS_SF    Number       Double              Samarium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sm_ppm_NA       Number       Double              Samarium, in parts per million, by neutron activation.
    Sm_ppm_WDX      Number       Double              Samarium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Sn_ppm_AA       Number       Double              Tin, in parts per million, by flame-atomic absorption spectrophotometry.
    Sn_ppm_AES_HF   Number       Double              Tin, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sn_ppm_ES       Number       Double              Tin, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sn_ppm_ES_Q     Number       Double              Tin, in parts per million, by quant direct-current arc emission spectrography.
    Sn_ppm_MS_HF    Number       Double              Tin, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sn_ppm_MS_SF    Number       Double              Tin, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sr_ppm_AA       Number       Double              Strontium, in parts per million, by flame-atomic absorption spectrophotometry.
    Sr_ppm_AES_HF   Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sr_ppm_AES_SF   Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Sr_ppm_EDX      Number       Double              Strontium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Sr_ppm_ES       Number       Double              Strontium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sr_ppm_ES_Q     Number       Double              Strontium, in parts per million, by quant direct-current arc emission spectrography.
    Sr_ppm_MS_HF    Number       Double              Strontium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sr_ppm_NA       Number       Double              Strontium, in parts per million, by neutron activation.
    Sr_ppm_WDX      Number       Double              Strontium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ta_ppm_AES_HF   Number       Double              Tantalum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ta_ppm_ES       Number       Double              Tantalum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ta_ppm_MS_SF    Number       Double              Tantalum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ta_ppm_NA       Number       Double              Tantalum, in parts per million, by neutron activation.
    Tb_ppm_ES       Number       Double              Terbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tb_ppm_ES_Q     Number       Double              Terbium, in parts per million, by quant direct-current arc emission spectrography.
    Tb_ppm_MS_HF    Number       Double              Terbium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Tb_ppm_MS_SF    Number       Double              Terbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tb_ppm_NA       Number       Double              Terbium, in parts per million, by neutron activation.
    Tb_ppm_WDX      Number       Double              Terbium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Te_ppm_AA       Number       Double              Tellurium, in parts per million, by flame-atomic absorption spectrophotometry.
    Te_ppm_ES       Number       Double              Tellurium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Th_ppm_AES_HF   Number       Double              Thorium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Th_ppm_DN       Number       Double              Thorium, in parts per million, by delayed neutron counting.
    Th_ppm_ES       Number       Double              Thorium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Th_ppm_ES_Q     Number       Double              Thorium, in parts per million, by quant direct-current arc emission spectrography.
    Th_ppm_MS_HF    Number       Double              Thorium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Th_ppm_MS_SF    Number       Double              Thorium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Th_ppm_NA       Number       Double              Thorium, in parts per million, by neutron activation.
    Th_ppm_WDX      Number       Double              Thorium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ti_pct_AES_HF   Number       Double              Titanium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ti_pct_AES_SF   Number       Double              Titanium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ti_pct_CM       Number       Double              Titanium, in weight percent, by colorimetry.
    Ti_pct_ES       Number       Double              Titanium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Ti_pct_ES_Q     Number       Double              Titanium, in weight percent, by quant direct-current arc emission spectrography.
    Ti_pct_MS_HF    Number       Double              Titanium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ti_pct_WDX      Number       Double              Titanium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Tl_ppm_ES       Number       Double              Thallium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tl_ppm_MS_HF    Number       Double              Thallium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Tl_ppm_MS_SF    Number       Double              Thallium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tm_ppm_ES       Number       Double              Thulium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tm_ppm_ES_Q     Number       Double              Thulium, in parts per million, by quant direct-current arc emission spectrography.
    Tm_ppm_GV       Number       Double              Thulium, in parts per million, by gravimetry.
    Tm_ppm_MS_HF    Number       Double              Thulium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Tm_ppm_MS_SF    Number       Double              Thulium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tm_ppm_NA       Number       Double              Thulium, in parts per million, by neutron activation.
    Tm_ppm_WDX      Number       Double              Thulium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    U_ppm_AES_HF    Number       Double              Uranium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    U_ppm_DN        Number       Double              Uranium, in parts per million, by delayed neutron counting.
    U_ppm_ES        Number       Double              Uranium, in parts per million, by semi-quant direct-current arc emission spectrography.
    U_ppm_ES_Q      Number       Double              Uranium, in parts per million, by quant direct-current arc emission spectrography.
    U_ppm_MS_HF     Number       Double              Uranium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    U_ppm_MS_SF     Number       Double              Uranium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    U_ppm_NA        Number       Double              Uranium, in parts per million, by neutron activation.
    U_ppm_WDX       Number       Double              Uranium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ueq_ppm_GRC     Number       Double              Uranium, equivalents in parts per million, gamma ray counting.
    V_ppm_AES_HF    Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    V_ppm_AES_SF    Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    V_ppm_ES        Number       Double              Vanadium, in parts per million, by semi-quant direct-current arc emission spectrography.
    V_ppm_ES_Q      Number       Double              Vanadium, in parts per million, by quant direct-current arc emission spectrography.
    V_ppm_MS_HF     Number       Double              Vanadium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    W_ppm_ES        Number       Double              Tungsten, in parts per million, by semi-quant direct-current arc emission spectrography.
    W_ppm_MS_SF     Number       Double              Tungsten, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Y_ppm_AES_HF    Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Y_ppm_EDX       Number       Double              Yttrium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Y_ppm_ES        Number       Double              Yttrium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Y_ppm_ES_Q      Number       Double              Yttrium, in parts per million, by quant direct-current arc emission spectrography.
    Y_ppm_GV        Number       Double              Yttrium, in parts per million, by gravimetry.
    Y_ppm_MS_HF     Number       Double              Yttrium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Y_ppm_MS_SF     Number       Double              Yttrium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Y_ppm_WDX       Number       Double              Yttrium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Yb_ppm_AES_HF   Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Yb_ppm_ES       Number       Double              Ytterbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Yb_ppm_ES_Q     Number       Double              Ytterbium, in parts per million, by quant direct-current arc emission spectrography.
    Yb_ppm_GV       Number       Double              Ytterbium, in parts per million, by gravimetry.
    Yb_ppm_MS_HF    Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Yb_ppm_MS_SF    Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Yb_ppm_NA       Number       Double              Ytterbium, in parts per million, by neutron activation.
    Yb_ppm_WDX      Number       Double              Ytterbium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Zn_ppm_AA       Number       Double              Zinc, in parts per million, by flame-atomic absorption spectrophotometry.
    Zn_ppm_AA_P     Number       Double              Zinc, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Zn_ppm_AES_P    Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Zn_ppm_AES_HF   Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Zn_ppm_AES_SF   Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Zn_ppm_EDX      Number       Double              Zinc, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Zn_ppm_ES       Number       Double              Zinc, in parts per million, by semi-quant direct-current arc emission spectrography.
    Zn_ppm_ES_Q     Number       Double              Zinc, in parts per million, by quant direct-current arc emission spectrography.
    Zn_ppm_MS_HF    Number       Double              Zinc, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Zn_ppm_NA       Number       Double              Zinc, in parts per million, by neutron activation.
    Zr_ppm_AES_SF   Number       Double              Zirconium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Zr_ppm_EDX      Number       Double              Zirconium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Zr_ppm_ES       Number       Double              Zirconium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Zr_ppm_ES_Q     Number       Double              Zirconium, in parts per million, by quant direct-current arc emission spectrography.
    Zr_ppm_GV       Number       Double              Zirconium, in parts per million, by gravimetry.
    Zr_ppm_NA       Number       Double              Zirconium, in parts per million, by neutron activation.
    Zr_ppm_WDX      Number       Double              Zirconium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Mnrlgy is a table of mineralogy data for non-magnetic heavy mineral concentrate samples.

    FIELD_NAME                 FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID                     Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID                   Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID                     Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE                   Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE                  Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    ARS                        Text         10                  Arsenopyrite, presence or relative abundance, observed in concentrate sample.
    AU                         Text         10                  Gold, presence or relative abundance, observed in concentrate sample.
    BAR                        Text         10                  Barite, presence or relative abundance, observed in concentrate sample.
    CAS                        Text         10                  Cassiterite, presence or relative abundance, observed in concentrate sample.
    CIN                        Text         10                  Cinnabar, presence or relative abundance, observed in concentrate sample.
    CPY                        Text         10                  Chalcopyrite, presence or relative abundance, observed in concentrate sample.
    FLR                        Text         10                  Fluorite, presence or relative abundance, observed in concentrate sample.
    GAL                        Text         10                  Galena, presence or relative abundance, observed in concentrate sample.
    MLY                        Text         10                  Molybdenite, presence or relative abundance, observed in concentrate sample.
    MNZ                        Text         10                  Monazite, presence or relative abundance, observed in concentrate sample.
    MNZ_dk                     Text         10                  Monazite, dark variety, presence or relative abundance, observed in concentrate sample.
    MNZ_yel                    Text         10                  Monazite, yellow variety, presence or relative abundance, observed in concentrate sample.
    POW                        Text         10                  Powellite, presence or relative abundance, observed in concentrate sample.
    PYR                        Text         10                  Pyrite, presence or relative abundance, observed in concentrate sample.
    SCH                        Text         10                  Scheelite, presence or relative abundance, observed in concentrate sample.
    SPH                        Text         10                  Sphalerite, presence or relative abundance, observed in concentrate sample.
    STB                        Text         10                  Stibnite, presence or relative abundance, observed in concentrate sample.
    THR                        Text         10                  Thorite, presence or relative abundance, observed in concentrate sample.
    NORM                       Text         10                  No ore related minerals found.
    OreRelatedMnrl_Comment     Text         255                 Comment regarding ore or gem related minerals after optical work.
    RockFormingMnrl_Comment    Text         255                 Comments regarding rock-forming minerals after optical work.
    Optical_Comment            Text         255                 General mineralogy comments after optical work.
    Inferred_Comment           Text         255                 Tripp's comments without optical work, based on chemical analyses and previous USGS map publications.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Rock_E_Geol is a table of spatial, geologic and descriptive attributes for rock samples located east of W147 degrees.

    FIELD_NAME         FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID             Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID           Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID             Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    SUBMITTER          Text         75                  Name of the individual(s) who submitted the sample in a batch to the laboratory for analysis; not necessarily the sample collector.,
    PROJECT_NAME       Text         50                  Project name, at times derived from a project account number, of work group funded for the collection and analysis of submitted samples.
    DATE_SUBMITTED     Date/Time    n/a                 Date sample was submitted to Sample Control for initial database processing prior to sample prep and analysis.
    DATE_COLLECT       Date/Time    n/a                 Date the sample was collected, when recorded.
    COUNTRY            Text         20                  Country or marine body of water from where the sample was collected.
    STATE              Text         2                   Abbreviation of state from where the sample was collected.
    QUAD               Text         25                  Name of 1:250,000-scale quadrangle (1°x2° or 1°x3°) in which sample was collected.
    LATITUDE           Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE          Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    SPHEROID           Text         25                  Reference spheroid or ellipsoid, when recorded, for the latitude and longitude coordinates of the sample site.
    DATUM              Text         50                  Reference datum, when recorded, for the latitude and longitude coordinates of the sample site.
    LOCATE_DESC        Text         255                 Geographic information relating to the location of the sample site.
    DEPTH              Text         65                  Depth from the surface at which the sample was collected; units are specified by the submitter.
    SAMPLE_SOURCE      Text         40                  Physical setting or environment from which the sample was collected.
    METHOD_COLLECTED   Text         15                  Sample collection method: Single grab, composite, or channel.
    PRIMARY_CLASS      Text         30                  Primary classification of sample media.
    SECONDARY_CLASS    Text         15                  Secondary classification or subclass of sample media; attribute of PRIMARY_CLASS.
    SPECIFIC_NAME      Text         30                  A specific name for the sample media collected; attribute of PRIMARY_CLASS and/or SECONDARY_CLASS.
    SAMPLE_COMMENT     Text         255                 Attribute used to modify PRIMARY_CLASS, SECONDARY_CLASS, or SPECIFIC_NAME; data is not derived from sample codes.
    ADDL_ATTR          Text         255                 Additional attributes used to modify PRIMARY_CLASS, SECONDARY_CLASS, or SPECIFIC_NAME; derived from sample codes in fields of original databases that do not have equivalent fields in the NGDB.
    GEOLOGIC_AGE       Text         60                  Age or range of ages from the Geological Time Scale for the collected sample.
    STRATIGRAPHY       Text         255                 Name of the stratigraphic unit from which the sample was collected. When present, values are as given by the sample submitter and may represent either a formal name, an informal name, or geologic map unit abbreviation.
    MINERALIZATION     Text         35                  An indication of mineralization or mineralization types as provided by the sample submitter.
    ALTERATION         Text         50                  An indication of the presence or type of alteration noted in the sample by the submitter.
    IGNEOUS_FORM       Text         25                  An indication of the igneous setting from which the sample was collected.
    METAMORPHISM       Text         15                  An indication of the type of metamorphic setting from which the rock was collected.
    FACIES_GRADE       Text         35                  Metamorphic facies or grade as provided by the sample submitter.
    SOURCE_ROCK        Text         12                  Used in the rock database to identify the precursor rock, igneous or sedimentary, for metamorphic rocks.
    DEPOSIT_ENVIRON    Text         15                  Original environment of deposition for sedimentary rocks.
    PREP               Text         255                 Description of the sample preparation methods used.
    MESH_PORE_SIZE     Text         60                  Sieve size used in field sampling or laboratory preparation to fractionate the sample.
    PREVIOUS_JOB_ID    Text         20                  Original NGDB batch number (JOB_ID) of a USGS resubmitted sample that has been given a new batch number upon resubmittal for further analysis.
    PREVIOUS_LAB_ID    Text         20                  Original NGDB LAB_ID of a USGS resubmitted sample that has been given a new lab number upon resubmittal for further analysis.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Rock_E_Majors is a table of chemical "whole rock" data for rock samples located east of W147 degrees.

    FIELD_NAME             FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID                 Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID               Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID                 Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE               Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE              Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    AcidInsol_pct_GV       Number       Double              Acid-insoluble residue, in weight percent, by gravimetry.
    Al2O3_pct_AES_AR       Number       Double              Aluminum, as aluminum trioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Al2O3_pct_AES_HF       Number       Double              Aluminum, as aluminum trioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Al2O3_pct_AES_SF       Number       Double              Aluminum, as aluminum trioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Al2O3_pct_CM           Number       Double              Aluminum, as aluminum trioxide, in weight percent, by colorimetry.
    Al2O3_pct_ES           Number       Double              Aluminum, as aluminum trioxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    Al2O3_pct_ES_Q         Number       Double              Aluminum, as aluminum trioxide, in weight percent, by quant direct-current arc emission spectrography.
    Al2O3_pct_GV           Number       Double              Aluminum, as aluminum trioxide, in weight percent, by gravimetry.
    Al2O3_pct_MS_HF        Number       Double              Aluminum, as aluminum trioxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Al2O3_pct_WDX          Number       Double              Aluminum, as aluminum trioxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ash_pct_GV             Number       Double              Ash, in weight percent, by gravimetry.
    C_pct_CB               Number       Double              Total carbon, in weight percent, by combustion.
    CO2_pct_TT             Number       Double              Carbon dioxide, in weight percent, by titration.
    CO2_pct_VOL            Number       Double              Carbon dioxide, in weight percent, by a volumetric method.
    CCO3_pct_TT            Number       Double              Carbonate carbon, in weight percent, by titration.
    CCO3_pct_VOL           Number       Double              Carbonate carbon, in weight percent, by a volumetric method.
    COrg_pct_CP            Number       Double              Organic carbon, in weight percent, by computation.
    CaO_pct_AA             Number       Double              Calcium, as calcium oxide, in weight percent, by flame-atomic absorption spectrophotometry.
    CaO_pct_AES_AR         Number       Double              Calcium, as calcium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    CaO_pct_AES_HF         Number       Double              Calcium, as calcium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    CaO_pct_AES_SF         Number       Double              Calcium, as calcium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    CaO_pct_CM             Number       Double              Calcium, as calcium oxide, in weight percent, by colorimetry.
    CaO_pct_ES             Number       Double              Calcium, as calcium oxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    CaO_pct_ES_Q           Number       Double              Calcium, as calcium oxide, in weight percent, by quant direct-current arc emission spectrography.
    CaO_pct_GV             Number       Double              Calcium, as calcium oxide, in weight percent, by gravimetry.
    CaO_pct_MS_HF          Number       Double              Calcium, as calcium oxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    CaO_pct_NA             Number       Double              Calcium, as calcium oxide, in weight percent, by neutron activation.
    CaOCV_pct_NA           Number       Double              Calcium, as calcium oxide, coefficient of variance, in percent, by neutron activation.
    CaO_pct_WDX            Number       Double              Calcium, as calcium oxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Cl_pct_CM              Number       Double              Chlorine, in weight percent, by colorimetry.
    Cl_pct_IC              Number       Double              Chloride, in weight percent, by ion chromatography.
    Cl_pct_ISE             Number       Double              Chlorine, in weight percent, by ion specific electrode.
    Cl_pct_NA              Number       Double              Chlorine, in weight percent, by neutron activation.
    Cl_pct_WDX             Number       Double              Chlorine, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    DensB_gcc_GV           Number       Double              Bulk density, in grams per cubic centimeter, by gravimetry.
    DensP_gcc_GV           Number       Double              Powder density, in grams per cubic centimeter, by gravimetry.
    F_pct_CM               Number       Double              Fluorine, in weight percent, by colorimetry.
    F_pct_ISE              Number       Double              Fluorine, in weight percent, by ion specific electrode.
    F_pct_NA               Number       Double              Fluorine, in weight percent, by neutron activation.
    Fe2O3_pct_AES_SF       Number       Double              Iron, as iron trioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Fe2O3_pct_CM           Number       Double              Iron, as iron trioxide, in weight percent, by colorimetry.
    Fe2O3_pct_TT           Number       Double              Iron, as iron trioxide, in weight percent, by titration.
    FeO_pct_TT             Number       Double              Ferrous oxide, by titration.
    FeTO3_pct_AA           Number       Double              Iron, as total iron oxide, in weight percent, by flame-atomic absorption spectrophotometry.
    FeTO3_pct_AES_AR       Number       Double              Iron, as total iron oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    FeTO3_pct_AES_HF       Number       Double              Iron, as total iron oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    FeTO3_pct_AES_SF       Number       Double              Iron, as total iron oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    FeTO3_pct_CM           Number       Double              Iron, as total iron oxide, in weight percent, by colorimetry.
    FeTO3_pct_ES           Number       Double              Iron, as total iron oxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    FeTO3_pct_ES_Q         Number       Double              Iron, as total iron oxide, in weight percent, by quant direct-current arc emission spectrography.
    FeTO3_pct_MS_HF        Number       Double              Iron, as total iron oxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    FeTO3_pct_NA           Number       Double              Iron, as total iron oxide, in weight percent, by neutron activation.
    FeTO3CV_pct_NA         Number       Double              Iron, as total iron oxide, coefficient of variance, in weight percent, by neutron activation.
    FeTO3_pct_WDX          Number       Double              Iron, as total iron oxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Gas_pct_GV             Number       Double              Gas, in weight percent, by gravimetry.
    H_pct_CB               Number       Double              Hydrogen, in weight percent, by combustion.
    H2O_pct_GV             Number       Double              Total water, in weight percent, by gravimetry.
    H2Om_pct_GV            Number       Double              Moisture, in weight percent, by gravimetry.
    H2O_pct_TT             Number       Double              Total water, in weight percent, by titration.
    H2Ob_pct_GV            Number       Double              Bound water, in weight percent, by gravimetry.
    H2Ob_pct_TT            Number       Double              Bound water, in weight percent, by titration.
    H2Oa_galton_GV         Number       Double              Water, in gallons per ton, by gravimetry.
    HCsol_pct_GV           Number       Double              Soluble hydrocarbons, in weight percent, by gravimetry.
    K2O_pct_AA             Number       Double              Potassium, as potassium oxide, in weight percent, by flame-atomic absorption spectrophotometry.
    K2O_pct_AA_FE          Number       Double              Potassium, as potassium oxide, in weight percent, by flame emission spectrophotometry.
    K2O_pct_AES_AR         Number       Double              Potassium, as potassium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    K2O_pct_AES_HF         Number       Double              Potassium, as potassium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    K2O_pct_AES_SF         Number       Double              Potassium, as potassium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    K2O_pct_ES             Number       Double              Potassium, as potassium oxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    K2O_pct_ES_Q           Number       Double              Potassium, as potassium oxide, in weight percent, by quant direct-current arc emission spectrography.
    K2O_pct_MS_HF          Number       Double              Potassium, as potassium oxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    K2O_pct_NA             Number       Double              Potassium, as potassium oxide, in weight percent, by neutron activation.
    K2OCV_pct_NA           Number       Double              Potassium, as potassium oxide, coefficient of variance, in percent, by neutron activation.
    K2O_pct_WDX            Number       Double              Potassium, as potassium oxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    LOI_pct_GV             Number       Double              Loss on ignition, in weight percent, by gravimetry.
    MgO_pct_AA             Number       Double              Magnesium, as magnesium oxide, in weight percent, by flame-atomic absorption spectrophotometry.
    MgO_pct_AES_AR         Number       Double              Magnesium, as magnesium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    MgO_pct_AES_HF         Number       Double              Magnesium, as magnesium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    MgO_pct_AES_SF         Number       Double              Magnesium, as magnesium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    MgO_pct_CM             Number       Double              Magnesium, as magnesium oxide, in weight percent, by colorimetry.
    MgO_pct_ES             Number       Double              Magnesium, as magnesium oxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    MgO_pct_ES_Q           Number       Double              Magnesium, as magnesium oxide, in weight percent, by quant direct-current arc emission spectrography.
    MgO_pct_GV             Number       Double              Magnesium, as magnesium oxide, in weight percent, by gravimetry.
    MgO_pct_MS_HF          Number       Double              Magnesium, as magnesium oxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    MgO_pct_WDX            Number       Double              Magnesium, as magnesium oxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    MnO_pct_AA             Number       Double              Manganese, as manganese oxide, in weight percent, by flame-atomic absorption spectrophotometry.
    MnO_pct_AA_P           Number       Double              Manganese, as manganese oxide, in weight percent, by flame-atomic absorption spectrophotometry after partial digestion.
    MnO_pct_AES_AR         Number       Double              Manganese, as manganese oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    MnO_pct_AES_HF         Number       Double              Manganese, as manganese oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    MnO_pct_AES_SF         Number       Double              Manganese, as manganese oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    MnO_pct_CM             Number       Double              Manganese, as manganese oxide, in weight percent, by colorimetry.
    MnO_pct_ES             Number       Double              Manganese, as manganese oxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    MnO_pct_ES_Q           Number       Double              Manganese, as manganese oxide, in weight percent, by quant direct-current arc emission spectrography.
    MnO_pct_MS_HF          Number       Double              Manganese, as manganese oxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    MnO_pct_NA             Number       Double              Manganese, as manganese oxide, in weight percent, by neutron activation.
    MnO_pct_WDX            Number       Double              Manganese, as manganese oxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    N_pct_CB               Number       Double              Nitrogen, in weight percent, by combustion.
    Na2O_pct_AA            Number       Double              Sodium, as sodium dioxide, in weight percent, by flame-atomic absorption spectrophotometry.
    Na2O_pct_AA_FE         Number       Double              Sodium, as sodium dioxide, in weight percent, by flame emission spectrophotometry.
    Na2O_pct_AES_AR        Number       Double              Sodium, as sodium dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Na2O_pct_AES_HF        Number       Double              Sodium, as sodium dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Na2O_pct_AES_SF        Number       Double              Sodium, as sodium dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Na2O_pct_ES            Number       Double              Sodium, as sodium dioxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    Na2O_pct_ES_Q          Number       Double              Sodium, as sodium dioxide, in weight percent, by quant direct-current arc emission spectrography.
    Na2O_pct_MS_HF         Number       Double              Sodium, as sodium dioxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Na2O_pct_NA            Number       Double              Sodium, as sodium dioxide, in weight percent, by neutron activation.
    Na2OCV_pct_NA          Number       Double              Sodium, as sodium dioxide, coefficient of variance, in percent, by neutron activation.
    Na2O_pct_WDX           Number       Double              Sodium, as sodium dioxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Oil_pct_GV             Number       Double              Oil, in weight percent, by gravimetry.
    OilA_galton_GV         Number       Double              Oil, in gallons per ton, by gravimetry.
    OilG_gcc_GV            Number       Double              Oil gravity, in grams per cubic centimeter, by gravimetry.
    P2O5_pct_AES_AR        Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    P2O5_pct_AES_HF        Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    P2O5_pct_AES_SF        Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    P2O5_pct_CM            Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by colorimetry.
    P2O5_pct_CM_P          Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by colorimetry after partial digestion.
    P2O5_pct_ES            Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    P2O5_pct_ES_Q          Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by quant direct-current arc emission spectrography.
    P2O5_pct_MS_HF         Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    P2O5_pct_WDX           Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    S_pct_AES_HF           Number       Double              Total sulfur, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    S_pct_CB               Number       Double              Total sulfur, in weight percent, by combustion.
    S_pct_WDX              Number       Double              Total sulfur, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    SO3_pct_CB             Number       Double              Acid-soluble sulfate, in weight percent, by combustion.
    SO3_pct_WDX            Number       Double              Acid-soluble sulfate, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    SO4_pct_CB             Number       Double              Sulfate, in weight percent, by combustion.
    SOrg_pct_CP            Number       Double              Organic sulfur, in weight percent, by computation.
    SPyr_pct_CP            Number       Double              Pyritic sulfur, in weight percent, by computation.
    Sulfide_pct_CB         Number       Double              Sulfide, in weight percent, by combustion.
    Sulfide_pct_TB         Number       Double              Sulfide, in weight percent, by turbidimetry.
    SiO2_pct_AES_HF        Number       Double              Silicon, as silicon dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    SiO2_pct_AES_SF        Number       Double              Silicon, as silicon dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    SiO2_pct_CM            Number       Double              Silicon, as silicon dioxide, in weight percent, by colorimetry.
    SiO2_pct_ES            Number       Double              Silicon, as silicon dioxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    SiO2_pct_ES_Q          Number       Double              Silicon, as silicon dioxide, in weight percent, by quant direct-current arc emission spectrography.
    SiO2_pct_GV            Number       Double              Silicon, as silicon dioxide, in weight percent, by gravimetry.
    SiO2_pct_MS_SF         Number       Double              Silicon, as silicon dioxide, in weight percent, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    SiO2_pct_WDX           Number       Double              Silicon, as silicon dioxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    TiO2_pct_AES_AR        Number       Double              Titanium, as titanium dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    TiO2_pct_AES_HF        Number       Double              Titanium, as titanium dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    TiO2_pct_AES_SF        Number       Double              Titanium, as titanium dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    TiO2_pct_CM            Number       Double              Titanium, as titanium dioxide, in weight percent, by colorimetry.
    TiO2_pct_ES            Number       Double              Titanium, as titanium dioxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    TiO2_pct_ES_Q          Number       Double              Titanium, as titanium dioxide, in weight percent, by quant direct-current arc emission spectrography.
    TiO2_pct_MS_HF         Number       Double              Titanium, as titanium dioxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    TiO2_pct_WDX           Number       Double              Titanium, as titanium dioxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Total_pct_CP           Number       Double              Total, calculated, in weight percent, by computation.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Rock_E_Traces_Ag_Cr is a table of trace element data - silver through chromium - for rock samples located east of W147 degrees.

    FIELD_NAME            FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID                Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID              Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID                Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE              Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE             Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Ag_ppm_AA             Number       Double              Silver, in parts per million, by flame-atomic absorption spectrophotometry.
    Ag_ppm_AA_P           Number       Double              Silver, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Ag_ppm_AES_P          Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Ag_ppm_AES_AR         Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ag_ppm_AES_HF         Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ag_ppm_EDX            Number       Double              Silver, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Ag_ppm_ES             Number       Double              Silver, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ag_ppm_ES_Q           Number       Double              Silver, in parts per million, by quant direct-current arc emission spectrography.
    Ag_ppm_FA_AA          Number       Double              Silver, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Ag_ppm_MS_HF          Number       Double              Silver, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ag_ppm_MS_SF          Number       Double              Silver, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    As_ppm_AA             Number       Double              Arsenic, in parts per million, by flame-atomic absorption spectrophotometry.
    As_ppm_AA_P           Number       Double              Arsenic, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    As_ppm_AA_HG          Number       Double              Arsenic, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    As_ppm_AES_P          Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    As_ppm_AES_AR         Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    As_ppm_AES_HF         Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    As_ppm_CM_P           Number       Double              Arsenic, in parts per million, by colorimetry after partial digestion.
    As_ppm_EDX            Number       Double              Arsenic, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    As_ppm_ES             Number       Double              Arsenic, in parts per million, by semi-quant direct-current arc emission spectrography.
    As_ppm_ES_Q           Number       Double              Arsenic, in parts per million, by quant direct-current arc emission spectrography.
    As_ppm_MS_HF          Number       Double              Arsenic, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    As_ppm_MS_SF          Number       Double              Arsenic, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    As_ppm_NA             Number       Double              Arsenic, in parts per million, by neutron activation.
    AsCV_pct_NA           Number       Double              Arsenic, coefficient of variance, in percent, by neutron activation.
    Au_ppm_AA             Number       Double              Gold, in parts per million, by flame-atomic absorption spectrophotometry.
    Au_ppm_AA_GF          Number       Double              Gold, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    Au_ppm_AES_P          Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Au_ppm_AES_AR         Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Au_ppm_AES_HF         Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Au_ppm_ES             Number       Double              Gold, in parts per million, by semi-quant direct-current arc emission spectrography.
    Au_ppm_ES_Q           Number       Double              Gold, in parts per million, by quant direct-current arc emission spectrography.
    Au_ppm_FA_AA          Number       Double              Gold, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Au_ppm_FA_DC          Number       Double              Gold, in parts per million, by fire assay and direct current plasma-atomic emission spectroscopy.
    Au_ppm_FA_ES          Number       Double              Gold, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Au_ppm_FA_MS          Number       Double              Gold, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Au_ppm_MS_HF          Number       Double              Gold, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Au_ppm_NA             Number       Double              Gold, in parts per million, by neutron activation.
    AuCV_pct_NA           Number       Double              Gold, coefficient of variance, in percent, by neutron activation.
    SplWtAu_g_GV          Number       Double              Sample weight for gold analysis, in grams, by gravimetry.
    B_ppm_AES_AR          Number       Double              Boron, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    B_ppm_AES_SF          Number       Double              Boron, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    B_ppm_CM              Number       Double              Boron, in parts per million, by colorimetry.
    B_ppm_ES              Number       Double              Boron, in parts per million, by semi-quant direct-current arc emission spectrography.
    B_ppm_ES_P            Number       Double              Boron, in parts per million, by semi-quant direct-current arc emission spectrography after partial digestion.
    B_ppm_ES_Q            Number       Double              Boron, in parts per million, by quant direct-current arc emission spectrography.
    Ba_ppm_AES_AR         Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ba_ppm_AES_HF         Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ba_ppm_AES_SF         Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ba_ppm_CM             Number       Double              Barium, in parts per million, by colorimetry.
    Ba_ppm_EDX            Number       Double              Barium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Ba_ppm_ES             Number       Double              Barium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ba_ppm_ES_Q           Number       Double              Barium, in parts per million, by quant direct-current arc emission spectrography.
    Ba_ppm_GV             Number       Double              Barium, in parts per million, by gravimetry.
    Ba_ppm_MS_HF          Number       Double              Barium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ba_ppm_MS_SF          Number       Double              Barium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ba_ppm_NA             Number       Double              Barium, in parts per million, by neutron activation.
    BaCV_pct_NA           Number       Double              Barium, coefficient of variance, in percent, by neutron activation.
    Ba_ppm_WDX            Number       Double              Barium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Be_ppm_AA             Number       Double              Beryllium, in parts per million, by flame-atomic absorption spectrophotometry.
    Be_ppm_AES_AR         Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Be_ppm_AES_HF         Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Be_ppm_AES_SF         Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Be_ppm_ES             Number       Double              Beryllium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Be_ppm_ES_Q           Number       Double              Beryllium, in parts per million, by quant direct-current arc emission spectrography.
    Be_ppm_MS_HF          Number       Double              Beryllium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Bi_ppm_AA             Number       Double              Bismuth, in parts per million, by flame-atomic absorption spectrophotometry.
    Bi_ppm_AA_P           Number       Double              Bismuth, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Bi_ppm_AES_P          Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Bi_ppm_AES_AR         Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Bi_ppm_AES_HF         Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Bi_ppm_EDX            Number       Double              Bismuth, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Bi_ppm_ES             Number       Double              Bismuth, in parts per million, by semi-quant direct-current arc emission spectrography.
    Bi_ppm_ES_Q           Number       Double              Bismuth, in parts per million, by quant direct-current arc emission spectrography.
    Bi_ppm_MS_HF          Number       Double              Bismuth, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Bi_ppm_MS_SF          Number       Double              Bismuth, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Br_ppm_CM             Number       Double              Bromine, in parts per million, by colorimetry.
    Br_ppm_EDX            Number       Double              Bromine, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Br_ppm_NA             Number       Double              Bromine, in parts per million, by neutron activation.
    Br_ppm_WDX            Number       Double              Bromine, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ca_meqgL_AA_P_XC      Number       Double              Calcium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    Ca_meqgL_AA_P_XS      Number       Double              Calcium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    Cd_ppm_AA             Number       Double              Cadmium, in parts per million, by flame-atomic absorption spectrophotometry.
    Cd_ppm_AA_P           Number       Double              Cadmium, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Cd_ppm_AES_P          Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cd_ppm_AES_AR         Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cd_ppm_AES_HF         Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cd_ppm_EDX            Number       Double              Cadmium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Cd_ppm_ES             Number       Double              Cadmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cd_ppm_ES_Q           Number       Double              Cadmium, in parts per million, by quant direct-current arc emission spectrography.
    Cd_ppm_MS_HF          Number       Double              Cadmium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cd_ppm_MS_SF          Number       Double              Cadmium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Cd_ppm_NA             Number       Double              Cadmium, in parts per million, by neutron activation.
    CdCV_pct_NA           Number       Double              Cadmium, coefficient of variance, in percent, by neutron activation.
    Ce_ppm_AES_AR         Number       Double              Cerium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ce_ppm_AES_HF         Number       Double              Cerium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ce_ppm_AES_HF_REE     Number       Double              Cerium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Ce_ppm_EDX            Number       Double              Cerium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Ce_ppm_ES             Number       Double              Cerium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ce_ppm_ES_Q           Number       Double              Cerium, in parts per million, by quant direct-current arc emission spectrography.
    Ce_ppm_MS_HF          Number       Double              Cerium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ce_ppm_MS_SF          Number       Double              Cerium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ce_ppm_NA             Number       Double              Cerium, in parts per million, by neutron activation.
    CeCV_pct_NA           Number       Double              Cerium, coefficient of variance, in percent, by neutron activation.
    Ce_ppm_WDX            Number       Double              Cerium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    CEC_meqg100g_CP_P     Number       Double              Cation exchange capacity, in milliequivalent-grams per100 grams, by computation after partial digestion.
    Cl_meqgL_ISE_P        Number       Double              Chloride, in milliequivalent-grams per liter, by ion specific electrode after partial digestion.
    Co_ppm_AA             Number       Double              Cobalt, in parts per million, by flame-atomic absorption spectrophotometry.
    Co_ppm_AA_P           Number       Double              Cobalt, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Co_ppm_AES_P          Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Co_ppm_AES_AR         Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Co_ppm_AES_HF         Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Co_ppm_CM             Number       Double              Cobalt, in parts per million, by colorimetry.
    Co_ppm_ES             Number       Double              Cobalt, in parts per million, by semi-quant direct-current arc emission spectrography.
    Co_ppm_ES_Q           Number       Double              Cobalt, in parts per million, by quant direct-current arc emission spectrography.
    Co_ppm_MS_HF          Number       Double              Cobalt, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Co_ppm_MS_SF          Number       Double              Cobalt, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Co_ppm_NA             Number       Double              Cobalt, in parts per million, by neutron activation.
    CoCV_pct_NA           Number       Double              Cobalt, coefficient of variance, in percent, by neutron activation.
    Cr_ppm_AA             Number       Double              Chromium, in parts per million, by flame-atomic absorption spectrophotometry.
    Cr_ppm_AES_P          Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cr_ppm_AES_AR         Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cr_ppm_AES_HF         Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cr_ppm_AES_SF         Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Cr_ppm_CM             Number       Double              Chromium, in parts per million, by colorimetry.
    Cr_ppm_EDX            Number       Double              Chromium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Cr_ppm_ES             Number       Double              Chromium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cr_ppm_ES_Q           Number       Double              Chromium, in parts per million, by quant direct-current arc emission spectrography.
    Cr_ppm_MS_HF          Number       Double              Chromium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cr_ppm_NA             Number       Double              Chromium, in parts per million, by neutron activation.
    CrCV_pct_NA           Number       Double              Chromium, coefficient of variance, in percent, by neutron activation.
    Cr_ppm_WDX            Number       Double              Chromium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Rock_E_Traces_Cs_Na is a table of trace element data - cesium through sodium - for rock samples located east of W147 degrees.

    FIELD_NAME           FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID               Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID             Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID               Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE             Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE            Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Cs_ppm_AA            Number       Double              Cesium, in parts per million, by flame-atomic absorption spectrophotometry.
    Cs_ppm_EDX           Number       Double              Cesium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Cs_ppm_ES            Number       Double              Cesium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cs_ppm_MS_HF         Number       Double              Cesium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cs_ppm_MS_SF         Number       Double              Cesium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Cs_ppm_NA            Number       Double              Cesium, in parts per million, by neutron activation.
    CsCV_pct_NA          Number       Double              Cesium, coefficient of variance, in percent, by neutron activation.
    Cu_ppm_AA            Number       Double              Copper, in parts per million, by flame-atomic absorption spectrophotometry.
    Cu_ppm_AA_P          Number       Double              Copper, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Cu_ppm_AES_P         Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cu_ppm_AES_AR        Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cu_ppm_AES_HF        Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cu_ppm_AES_SF        Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Cu_ppm_EDX           Number       Double              Copper, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Cu_ppm_ES            Number       Double              Copper, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cu_ppm_ES_Q          Number       Double              Copper, in parts per million, by quant direct-current arc emission spectrography.
    Cu_ppm_MS_HF         Number       Double              Copper, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cu_ppm_NA            Number       Double              Copper, in parts per million, by neutron activation.
    CuCV_pct_NA          Number       Double              Copper, coefficient of variance, in percent, by neutron activation.
    Dy_ppm_AES_HF        Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Dy_ppm_AES_HF_REE    Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Dy_ppm_ES            Number       Double              Dysprosium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Dy_ppm_MS_SF         Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Dy_ppm_NA            Number       Double              Dysprosium, in parts per million, by neutron activation.
    Dy_ppm_WDX           Number       Double              Dysprosium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Er_ppm_AES_HF        Number       Double              Erbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Er_ppm_AES_HF_REE    Number       Double              Erbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Er_ppm_ES            Number       Double              Erbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Er_ppm_MS_SF         Number       Double              Erbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Er_ppm_WDX           Number       Double              Erbium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Eu_ppm_AES_HF        Number       Double              Europium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Eu_ppm_AES_HF_REE    Number       Double              Europium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Eu_ppm_ES            Number       Double              Europium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Eu_ppm_MS_SF         Number       Double              Europium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Eu_ppm_NA            Number       Double              Europium, in parts per million, by neutron activation.
    EuCV_pct_NA          Number       Double              Europium, in parts per million, by neutron activation.
    Eu_ppm_WDX           Number       Double              Europium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Fe_ppm_AA_P          Number       Double              Iron, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Ga_ppm_AES_AR        Number       Double              Gallium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ga_ppm_AES_HF        Number       Double              Gallium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ga_ppm_EDX           Number       Double              Gallium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Ga_ppm_ES            Number       Double              Gallium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ga_ppm_ES_Q          Number       Double              Gallium, in parts per million, by quant direct-current arc emission spectrography.
    Ga_ppm_MS_HF         Number       Double              Gallium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ga_ppm_MS_SF         Number       Double              Gallium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Gd_ppm_AES_HF        Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Gd_ppm_AES_HF_REE    Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Gd_ppm_ES            Number       Double              Gadolinium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Gd_ppm_MS_SF         Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Gd_ppm_NA            Number       Double              Gadolinium, in parts per million, by neutron activation.
    GdCV_pct_NA          Number       Double              Gadolinium, coefficient of variance, in percent, by neutron activation.
    Gd_ppm_WDX           Number       Double              Gadolinium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ge_ppm_AES_HF        Number       Double              Germanium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ge_ppm_EDX           Number       Double              Germanium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Ge_ppm_ES            Number       Double              Germanium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ge_ppm_ES_Q          Number       Double              Germanium, in parts per million, by quant direct-current arc emission spectrography.
    Ge_ppm_MS_HF         Number       Double              Germanium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ge_ppm_MS_SF         Number       Double              Germanium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Hf_ppm_ES            Number       Double              Hafnium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Hf_ppm_MS_HF         Number       Double              Hafnium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Hf_ppm_MS_SF         Number       Double              Hafnium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Hf_ppm_NA            Number       Double              Hafnium, in parts per million, by neutron activation.
    HfCV_pct_NA          Number       Double              Hafnium, coefficient of variance, in percent, by neutron activation.
    Hg_ppm_AA_CV         Number       Double              Mercury, in parts per million, by cold vapor-atomic absorption spectrophotometry.
    Hg_ppm_AA_TR         Number       Double              Mercury, in parts per million, by thermal release-atomic absorption spectrophotometry.
    Hg_ppm_AFS           Number       Double              Mercury, in parts per million, by atomic fluorescence spectrophotometry.
    Hg_ppm_ES            Number       Double              Mercury, in parts per million, by semi-quant direct-current arc emission spectrography.
    Hg_ppm_ES_Q          Number       Double              Mercury, in parts per million, by quant direct-current arc emission spectrography.
    Hg_ppm_NA            Number       Double              Mercury, in parts per million, by neutron activation.
    HgCV_pct_NA          Number       Double              Mercury, coefficient of variance, in percent, by neutron activation.
    Ho_ppm_AES_HF        Number       Double              Holmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ho_ppm_AES_HF_REE    Number       Double              Holmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Ho_ppm_ES            Number       Double              Holmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ho_ppm_MS_SF         Number       Double              Holmium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ho_ppm_NA            Number       Double              Holmium, in parts per million, by neutron activation.
    HoCV_pct_NA          Number       Double              Holmium, coefficient of variance, in percent, by neutron activation.
    Ho_ppm_WDX           Number       Double              Holmium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    I_ppm_WDX            Number       Double              Iodine, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    In_ppm_AA            Number       Double              Indium, in parts per million, by flame-atomic absorption spectrophotometry.
    In_ppm_AA_GF         Number       Double              Indium, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    In_ppm_ES            Number       Double              Indium, in parts per million, by semi-quant direct-current arc emission spectrography.
    In_ppm_ES_Q          Number       Double              Indium, in parts per million, by quant direct-current arc emission spectrography.
    In_ppm_MS_HF         Number       Double              Indium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    In_ppm_MS_SF         Number       Double              Indium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ir_ppm_ES            Number       Double              Iridium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ir_ppm_FA_ES         Number       Double              Iridium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Ir_ppm_FA_MS         Number       Double              Iridium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Ir_ppm_NA            Number       Double              Iridium, in parts per million, by neutron activation.
    IrCV_pct_NA          Number       Double              Iridium, coefficient of variance, in percent, by neutron activation.
    K_meqgL_AA_P_XC      Number       Double              Potassium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    K_meqgL_AA_P_XS      Number       Double              Potassium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    La_ppm_AES_AR        Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    La_ppm_AES_HF        Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    La_ppm_AES_HF_REE    Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    La_ppm_EDX           Number       Double              Lanthanum, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    La_ppm_ES            Number       Double              Lanthanum, in parts per million, by semi-quant direct-current arc emission spectrography.
    La_ppm_ES_Q          Number       Double              Lanthanum, in parts per million, by quant direct-current arc emission spectrography.
    La_ppm_MS_HF         Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    La_ppm_MS_SF         Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    La_ppm_NA            Number       Double              Lanthanum, in parts per million, by neutron activation.
    LaCV_pct_NA          Number       Double              Lanthanum, coefficient of variance, in percent, by neutron activation.
    La_ppm_WDX           Number       Double              Lanthanum, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Li_ppm_AA            Number       Double              Lithium, in parts per million, by flame-atomic absorption spectrophotometry.
    Li_ppm_AES_AR        Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Li_ppm_AES_HF        Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Li_ppm_AES_SF        Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Li_ppm_ES            Number       Double              Lithium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Li_ppm_ES_Q          Number       Double              Lithium, in parts per million, by quant direct-current arc emission spectrography.
    Li_ppm_MS_HF         Number       Double              Lithium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Lu_ppm_AES_HF_REE    Number       Double              Lutetium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Lu_ppm_ES            Number       Double              Lutetium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Lu_ppm_MS_HF         Number       Double              Lutetium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Lu_ppm_MS_SF         Number       Double              Lutetium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Lu_ppm_NA            Number       Double              Lutetium, in parts per million, by neutron activation.
    LuCV_pct_NA          Number       Double              Lutetium, coefficient of variance, in percent, by neutron activation.
    Lu_ppm_WDX           Number       Double              Lutetium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Mg_meqgL_AA_P_XC     Number       Double              Magnesium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    Mg_meqgL_AA_P_XS     Number       Double              Magnesium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    Mn_ppm_AA_P          Number       Double              Manganese, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Mo_ppm_AA            Number       Double              Molybdenum, in parts per million, by flame-atomic absorption spectrophotometry.
    Mo_ppm_AA_P          Number       Double              Molybdenum, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Mo_ppm_AES_P         Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Mo_ppm_AES_AR        Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Mo_ppm_AES_HF        Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mo_ppm_AES_IE        Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy-ion exchange.
    Mo_ppm_CM            Number       Double              Molybdenum, in parts per million, by colorimetry.
    Mo_ppm_EDX           Number       Double              Molybdenum, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Mo_ppm_ES            Number       Double              Molybdenum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Mo_ppm_ES_Q          Number       Double              Molybdenum, in parts per million, by quant direct-current arc emission spectrography.
    Mo_ppm_MS_HF         Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Mo_ppm_MS_SF         Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Mo_ppm_NA            Number       Double              Molybdenum, in parts per million, by neutron activation.
    Na_meqgL_AA_P_XC     Number       Double              Sodium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    Na_meqgL_AA_P_XS     Number       Double              Sodium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Rock_E_Traces_Nb_Sr is a table of trace element data - niobium through strontium - for rock samples located east of W147 degrees.

    FIELD_NAME           FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID               Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID             Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID               Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE             Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE            Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Nb_ppm_AES_AR        Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Nb_ppm_AES_HF        Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Nb_ppm_AES_IE        Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy-ion exchange.
    Nb_ppm_AES_SF        Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Nb_ppm_CM            Number       Double              Niobium, in parts per million, by colorimetry.
    Nb_ppm_EDX           Number       Double              Niobium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Nb_ppm_ES            Number       Double              Niobium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Nb_ppm_ES_Q          Number       Double              Niobium, in parts per million, by quant direct-current arc emission spectrography.
    Nb_ppm_MS_HF         Number       Double              Niobium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Nb_ppm_MS_SF         Number       Double              Niobium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Nb_ppm_WDX           Number       Double              Niobium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Nd_ppm_AES_HF        Number       Double              Neodymium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Nd_ppm_AES_HF_REE    Number       Double              Neodymium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Nd_ppm_EDX           Number       Double              Neodymium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Nd_ppm_ES            Number       Double              Neodymium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Nd_ppm_MS_SF         Number       Double              Neodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Nd_ppm_NA            Number       Double              Neodymium, in parts per million, by neutron activation.
    NdCV_pct_NA          Number       Double              Neodymium, coefficient of variance, in percent, by neutron activation.
    Nd_ppm_WDX           Number       Double              Neodymium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ni_ppm_AA            Number       Double              Nickel, in parts per million, by flame-atomic absorption spectrophotometry.
    Ni_ppm_AA_P          Number       Double              Nickel, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Ni_ppm_AES_P         Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Ni_ppm_AES_AR        Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ni_ppm_AES_HF        Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ni_ppm_AES_SF        Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ni_ppm_CM            Number       Double              Nickel, in parts per million, by colorimetry.
    Ni_ppm_EDX           Number       Double              Nickel, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Ni_ppm_ES            Number       Double              Nickel, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ni_ppm_ES_Q          Number       Double              Nickel, in parts per million, by quant direct-current arc emission spectrography.
    Ni_ppm_MS_HF         Number       Double              Nickel, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ni_ppm_NA            Number       Double              Nickel, in parts per million, by neutron activation.
    NiCV_pct_NA          Number       Double              Nickel, coefficient of variance, in percent, by neutron activation.
    Ni_ppm_WDX           Number       Double              Nickel, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Os_ppm_ES            Number       Double              Osmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pb_ppm_AA            Number       Double              Lead, in parts per million, by flame-atomic absorption spectrophotometry.
    Pb_ppm_AA_P          Number       Double              Lead, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Pb_ppm_AES_P         Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Pb_ppm_AES_AR        Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Pb_ppm_AES_HF        Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Pb_ppm_EDX           Number       Double              Lead, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Pb_ppm_ES            Number       Double              Lead, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pb_ppm_ES_Q          Number       Double              Lead, in parts per million, by quant direct-current arc emission spectrography.
    Pb_ppm_MS_HF         Number       Double              Lead, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Pb_ppm_MS_SF         Number       Double              Lead, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Pd_ppm_ES            Number       Double              Palladium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pd_ppm_FA_AA         Number       Double              Palladium, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Pd_ppm_FA_ES         Number       Double              Palladium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Pd_ppm_FA_MS         Number       Double              Palladium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    pH_SI_INST_P         Number       Double              pH, in standard units, by instrument after partial digestion.
    Pr_ppm_AES_HF        Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Pr_ppm_AES_HF_REE    Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Pr_ppm_ES            Number       Double              Praseodymium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pr_ppm_MS_SF         Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Pr_ppm_WDX           Number       Double              Praseodymium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Pt_ppm_ES            Number       Double              Platinum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pt_ppm_FA_AA         Number       Double              Platinum, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Pt_ppm_FA_ES         Number       Double              Platinum, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Pt_ppm_FA_MS         Number       Double              Platinum, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Rb_ppm_AA            Number       Double              Rubidium, in parts per million, by flame-atomic absorption spectrophotometry.
    Rb_ppm_AES_HF        Number       Double              Rubidium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Rb_ppm_EDX           Number       Double              Rubidium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Rb_ppm_ES            Number       Double              Rubidium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Rb_ppm_ES_Q          Number       Double              Rubidium, in parts per million, by quant direct-current arc emission spectrography.
    Rb_ppm_MS_HF         Number       Double              Rubidium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Rb_ppm_MS_SF         Number       Double              Rubidium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Rb_ppm_NA            Number       Double              Rubidium, in parts per million, by neutron activation.
    RbCV_pct_NA          Number       Double              Rubidium, coefficient of variance, in percent, by neutron activation.
    Rb_ppm_WDX           Number       Double              Rubidium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Re_ppm_ES            Number       Double              Rhenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Re_ppm_ES_Q          Number       Double              Rhenium, in parts per million, by quant direct-current arc emission spectrography.
    Re_ppm_MS_HF         Number       Double              Rhenium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Rh_ppm_ES            Number       Double              Rhodium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Rh_ppm_FA_AA         Number       Double              Rhodium, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Rh_ppm_FA_ES         Number       Double              Rhodium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Rh_ppm_FA_MS         Number       Double              Rhodium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Ru_ppm_ES            Number       Double              Ruthenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ru_ppm_FA_ES         Number       Double              Ruthenium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Ru_ppm_FA_MS         Number       Double              Ruthenium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    SatInd_pct_GV        Number       Double              Saturation index, in weight percent, by gravimetry.
    Sb_ppm_AA            Number       Double              Antimony, in parts per million, by flame-atomic absorption spectrophotometry.
    Sb_ppm_AA_P          Number       Double              Antimony, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Sb_ppm_AA_HG         Number       Double              Antimony, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    Sb_ppm_AES_P         Number       Double              Antimony, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Sb_ppm_AES_AR        Number       Double              Antimony, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sb_ppm_CM_P          Number       Double              Antimony, in parts per million, by colorimetry after partial digestion.
    Sb_ppm_EDX           Number       Double              Antimony, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Sb_ppm_ES            Number       Double              Antimony, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sb_ppm_ES_Q          Number       Double              Antimony, in parts per million, by quant direct-current arc emission spectrography.
    Sb_ppm_MS_HF         Number       Double              Antimony, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sb_ppm_MS_SF         Number       Double              Antimony, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sb_ppm_NA            Number       Double              Antimony, in parts per million, by neutron activation.
    SbCV_pct_NA          Number       Double              Antimony, coefficient of variance, in percent, by neutron activation.
    Sc_ppm_AES_AR        Number       Double              Scandium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sc_ppm_AES_HF        Number       Double              Scandium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sc_ppm_ES            Number       Double              Scandium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sc_ppm_ES_Q          Number       Double              Scandium, in parts per million, by quant direct-current arc emission spectrography.
    Sc_ppm_MS_HF         Number       Double              Scandium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sc_ppm_MS_SF         Number       Double              Scandium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sc_ppm_NA            Number       Double              Scandium, in parts per million, by neutron activation.
    ScCV_pct_NA          Number       Double              Scandium, coefficient of variance, in percent, by neutron activation.
    Se_ppm_AA_HG         Number       Double              Selenium, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    Se_ppm_AES_P         Number       Double              Selenium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Se_ppm_EDX           Number       Double              Selenium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Se_ppm_ES            Number       Double              Selenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Se_ppm_ES_Q          Number       Double              Selenium, in parts per million, by quant direct-current arc emission spectrography.
    Se_ppm_FL            Number       Double              Selenium, in parts per million, by fluorimetry.
    Se_ppm_MS_HF         Number       Double              Selenium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Se_ppm_NA            Number       Double              Selenium, in parts per million, by neutron activation.
    SeCV_pct_NA          Number       Double              Selenium, coefficient of variance, in percent, by neutron activation.
    Se_ppm_WDX           Number       Double              Selenium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Sm_ppm_AES_HF        Number       Double              Samarium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sm_ppm_AES_HF_REE    Number       Double              Samarium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Sm_ppm_ES            Number       Double              Samarium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sm_ppm_MS_SF         Number       Double              Samarium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sm_ppm_NA            Number       Double              Samarium, in parts per million, by neutron activation.
    SmCV_pct_NA          Number       Double              Samarium, coefficient of variance, in percent, by neutron activation.
    Sm_ppm_WDX           Number       Double              Samarium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Sn_ppm_AA            Number       Double              Tin, in parts per million, by flame-atomic absorption spectrophotometry.
    Sn_ppm_AES_AR        Number       Double              Tin, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sn_ppm_AES_HF        Number       Double              Tin, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sn_ppm_EDX           Number       Double              Tin, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Sn_ppm_ES            Number       Double              Tin, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sn_ppm_ES_Q          Number       Double              Tin, in parts per million, by quant direct-current arc emission spectrography.
    Sn_ppm_MS_HF         Number       Double              Tin, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sn_ppm_MS_SF         Number       Double              Tin, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sn_ppm_WDX           Number       Double              Tin, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    SO4_meqgL_CM_P       Number       Double              Sulfate, in milliequivalent grams per liter, by colorimetry after partial digestion.
    SpCon_uScm_INST_P    Number       Double              Specific conductivity, in microsiemens per centimeter, by instrument after partial digestion.
    SplWtFA_g_GV         Number       Double              Sample weight for fire assay analysis, in grams, by gravimetry.
    Sr_ppm_AA            Number       Double              Strontium, in parts per million, by flame-atomic absorption spectrophotometry.
    Sr_ppm_AES_AR        Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sr_ppm_AES_HF        Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sr_ppm_AES_SF        Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Sr_ppm_EDX           Number       Double              Strontium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Sr_ppm_ES            Number       Double              Strontium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sr_ppm_ES_Q          Number       Double              Strontium, in parts per million, by quant direct-current arc emission spectrography.
    Sr_ppm_MS_HF         Number       Double              Strontium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sr_ppm_NA            Number       Double              Strontium, in parts per million, by neutron activation.
    SrCV_pct_NA          Number       Double              Strontium, coefficient of variance, in percent, by neutron activation.
    Sr_ppm_WDX           Number       Double              Strontium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Rock_E_Traces_Ta_Zr is a table of trace element data - tantalum through zirconium - for rock samples located east of W147 degrees.

    FIELD_NAME          FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID              Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID            Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID              Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE            Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE           Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Ta_ppm_AA           Number       Double              Tantalum, in parts per million, by flame-atomic absorption spectrophotometry.
    Ta_ppm_AES_HF       Number       Double              Tantalum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ta_ppm_ES           Number       Double              Tantalum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ta_ppm_MS_HF        Number       Double              Tantalum, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ta_ppm_MS_SF        Number       Double              Tantalum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ta_ppm_NA           Number       Double              Tantalum, in parts per million, by neutron activation.
    TaCV_pct_NA         Number       Double              Tantalum, coefficient of variance, in percent, by neutron activation.
    Tb_ppm_AES_HF       Number       Double              Terbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Tb_ppm_AES_HF_REE   Number       Double              Terbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Tb_ppm_ES           Number       Double              Terbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tb_ppm_MS_HF        Number       Double              Terbium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Tb_ppm_MS_SF        Number       Double              Terbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tb_ppm_NA           Number       Double              Terbium, in parts per million, by neutron activation.
    TbCV_pct_NA         Number       Double              Terbium, coefficient of variance, in percent, by neutron activation.
    Tb_ppm_WDX          Number       Double              Terbium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Te_ppm_AA           Number       Double              Tellurium, in parts per million, by flame-atomic absorption spectrophotometry.
    Te_ppm_AA_GF        Number       Double              Tellurium, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    Te_ppm_AA_HG        Number       Double              Tellurium, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    Te_ppm_CM           Number       Double              Tellurium, in parts per million, by colorimetry.
    Te_ppm_ES           Number       Double              Tellurium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Te_ppm_ES_Q         Number       Double              Tellurium, in parts per million, by quant direct-current arc emission spectrography.
    Te_ppm_MS_HF        Number       Double              Tellurium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Th_ppm_AES_HF       Number       Double              Thorium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Th_ppm_CM           Number       Double              Thorium, in parts per million, by colorimetry.
    Th_ppm_DN           Number       Double              Thorium, in parts per million, by delayed neutron counting.
    ThCV_pct_DN         Number       Double              Thorium, coefficient of variance, in percent, by delayed neutron counting.
    Th_ppm_EDX          Number       Double              Thorium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Th_ppm_ES           Number       Double              Thorium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Th_ppm_MS_HF        Number       Double              Thorium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Th_ppm_MS_SF        Number       Double              Thorium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Th_ppm_NA           Number       Double              Thorium, in parts per million, by neutron activation.
    ThCV_pct_NA         Number       Double              Thorium, coefficient of variance, in percent, by neutron activation.
    Th_ppm_WDX          Number       Double              Thorium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Tl_ppm_AA           Number       Double              Thallium, in parts per million, by flame-atomic absorption spectrophotometry.
    Tl_ppm_AA_GF        Number       Double              Thallium, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    Tl_ppm_AES_AR       Number       Double              Thallium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Tl_ppm_ES           Number       Double              Thallium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tl_ppm_ES_Q         Number       Double              Thallium, in parts per million, by quant direct-current arc emission spectrography.
    Tl_ppm_MS_HF        Number       Double              Thallium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Tl_ppm_MS_SF        Number       Double              Thallium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tm_ppm_AES_HF_REE   Number       Double              Thulium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Tm_ppm_ES           Number       Double              Thulium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tm_ppm_MS_SF        Number       Double              Thulium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tm_ppm_NA           Number       Double              Thulium, in parts per million, by neutron activation.
    TmCV_pct_NA         Number       Double              Thulium, coefficient of variance, in percent, by neutron activation.
    Tm_ppm_WDX          Number       Double              Thulium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    U_ppm_AES_AR        Number       Double              Uranium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    U_ppm_AES_HF        Number       Double              Uranium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    U_ppm_DN            Number       Double              Uranium, in parts per million, by delayed neutron counting.
    UCV_pct_DN          Number       Double              Uranium, coefficient of variance, in percent, by delayed neutron counting.
    U_ppm_EDX           Number       Double              Uranium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    U_ppm_ES            Number       Double              Uranium, in parts per million, by semi-quant direct-current arc emission spectrography.
    U_ppm_FL            Number       Double              Uranium, in parts per million, by fluorimetry.
    U_ppm_MS_HF         Number       Double              Uranium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    U_ppm_MS_SF         Number       Double              Uranium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    U_ppm_NA            Number       Double              Uranium, in parts per million, by neutron activation.
    UCV_pct_NA          Number       Double              Uranium, coefficient of variance, in percent, by neutron activation.
    U_ppm_WDX           Number       Double              Uranium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ueq_ppm_GRC         Number       Double              Uranium, equivalents in parts per million, gamma ray counting.
    V_ppm_AA            Number       Double              Vanadium, in parts per million, by flame-atomic absorption spectrophotometry.
    V_ppm_AES_AR        Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    V_ppm_AES_HF        Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    V_ppm_AES_SF        Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    V_ppm_CM            Number       Double              Vanadium, in parts per million, by colorimetry.
    V_ppm_EDX           Number       Double              Vanadium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    V_ppm_ES            Number       Double              Vanadium, in parts per million, by semi-quant direct-current arc emission spectrography.
    V_ppm_ES_Q          Number       Double              Vanadium, in parts per million, by quant direct-current arc emission spectrography.
    V_ppm_MS_HF         Number       Double              Vanadium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    V_ppm_NA            Number       Double              Vanadium, in parts per million, by neutron activation.
    V_ppm_WDX           Number       Double              Vanadium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    W_ppm_AES_P         Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    W_ppm_AES_AR        Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    W_ppm_AES_HF        Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    W_ppm_AES_IE        Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy-ion exchange.
    W_ppm_CM            Number       Double              Tungsten, in parts per million, by colorimetry.
    W_ppm_CM_P          Number       Double              Tungsten, in parts per million, by colorimetry after partial digestion.
    W_ppm_EDX           Number       Double              Tungsten, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    W_ppm_ES            Number       Double              Tungsten, in parts per million, by semi-quant direct-current arc emission spectrography.
    W_ppm_ES_Q          Number       Double              Tungsten, in parts per million, by quant direct-current arc emission spectrography.
    W_ppm_MS_HF         Number       Double              Tungsten, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    W_ppm_MS_SF         Number       Double              Tungsten, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    W_ppm_NA            Number       Double              Tungsten, in parts per million, by neutron activation.
    WCV_pct_NA          Number       Double              Tungsten, coefficient of variance, in percent, by neutron activation.
    Y_ppm_AES_AR        Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Y_ppm_AES_HF        Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Y_ppm_AES_HF_REE    Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Y_ppm_AES_SF        Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Y_ppm_EDX           Number       Double              Yttrium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Y_ppm_ES            Number       Double              Yttrium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Y_ppm_ES_Q          Number       Double              Yttrium, in parts per million, by quant direct-current arc emission spectrography.
    Y_ppm_MS_HF         Number       Double              Yttrium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Y_ppm_MS_SF         Number       Double              Yttrium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Y_ppm_NA            Number       Double              Yttrium, in parts per million, by neutron activation.
    Y_ppm_WDX           Number       Double              Yttrium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Yb_ppm_AES_HF       Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Yb_ppm_AES_HF_REE   Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Yb_ppm_ES           Number       Double              Ytterbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Yb_ppm_ES_Q         Number       Double              Ytterbium, in parts per million, by quant direct-current arc emission spectrography.
    Yb_ppm_MS_HF        Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Yb_ppm_MS_SF        Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Yb_ppm_NA           Number       Double              Ytterbium, in parts per million, by neutron activation.
    YbCV_pct_NA         Number       Double              Ytterbium, coefficient of variance, in percent, by neutron activation.
    Yb_ppm_WDX          Number       Double              Ytterbium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Zn_ppm_AA           Number       Double              Zinc, in parts per million, by flame-atomic absorption spectrophotometry.
    Zn_ppm_AA_P         Number       Double              Zinc, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Zn_ppm_AES_P        Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Zn_ppm_AES_AR       Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Zn_ppm_AES_HF       Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Zn_ppm_AES_SF       Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Zn_ppm_EDX          Number       Double              Zinc, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Zn_ppm_ES           Number       Double              Zinc, in parts per million, by semi-quant direct-current arc emission spectrography.
    Zn_ppm_ES_Q         Number       Double              Zinc, in parts per million, by quant direct-current arc emission spectrography.
    Zn_ppm_MS_HF        Number       Double              Zinc, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Zn_ppm_NA           Number       Double              Zinc, in parts per million, by neutron activation.
    ZnCV_pct_NA         Number       Double              Zinc, coefficient of variance, in percent, by neutron activation.
    Zn_ppm_WDX          Number       Double              Zinc, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Zr_ppm_AES_AR       Number       Double              Zirconium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Zr_ppm_AES_HF       Number       Double              Zirconium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Zr_ppm_AES_SF       Number       Double              Zirconium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Zr_ppm_EDX          Number       Double              Zirconium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Zr_ppm_ES           Number       Double              Zirconium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Zr_ppm_ES_Q         Number       Double              Zirconium, in parts per million, by quant direct-current arc emission spectrography.
    Zr_ppm_MS_HF        Number       Double              Zirconium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Zr_ppm_MS_SF        Number       Double              Zirconium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Zr_ppm_NA           Number       Double              Zirconium, in parts per million, by neutron activation.
    ZrCV_pct_NA         Number       Double              Zirconium, coefficient of variance, in percent, by neutron activation.
    Zr_ppm_WDX          Number       Double              Zirconium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Rock_W_Geol is a table of spatial, geologic and descriptive attributes for rock samples located west of W146.99999 degrees.

    FIELD_NAME         FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID             Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID           Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID             Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    SUBMITTER          Text         75                  Name of the individual(s) who submitted the sample in a batch to the laboratory for analysis; not necessarily the sample collector.,
    PROJECT_NAME       Text         50                  Project name, at times derived from a project account number, of work group funded for the collection and analysis of submitted samples.
    DATE_SUBMITTED     Date/Time    n/a                 Date sample was submitted to Sample Control for initial database processing prior to sample prep and analysis.
    DATE_COLLECT       Date/Time    n/a                 Date the sample was collected, when recorded.
    COUNTRY            Text         20                  Country or marine body of water from where the sample was collected.
    STATE              Text         2                   Abbreviation of state from where the sample was collected.
    QUAD               Text         25                  Name of 1:250,000-scale quadrangle (1°x2° or 1°x3°) in which sample was collected.
    LATITUDE           Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE          Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    SPHEROID           Text         25                  Reference spheroid or ellipsoid, when recorded, for the latitude and longitude coordinates of the sample site.
    DATUM              Text         50                  Reference datum, when recorded, for the latitude and longitude coordinates of the sample site.
    LOCATE_DESC        Text         255                 Geographic information relating to the location of the sample site.
    DEPTH              Text         65                  Depth from the surface at which the sample was collected; units are specified by the submitter.
    SAMPLE_SOURCE      Text         40                  Physical setting or environment from which the sample was collected.
    METHOD_COLLECTED   Text         15                  Sample collection method: Single grab, composite, or channel.
    PRIMARY_CLASS      Text         30                  Primary classification of sample media.
    SECONDARY_CLASS    Text         15                  Secondary classification or subclass of sample media; attribute of PRIMARY_CLASS.
    SPECIFIC_NAME      Text         30                  A specific name for the sample media collected; attribute of PRIMARY_CLASS and/or SECONDARY_CLASS.
    SAMPLE_COMMENT     Text         255                 Attribute used to modify PRIMARY_CLASS, SECONDARY_CLASS, or SPECIFIC_NAME; data is not derived from sample codes.
    ADDL_ATTR          Text         255                 Additional attributes used to modify PRIMARY_CLASS, SECONDARY_CLASS, or SPECIFIC_NAME; derived from sample codes in fields of original databases that do not have equivalent fields in the NGDB.
    GEOLOGIC_AGE       Text         60                  Age or range of ages from the Geological Time Scale for the collected sample.
    STRATIGRAPHY       Text         255                 Name of the stratigraphic unit from which the sample was collected. When present, values are as given by the sample submitter and may represent either a formal name, an informal name, or geologic map unit abbreviation.
    MINERALIZATION     Text         35                  An indication of mineralization or mineralization types as provided by the sample submitter.
    ALTERATION         Text         50                  An indication of the presence or type of alteration noted in the sample by the submitter.
    IGNEOUS_FORM       Text         25                  An indication of the igneous setting from which the sample was collected.
    METAMORPHISM       Text         15                  An indication of the type of metamorphic setting from which the rock was collected.
    FACIES_GRADE       Text         35                  Metamorphic facies or grade as provided by the sample submitter.
    SOURCE_ROCK        Text         12                  Used in the rock database to identify the precursor rock, igneous or sedimentary, for metamorphic rocks.
    DEPOSIT_ENVIRON    Text         15                  Original environment of deposition for sedimentary rocks.
    PREP               Text         255                 Description of the sample preparation methods used.
    MESH_PORE_SIZE     Text         60                  Sieve size used in field sampling or laboratory preparation to fractionate the sample.
    PREVIOUS_JOB_ID    Text         20                  Original NGDB batch number (JOB_ID) of a USGS resubmitted sample that has been given a new batch number upon resubmittal for further analysis.
    PREVIOUS_LAB_ID    Text         20                  Original NGDB LAB_ID of a USGS resubmitted sample that has been given a new lab number upon resubmittal for further analysis.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Rock_W_Majors is a table of chemical "whole rock" data for rock samples located west of W146.99999 degrees.

    FIELD_NAME             FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID                 Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID               Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID                 Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE               Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE              Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    AcidInsol_pct_GV       Number       Double              Acid-insoluble residue, in weight percent, by gravimetry.
    Al2O3_pct_AES_AR       Number       Double              Aluminum, as aluminum trioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Al2O3_pct_AES_HF       Number       Double              Aluminum, as aluminum trioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Al2O3_pct_AES_SF       Number       Double              Aluminum, as aluminum trioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Al2O3_pct_CM           Number       Double              Aluminum, as aluminum trioxide, in weight percent, by colorimetry.
    Al2O3_pct_ES           Number       Double              Aluminum, as aluminum trioxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    Al2O3_pct_ES_Q         Number       Double              Aluminum, as aluminum trioxide, in weight percent, by quant direct-current arc emission spectrography.
    Al2O3_pct_GV           Number       Double              Aluminum, as aluminum trioxide, in weight percent, by gravimetry.
    Al2O3_pct_MS_HF        Number       Double              Aluminum, as aluminum trioxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Al2O3_pct_WDX          Number       Double              Aluminum, as aluminum trioxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ash_pct_GV             Number       Double              Ash, in weight percent, by gravimetry.
    C_pct_CB               Number       Double              Total carbon, in weight percent, by combustion.
    CO2_pct_TT             Number       Double              Carbon dioxide, in weight percent, by titration.
    CO2_pct_VOL            Number       Double              Carbon dioxide, in weight percent, by a volumetric method.
    CCO3_pct_TT            Number       Double              Carbonate carbon, in weight percent, by titration.
    CCO3_pct_VOL           Number       Double              Carbonate carbon, in weight percent, by a volumetric method.
    COrg_pct_CP            Number       Double              Organic carbon, in weight percent, by computation.
    CaO_pct_AA             Number       Double              Calcium, as calcium oxide, in weight percent, by flame-atomic absorption spectrophotometry.
    CaO_pct_AES_AR         Number       Double              Calcium, as calcium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    CaO_pct_AES_HF         Number       Double              Calcium, as calcium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    CaO_pct_AES_SF         Number       Double              Calcium, as calcium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    CaO_pct_CM             Number       Double              Calcium, as calcium oxide, in weight percent, by colorimetry.
    CaO_pct_ES             Number       Double              Calcium, as calcium oxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    CaO_pct_ES_Q           Number       Double              Calcium, as calcium oxide, in weight percent, by quant direct-current arc emission spectrography.
    CaO_pct_GV             Number       Double              Calcium, as calcium oxide, in weight percent, by gravimetry.
    CaO_pct_MS_HF          Number       Double              Calcium, as calcium oxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    CaO_pct_NA             Number       Double              Calcium, as calcium oxide, in weight percent, by neutron activation.
    CaOCV_pct_NA           Number       Double              Calcium, as calcium oxide, coefficient of variance, in percent, by neutron activation.
    CaO_pct_WDX            Number       Double              Calcium, as calcium oxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Cl_pct_CM              Number       Double              Chlorine, in weight percent, by colorimetry.
    Cl_pct_IC              Number       Double              Chloride, in weight percent, by ion chromatography.
    Cl_pct_ISE             Number       Double              Chlorine, in weight percent, by ion specific electrode.
    Cl_pct_NA              Number       Double              Chlorine, in weight percent, by neutron activation.
    Cl_pct_WDX             Number       Double              Chlorine, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    DensB_gcc_GV           Number       Double              Bulk density, in grams per cubic centimeter, by gravimetry.
    DensP_gcc_GV           Number       Double              Powder density, in grams per cubic centimeter, by gravimetry.
    F_pct_CM               Number       Double              Fluorine, in weight percent, by colorimetry.
    F_pct_ISE              Number       Double              Fluorine, in weight percent, by ion specific electrode.
    F_pct_NA               Number       Double              Fluorine, in weight percent, by neutron activation.
    Fe2O3_pct_AES_SF       Number       Double              Iron, as iron trioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Fe2O3_pct_CM           Number       Double              Iron, as iron trioxide, in weight percent, by colorimetry.
    Fe2O3_pct_TT           Number       Double              Iron, as iron trioxide, in weight percent, by titration.
    FeO_pct_TT             Number       Double              Ferrous oxide, by titration.
    FeTO3_pct_AA           Number       Double              Iron, as total iron oxide, in weight percent, by flame-atomic absorption spectrophotometry.
    FeTO3_pct_AES_AR       Number       Double              Iron, as total iron oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    FeTO3_pct_AES_HF       Number       Double              Iron, as total iron oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    FeTO3_pct_AES_SF       Number       Double              Iron, as total iron oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    FeTO3_pct_CM           Number       Double              Iron, as total iron oxide, in weight percent, by colorimetry.
    FeTO3_pct_ES           Number       Double              Iron, as total iron oxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    FeTO3_pct_ES_Q         Number       Double              Iron, as total iron oxide, in weight percent, by quant direct-current arc emission spectrography.
    FeTO3_pct_MS_HF        Number       Double              Iron, as total iron oxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    FeTO3_pct_NA           Number       Double              Iron, as total iron oxide, in weight percent, by neutron activation.
    FeTO3CV_pct_NA         Number       Double              Iron, as total iron oxide, coefficient of variance, in weight percent, by neutron activation.
    FeTO3_pct_WDX          Number       Double              Iron, as total iron oxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Gas_pct_GV             Number       Double              Gas, in weight percent, by gravimetry.
    H_pct_CB               Number       Double              Hydrogen, in weight percent, by combustion.
    H2O_pct_GV             Number       Double              Total water, in weight percent, by gravimetry.
    H2Om_pct_GV            Number       Double              Moisture, in weight percent, by gravimetry.
    H2O_pct_TT             Number       Double              Total water, in weight percent, by titration.
    H2Ob_pct_GV            Number       Double              Bound water, in weight percent, by gravimetry.
    H2Ob_pct_TT            Number       Double              Bound water, in weight percent, by titration.
    H2Oa_galton_GV         Number       Double              Water, in gallons per ton, by gravimetry.
    HCsol_pct_GV           Number       Double              Soluble hydrocarbons, in weight percent, by gravimetry.
    K2O_pct_AA             Number       Double              Potassium, as potassium oxide, in weight percent, by flame-atomic absorption spectrophotometry.
    K2O_pct_AA_FE          Number       Double              Potassium, as potassium oxide, in weight percent, by flame emission spectrophotometry.
    K2O_pct_AES_AR         Number       Double              Potassium, as potassium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    K2O_pct_AES_HF         Number       Double              Potassium, as potassium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    K2O_pct_AES_SF         Number       Double              Potassium, as potassium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    K2O_pct_ES             Number       Double              Potassium, as potassium oxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    K2O_pct_ES_Q           Number       Double              Potassium, as potassium oxide, in weight percent, by quant direct-current arc emission spectrography.
    K2O_pct_MS_HF          Number       Double              Potassium, as potassium oxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    K2O_pct_NA             Number       Double              Potassium, as potassium oxide, in weight percent, by neutron activation.
    K2OCV_pct_NA           Number       Double              Potassium, as potassium oxide, coefficient of variance, in percent, by neutron activation.
    K2O_pct_WDX            Number       Double              Potassium, as potassium oxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    LOI_pct_GV             Number       Double              Loss on ignition, in weight percent, by gravimetry.
    MgO_pct_AA             Number       Double              Magnesium, as magnesium oxide, in weight percent, by flame-atomic absorption spectrophotometry.
    MgO_pct_AES_AR         Number       Double              Magnesium, as magnesium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    MgO_pct_AES_HF         Number       Double              Magnesium, as magnesium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    MgO_pct_AES_SF         Number       Double              Magnesium, as magnesium oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    MgO_pct_CM             Number       Double              Magnesium, as magnesium oxide, in weight percent, by colorimetry.
    MgO_pct_ES             Number       Double              Magnesium, as magnesium oxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    MgO_pct_ES_Q           Number       Double              Magnesium, as magnesium oxide, in weight percent, by quant direct-current arc emission spectrography.
    MgO_pct_GV             Number       Double              Magnesium, as magnesium oxide, in weight percent, by gravimetry.
    MgO_pct_MS_HF          Number       Double              Magnesium, as magnesium oxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    MgO_pct_WDX            Number       Double              Magnesium, as magnesium oxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    MnO_pct_AA             Number       Double              Manganese, as manganese oxide, in weight percent, by flame-atomic absorption spectrophotometry.
    MnO_pct_AA_P           Number       Double              Manganese, as manganese oxide, in weight percent, by flame-atomic absorption spectrophotometry after partial digestion.
    MnO_pct_AES_AR         Number       Double              Manganese, as manganese oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    MnO_pct_AES_HF         Number       Double              Manganese, as manganese oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    MnO_pct_AES_SF         Number       Double              Manganese, as manganese oxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    MnO_pct_CM             Number       Double              Manganese, as manganese oxide, in weight percent, by colorimetry.
    MnO_pct_ES             Number       Double              Manganese, as manganese oxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    MnO_pct_ES_Q           Number       Double              Manganese, as manganese oxide, in weight percent, by quant direct-current arc emission spectrography.
    MnO_pct_MS_HF          Number       Double              Manganese, as manganese oxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    MnO_pct_NA             Number       Double              Manganese, as manganese oxide, in weight percent, by neutron activation.
    MnO_pct_WDX            Number       Double              Manganese, as manganese oxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    N_pct_CB               Number       Double              Nitrogen, in weight percent, by combustion.
    Na2O_pct_AA            Number       Double              Sodium, as sodium dioxide, in weight percent, by flame-atomic absorption spectrophotometry.
    Na2O_pct_AA_FE         Number       Double              Sodium, as sodium dioxide, in weight percent, by flame emission spectrophotometry.
    Na2O_pct_AES_AR        Number       Double              Sodium, as sodium dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Na2O_pct_AES_HF        Number       Double              Sodium, as sodium dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Na2O_pct_AES_SF        Number       Double              Sodium, as sodium dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Na2O_pct_ES            Number       Double              Sodium, as sodium dioxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    Na2O_pct_ES_Q          Number       Double              Sodium, as sodium dioxide, in weight percent, by quant direct-current arc emission spectrography.
    Na2O_pct_MS_HF         Number       Double              Sodium, as sodium dioxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Na2O_pct_NA            Number       Double              Sodium, as sodium dioxide, in weight percent, by neutron activation.
    Na2OCV_pct_NA          Number       Double              Sodium, as sodium dioxide, coefficient of variance, in percent, by neutron activation.
    Na2O_pct_WDX           Number       Double              Sodium, as sodium dioxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Oil_pct_GV             Number       Double              Oil, in weight percent, by gravimetry.
    OilA_galton_GV         Number       Double              Oil, in gallons per ton, by gravimetry.
    OilG_gcc_GV            Number       Double              Oil gravity, in grams per cubic centimeter, by gravimetry.
    P2O5_pct_AES_AR        Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    P2O5_pct_AES_HF        Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    P2O5_pct_AES_SF        Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    P2O5_pct_CM            Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by colorimetry.
    P2O5_pct_CM_P          Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by colorimetry after partial digestion.
    P2O5_pct_ES            Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    P2O5_pct_ES_Q          Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by quant direct-current arc emission spectrography.
    P2O5_pct_MS_HF         Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    P2O5_pct_WDX           Number       Double              Phosphorus, as phosphorus pentoxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    S_pct_AES_HF           Number       Double              Total sulfur, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    S_pct_CB               Number       Double              Total sulfur, in weight percent, by combustion.
    S_pct_WDX              Number       Double              Total sulfur, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    SO3_pct_CB             Number       Double              Acid-soluble sulfate, in weight percent, by combustion.
    SO3_pct_WDX            Number       Double              Acid-soluble sulfate, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    SO4_pct_CB             Number       Double              Sulfate, in weight percent, by combustion.
    SOrg_pct_CP            Number       Double              Organic sulfur, in weight percent, by computation.
    SPyr_pct_CP            Number       Double              Pyritic sulfur, in weight percent, by computation.
    Sulfide_pct_CB         Number       Double              Sulfide, in weight percent, by combustion.
    Sulfide_pct_TB         Number       Double              Sulfide, in weight percent, by turbidimetry.
    SiO2_pct_AES_HF        Number       Double              Silicon, as silicon dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    SiO2_pct_AES_SF        Number       Double              Silicon, as silicon dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    SiO2_pct_CM            Number       Double              Silicon, as silicon dioxide, in weight percent, by colorimetry.
    SiO2_pct_ES            Number       Double              Silicon, as silicon dioxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    SiO2_pct_ES_Q          Number       Double              Silicon, as silicon dioxide, in weight percent, by quant direct-current arc emission spectrography.
    SiO2_pct_GV            Number       Double              Silicon, as silicon dioxide, in weight percent, by gravimetry.
    SiO2_pct_MS_SF         Number       Double              Silicon, as silicon dioxide, in weight percent, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    SiO2_pct_WDX           Number       Double              Silicon, as silicon dioxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    TiO2_pct_AES_AR        Number       Double              Titanium, as titanium dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    TiO2_pct_AES_HF        Number       Double              Titanium, as titanium dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    TiO2_pct_AES_SF        Number       Double              Titanium, as titanium dioxide, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    TiO2_pct_CM            Number       Double              Titanium, as titanium dioxide, in weight percent, by colorimetry.
    TiO2_pct_ES            Number       Double              Titanium, as titanium dioxide, in weight percent, by semi-quant direct-current arc emission spectrography.
    TiO2_pct_ES_Q          Number       Double              Titanium, as titanium dioxide, in weight percent, by quant direct-current arc emission spectrography.
    TiO2_pct_MS_HF         Number       Double              Titanium, as titanium dioxide, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    TiO2_pct_WDX           Number       Double              Titanium, as titanium dioxide, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Total_pct_CP           Number       Double              Total, calculated, in weight percent, by computation.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Rock_W_Traces_Ag_Cr is a table of trace element data - silver through chromium - for rock samples located west of W146.99999 degrees.

    FIELD_NAME            FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID                Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID              Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID                Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE              Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE             Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Ag_ppm_AA             Number       Double              Silver, in parts per million, by flame-atomic absorption spectrophotometry.
    Ag_ppm_AA_P           Number       Double              Silver, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Ag_ppm_AES_P          Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Ag_ppm_AES_AR         Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ag_ppm_AES_HF         Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ag_ppm_EDX            Number       Double              Silver, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Ag_ppm_ES             Number       Double              Silver, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ag_ppm_ES_Q           Number       Double              Silver, in parts per million, by quant direct-current arc emission spectrography.
    Ag_ppm_FA_AA          Number       Double              Silver, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Ag_ppm_MS_HF          Number       Double              Silver, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ag_ppm_MS_SF          Number       Double              Silver, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    As_ppm_AA             Number       Double              Arsenic, in parts per million, by flame-atomic absorption spectrophotometry.
    As_ppm_AA_P           Number       Double              Arsenic, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    As_ppm_AA_HG          Number       Double              Arsenic, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    As_ppm_AES_P          Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    As_ppm_AES_AR         Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    As_ppm_AES_HF         Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    As_ppm_CM_P           Number       Double              Arsenic, in parts per million, by colorimetry after partial digestion.
    As_ppm_EDX            Number       Double              Arsenic, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    As_ppm_ES             Number       Double              Arsenic, in parts per million, by semi-quant direct-current arc emission spectrography.
    As_ppm_ES_Q           Number       Double              Arsenic, in parts per million, by quant direct-current arc emission spectrography.
    As_ppm_MS_HF          Number       Double              Arsenic, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    As_ppm_MS_SF          Number       Double              Arsenic, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    As_ppm_NA             Number       Double              Arsenic, in parts per million, by neutron activation.
    AsCV_pct_NA           Number       Double              Arsenic, coefficient of variance, in percent, by neutron activation.
    Au_ppm_AA             Number       Double              Gold, in parts per million, by flame-atomic absorption spectrophotometry.
    Au_ppm_AA_GF          Number       Double              Gold, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    Au_ppm_AES_P          Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Au_ppm_AES_AR         Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Au_ppm_AES_HF         Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Au_ppm_ES             Number       Double              Gold, in parts per million, by semi-quant direct-current arc emission spectrography.
    Au_ppm_ES_Q           Number       Double              Gold, in parts per million, by quant direct-current arc emission spectrography.
    Au_ppm_FA_AA          Number       Double              Gold, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Au_ppm_FA_DC          Number       Double              Gold, in parts per million, by fire assay and direct current plasma-atomic emission spectroscopy.
    Au_ppm_FA_ES          Number       Double              Gold, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Au_ppm_FA_MS          Number       Double              Gold, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Au_ppm_MS_HF          Number       Double              Gold, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Au_ppm_NA             Number       Double              Gold, in parts per million, by neutron activation.
    AuCV_pct_NA           Number       Double              Gold, coefficient of variance, in percent, by neutron activation.
    SplWtAu_g_GV          Number       Double              Sample weight for gold analysis, in grams, by gravimetry.
    B_ppm_AES_AR          Number       Double              Boron, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    B_ppm_AES_SF          Number       Double              Boron, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    B_ppm_CM              Number       Double              Boron, in parts per million, by colorimetry.
    B_ppm_ES              Number       Double              Boron, in parts per million, by semi-quant direct-current arc emission spectrography.
    B_ppm_ES_P            Number       Double              Boron, in parts per million, by semi-quant direct-current arc emission spectrography after partial digestion.
    B_ppm_ES_Q            Number       Double              Boron, in parts per million, by quant direct-current arc emission spectrography.
    Ba_ppm_AES_AR         Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ba_ppm_AES_HF         Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ba_ppm_AES_SF         Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ba_ppm_CM             Number       Double              Barium, in parts per million, by colorimetry.
    Ba_ppm_EDX            Number       Double              Barium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Ba_ppm_ES             Number       Double              Barium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ba_ppm_ES_Q           Number       Double              Barium, in parts per million, by quant direct-current arc emission spectrography.
    Ba_ppm_GV             Number       Double              Barium, in parts per million, by gravimetry.
    Ba_ppm_MS_HF          Number       Double              Barium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ba_ppm_MS_SF          Number       Double              Barium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ba_ppm_NA             Number       Double              Barium, in parts per million, by neutron activation.
    BaCV_pct_NA           Number       Double              Barium, coefficient of variance, in percent, by neutron activation.
    Ba_ppm_WDX            Number       Double              Barium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Be_ppm_AA             Number       Double              Beryllium, in parts per million, by flame-atomic absorption spectrophotometry.
    Be_ppm_AES_AR         Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Be_ppm_AES_HF         Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Be_ppm_AES_SF         Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Be_ppm_ES             Number       Double              Beryllium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Be_ppm_ES_Q           Number       Double              Beryllium, in parts per million, by quant direct-current arc emission spectrography.
    Be_ppm_MS_HF          Number       Double              Beryllium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Bi_ppm_AA             Number       Double              Bismuth, in parts per million, by flame-atomic absorption spectrophotometry.
    Bi_ppm_AA_P           Number       Double              Bismuth, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Bi_ppm_AES_P          Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Bi_ppm_AES_AR         Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Bi_ppm_AES_HF         Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Bi_ppm_EDX            Number       Double              Bismuth, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Bi_ppm_ES             Number       Double              Bismuth, in parts per million, by semi-quant direct-current arc emission spectrography.
    Bi_ppm_ES_Q           Number       Double              Bismuth, in parts per million, by quant direct-current arc emission spectrography.
    Bi_ppm_MS_HF          Number       Double              Bismuth, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Bi_ppm_MS_SF          Number       Double              Bismuth, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Br_ppm_CM             Number       Double              Bromine, in parts per million, by colorimetry.
    Br_ppm_EDX            Number       Double              Bromine, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Br_ppm_NA             Number       Double              Bromine, in parts per million, by neutron activation.
    Br_ppm_WDX            Number       Double              Bromine, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ca_meqgL_AA_P_XC      Number       Double              Calcium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    Ca_meqgL_AA_P_XS      Number       Double              Calcium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    Cd_ppm_AA             Number       Double              Cadmium, in parts per million, by flame-atomic absorption spectrophotometry.
    Cd_ppm_AA_P           Number       Double              Cadmium, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Cd_ppm_AES_P          Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cd_ppm_AES_AR         Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cd_ppm_AES_HF         Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cd_ppm_EDX            Number       Double              Cadmium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Cd_ppm_ES             Number       Double              Cadmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cd_ppm_ES_Q           Number       Double              Cadmium, in parts per million, by quant direct-current arc emission spectrography.
    Cd_ppm_MS_HF          Number       Double              Cadmium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cd_ppm_MS_SF          Number       Double              Cadmium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Cd_ppm_NA             Number       Double              Cadmium, in parts per million, by neutron activation.
    CdCV_pct_NA           Number       Double              Cadmium, coefficient of variance, in percent, by neutron activation.
    Ce_ppm_AES_AR         Number       Double              Cerium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ce_ppm_AES_HF         Number       Double              Cerium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ce_ppm_AES_HF_REE     Number       Double              Cerium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Ce_ppm_EDX            Number       Double              Cerium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Ce_ppm_ES             Number       Double              Cerium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ce_ppm_ES_Q           Number       Double              Cerium, in parts per million, by quant direct-current arc emission spectrography.
    Ce_ppm_MS_HF          Number       Double              Cerium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ce_ppm_MS_SF          Number       Double              Cerium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ce_ppm_NA             Number       Double              Cerium, in parts per million, by neutron activation.
    CeCV_pct_NA           Number       Double              Cerium, coefficient of variance, in percent, by neutron activation.
    Ce_ppm_WDX            Number       Double              Cerium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    CEC_meqg100g_CP_P     Number       Double              Cation exchange capacity, in milliequivalent-grams per100 grams, by computation after partial digestion.
    Cl_meqgL_ISE_P        Number       Double              Chloride, in milliequivalent-grams per liter, by ion specific electrode after partial digestion.
    Co_ppm_AA             Number       Double              Cobalt, in parts per million, by flame-atomic absorption spectrophotometry.
    Co_ppm_AA_P           Number       Double              Cobalt, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Co_ppm_AES_P          Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Co_ppm_AES_AR         Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Co_ppm_AES_HF         Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Co_ppm_CM             Number       Double              Cobalt, in parts per million, by colorimetry.
    Co_ppm_ES             Number       Double              Cobalt, in parts per million, by semi-quant direct-current arc emission spectrography.
    Co_ppm_ES_Q           Number       Double              Cobalt, in parts per million, by quant direct-current arc emission spectrography.
    Co_ppm_MS_HF          Number       Double              Cobalt, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Co_ppm_MS_SF          Number       Double              Cobalt, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Co_ppm_NA             Number       Double              Cobalt, in parts per million, by neutron activation.
    CoCV_pct_NA           Number       Double              Cobalt, coefficient of variance, in percent, by neutron activation.
    Cr_ppm_AA             Number       Double              Chromium, in parts per million, by flame-atomic absorption spectrophotometry.
    Cr_ppm_AES_P          Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cr_ppm_AES_AR         Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cr_ppm_AES_HF         Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cr_ppm_AES_SF         Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Cr_ppm_CM             Number       Double              Chromium, in parts per million, by colorimetry.
    Cr_ppm_EDX            Number       Double              Chromium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Cr_ppm_ES             Number       Double              Chromium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cr_ppm_ES_Q           Number       Double              Chromium, in parts per million, by quant direct-current arc emission spectrography.
    Cr_ppm_MS_HF          Number       Double              Chromium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cr_ppm_NA             Number       Double              Chromium, in parts per million, by neutron activation.
    CrCV_pct_NA           Number       Double              Chromium, coefficient of variance, in percent, by neutron activation.
    Cr_ppm_WDX            Number       Double              Chromium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Rock_W_Traces_Cs_Na is a table of trace element data - cesium through sodium - for rock samples located west of W146.99999 degrees.

    FIELD_NAME           FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID               Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID             Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID               Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE             Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE            Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Cs_ppm_AA            Number       Double              Cesium, in parts per million, by flame-atomic absorption spectrophotometry.
    Cs_ppm_EDX           Number       Double              Cesium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Cs_ppm_ES            Number       Double              Cesium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cs_ppm_MS_HF         Number       Double              Cesium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cs_ppm_MS_SF         Number       Double              Cesium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Cs_ppm_NA            Number       Double              Cesium, in parts per million, by neutron activation.
    CsCV_pct_NA          Number       Double              Cesium, coefficient of variance, in percent, by neutron activation.
    Cu_ppm_AA            Number       Double              Copper, in parts per million, by flame-atomic absorption spectrophotometry.
    Cu_ppm_AA_P          Number       Double              Copper, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Cu_ppm_AES_P         Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cu_ppm_AES_AR        Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cu_ppm_AES_HF        Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cu_ppm_AES_SF        Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Cu_ppm_EDX           Number       Double              Copper, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Cu_ppm_ES            Number       Double              Copper, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cu_ppm_ES_Q          Number       Double              Copper, in parts per million, by quant direct-current arc emission spectrography.
    Cu_ppm_MS_HF         Number       Double              Copper, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cu_ppm_NA            Number       Double              Copper, in parts per million, by neutron activation.
    CuCV_pct_NA          Number       Double              Copper, coefficient of variance, in percent, by neutron activation.
    Dy_ppm_AES_HF        Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Dy_ppm_AES_HF_REE    Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Dy_ppm_ES            Number       Double              Dysprosium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Dy_ppm_MS_SF         Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Dy_ppm_NA            Number       Double              Dysprosium, in parts per million, by neutron activation.
    Dy_ppm_WDX           Number       Double              Dysprosium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Er_ppm_AES_HF        Number       Double              Erbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Er_ppm_AES_HF_REE    Number       Double              Erbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Er_ppm_ES            Number       Double              Erbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Er_ppm_MS_SF         Number       Double              Erbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Er_ppm_WDX           Number       Double              Erbium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Eu_ppm_AES_HF        Number       Double              Europium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Eu_ppm_AES_HF_REE    Number       Double              Europium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Eu_ppm_ES            Number       Double              Europium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Eu_ppm_MS_SF         Number       Double              Europium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Eu_ppm_NA            Number       Double              Europium, in parts per million, by neutron activation.
    EuCV_pct_NA          Number       Double              Europium, in parts per million, by neutron activation.
    Eu_ppm_WDX           Number       Double              Europium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Fe_ppm_AA_P          Number       Double              Iron, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Ga_ppm_AES_AR        Number       Double              Gallium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ga_ppm_AES_HF        Number       Double              Gallium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ga_ppm_EDX           Number       Double              Gallium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Ga_ppm_ES            Number       Double              Gallium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ga_ppm_ES_Q          Number       Double              Gallium, in parts per million, by quant direct-current arc emission spectrography.
    Ga_ppm_MS_HF         Number       Double              Gallium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ga_ppm_MS_SF         Number       Double              Gallium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Gd_ppm_AES_HF        Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Gd_ppm_AES_HF_REE    Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Gd_ppm_ES            Number       Double              Gadolinium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Gd_ppm_MS_SF         Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Gd_ppm_NA            Number       Double              Gadolinium, in parts per million, by neutron activation.
    GdCV_pct_NA          Number       Double              Gadolinium, coefficient of variance, in percent, by neutron activation.
    Gd_ppm_WDX           Number       Double              Gadolinium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ge_ppm_AES_HF        Number       Double              Germanium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ge_ppm_EDX           Number       Double              Germanium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Ge_ppm_ES            Number       Double              Germanium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ge_ppm_ES_Q          Number       Double              Germanium, in parts per million, by quant direct-current arc emission spectrography.
    Ge_ppm_MS_HF         Number       Double              Germanium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ge_ppm_MS_SF         Number       Double              Germanium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Hf_ppm_ES            Number       Double              Hafnium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Hf_ppm_MS_HF         Number       Double              Hafnium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Hf_ppm_MS_SF         Number       Double              Hafnium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Hf_ppm_NA            Number       Double              Hafnium, in parts per million, by neutron activation.
    HfCV_pct_NA          Number       Double              Hafnium, coefficient of variance, in percent, by neutron activation.
    Hg_ppm_AA_CV         Number       Double              Mercury, in parts per million, by cold vapor-atomic absorption spectrophotometry.
    Hg_ppm_AA_TR         Number       Double              Mercury, in parts per million, by thermal release-atomic absorption spectrophotometry.
    Hg_ppm_AFS           Number       Double              Mercury, in parts per million, by atomic fluorescence spectrophotometry.
    Hg_ppm_ES            Number       Double              Mercury, in parts per million, by semi-quant direct-current arc emission spectrography.
    Hg_ppm_ES_Q          Number       Double              Mercury, in parts per million, by quant direct-current arc emission spectrography.
    Hg_ppm_NA            Number       Double              Mercury, in parts per million, by neutron activation.
    HgCV_pct_NA          Number       Double              Mercury, coefficient of variance, in percent, by neutron activation.
    Ho_ppm_AES_HF        Number       Double              Holmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ho_ppm_AES_HF_REE    Number       Double              Holmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Ho_ppm_ES            Number       Double              Holmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ho_ppm_MS_SF         Number       Double              Holmium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ho_ppm_NA            Number       Double              Holmium, in parts per million, by neutron activation.
    HoCV_pct_NA          Number       Double              Holmium, coefficient of variance, in percent, by neutron activation.
    Ho_ppm_WDX           Number       Double              Holmium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    I_ppm_WDX            Number       Double              Iodine, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    In_ppm_AA            Number       Double              Indium, in parts per million, by flame-atomic absorption spectrophotometry.
    In_ppm_AA_GF         Number       Double              Indium, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    In_ppm_ES            Number       Double              Indium, in parts per million, by semi-quant direct-current arc emission spectrography.
    In_ppm_ES_Q          Number       Double              Indium, in parts per million, by quant direct-current arc emission spectrography.
    In_ppm_MS_HF         Number       Double              Indium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    In_ppm_MS_SF         Number       Double              Indium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ir_ppm_ES            Number       Double              Iridium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ir_ppm_FA_ES         Number       Double              Iridium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Ir_ppm_FA_MS         Number       Double              Iridium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Ir_ppm_NA            Number       Double              Iridium, in parts per million, by neutron activation.
    IrCV_pct_NA          Number       Double              Iridium, coefficient of variance, in percent, by neutron activation.
    K_meqgL_AA_P_XC      Number       Double              Potassium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    K_meqgL_AA_P_XS      Number       Double              Potassium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    La_ppm_AES_AR        Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    La_ppm_AES_HF        Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    La_ppm_AES_HF_REE    Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    La_ppm_EDX           Number       Double              Lanthanum, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    La_ppm_ES            Number       Double              Lanthanum, in parts per million, by semi-quant direct-current arc emission spectrography.
    La_ppm_ES_Q          Number       Double              Lanthanum, in parts per million, by quant direct-current arc emission spectrography.
    La_ppm_MS_HF         Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    La_ppm_MS_SF         Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    La_ppm_NA            Number       Double              Lanthanum, in parts per million, by neutron activation.
    LaCV_pct_NA          Number       Double              Lanthanum, coefficient of variance, in percent, by neutron activation.
    La_ppm_WDX           Number       Double              Lanthanum, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Li_ppm_AA            Number       Double              Lithium, in parts per million, by flame-atomic absorption spectrophotometry.
    Li_ppm_AES_AR        Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Li_ppm_AES_HF        Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Li_ppm_AES_SF        Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Li_ppm_ES            Number       Double              Lithium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Li_ppm_ES_Q          Number       Double              Lithium, in parts per million, by quant direct-current arc emission spectrography.
    Li_ppm_MS_HF         Number       Double              Lithium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Lu_ppm_AES_HF_REE    Number       Double              Lutetium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Lu_ppm_ES            Number       Double              Lutetium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Lu_ppm_MS_HF         Number       Double              Lutetium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Lu_ppm_MS_SF         Number       Double              Lutetium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Lu_ppm_NA            Number       Double              Lutetium, in parts per million, by neutron activation.
    LuCV_pct_NA          Number       Double              Lutetium, coefficient of variance, in percent, by neutron activation.
    Lu_ppm_WDX           Number       Double              Lutetium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Mg_meqgL_AA_P_XC     Number       Double              Magnesium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    Mg_meqgL_AA_P_XS     Number       Double              Magnesium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    Mn_ppm_AA_P          Number       Double              Manganese, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Mo_ppm_AA            Number       Double              Molybdenum, in parts per million, by flame-atomic absorption spectrophotometry.
    Mo_ppm_AA_P          Number       Double              Molybdenum, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Mo_ppm_AES_P         Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Mo_ppm_AES_AR        Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Mo_ppm_AES_HF        Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mo_ppm_AES_IE        Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy-ion exchange.
    Mo_ppm_CM            Number       Double              Molybdenum, in parts per million, by colorimetry.
    Mo_ppm_EDX           Number       Double              Molybdenum, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Mo_ppm_ES            Number       Double              Molybdenum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Mo_ppm_ES_Q          Number       Double              Molybdenum, in parts per million, by quant direct-current arc emission spectrography.
    Mo_ppm_MS_HF         Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Mo_ppm_MS_SF         Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Mo_ppm_NA            Number       Double              Molybdenum, in parts per million, by neutron activation.
    Na_meqgL_AA_P_XC     Number       Double              Sodium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    Na_meqgL_AA_P_XS     Number       Double              Sodium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Rock_W_Traces_Nb_Sr is a table of trace element data - niobium through strontium - for rock samples located west of W146.99999 degrees.

    FIELD_NAME           FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID               Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID             Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID               Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE             Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE            Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Nb_ppm_AES_AR        Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Nb_ppm_AES_HF        Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Nb_ppm_AES_IE        Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy-ion exchange.
    Nb_ppm_AES_SF        Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Nb_ppm_CM            Number       Double              Niobium, in parts per million, by colorimetry.
    Nb_ppm_EDX           Number       Double              Niobium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Nb_ppm_ES            Number       Double              Niobium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Nb_ppm_ES_Q          Number       Double              Niobium, in parts per million, by quant direct-current arc emission spectrography.
    Nb_ppm_MS_HF         Number       Double              Niobium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Nb_ppm_MS_SF         Number       Double              Niobium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Nb_ppm_WDX           Number       Double              Niobium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Nd_ppm_AES_HF        Number       Double              Neodymium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Nd_ppm_AES_HF_REE    Number       Double              Neodymium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Nd_ppm_EDX           Number       Double              Neodymium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Nd_ppm_ES            Number       Double              Neodymium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Nd_ppm_MS_SF         Number       Double              Neodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Nd_ppm_NA            Number       Double              Neodymium, in parts per million, by neutron activation.
    NdCV_pct_NA          Number       Double              Neodymium, coefficient of variance, in percent, by neutron activation.
    Nd_ppm_WDX           Number       Double              Neodymium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ni_ppm_AA            Number       Double              Nickel, in parts per million, by flame-atomic absorption spectrophotometry.
    Ni_ppm_AA_P          Number       Double              Nickel, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Ni_ppm_AES_P         Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Ni_ppm_AES_AR        Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ni_ppm_AES_HF        Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ni_ppm_AES_SF        Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ni_ppm_CM            Number       Double              Nickel, in parts per million, by colorimetry.
    Ni_ppm_EDX           Number       Double              Nickel, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Ni_ppm_ES            Number       Double              Nickel, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ni_ppm_ES_Q          Number       Double              Nickel, in parts per million, by quant direct-current arc emission spectrography.
    Ni_ppm_MS_HF         Number       Double              Nickel, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ni_ppm_NA            Number       Double              Nickel, in parts per million, by neutron activation.
    NiCV_pct_NA          Number       Double              Nickel, coefficient of variance, in percent, by neutron activation.
    Ni_ppm_WDX           Number       Double              Nickel, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Os_ppm_ES            Number       Double              Osmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pb_ppm_AA            Number       Double              Lead, in parts per million, by flame-atomic absorption spectrophotometry.
    Pb_ppm_AA_P          Number       Double              Lead, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Pb_ppm_AES_P         Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Pb_ppm_AES_AR        Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Pb_ppm_AES_HF        Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Pb_ppm_EDX           Number       Double              Lead, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Pb_ppm_ES            Number       Double              Lead, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pb_ppm_ES_Q          Number       Double              Lead, in parts per million, by quant direct-current arc emission spectrography.
    Pb_ppm_MS_HF         Number       Double              Lead, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Pb_ppm_MS_SF         Number       Double              Lead, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Pd_ppm_ES            Number       Double              Palladium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pd_ppm_FA_AA         Number       Double              Palladium, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Pd_ppm_FA_ES         Number       Double              Palladium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Pd_ppm_FA_MS         Number       Double              Palladium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    pH_SI_INST_P         Number       Double              pH, in standard units, by instrument after partial digestion.
    Pr_ppm_AES_HF        Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Pr_ppm_AES_HF_REE    Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Pr_ppm_ES            Number       Double              Praseodymium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pr_ppm_MS_SF         Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Pr_ppm_WDX           Number       Double              Praseodymium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Pt_ppm_ES            Number       Double              Platinum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pt_ppm_FA_AA         Number       Double              Platinum, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Pt_ppm_FA_ES         Number       Double              Platinum, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Pt_ppm_FA_MS         Number       Double              Platinum, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Rb_ppm_AA            Number       Double              Rubidium, in parts per million, by flame-atomic absorption spectrophotometry.
    Rb_ppm_AES_HF        Number       Double              Rubidium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Rb_ppm_EDX           Number       Double              Rubidium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Rb_ppm_ES            Number       Double              Rubidium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Rb_ppm_ES_Q          Number       Double              Rubidium, in parts per million, by quant direct-current arc emission spectrography.
    Rb_ppm_MS_HF         Number       Double              Rubidium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Rb_ppm_MS_SF         Number       Double              Rubidium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Rb_ppm_NA            Number       Double              Rubidium, in parts per million, by neutron activation.
    RbCV_pct_NA          Number       Double              Rubidium, coefficient of variance, in percent, by neutron activation.
    Rb_ppm_WDX           Number       Double              Rubidium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Re_ppm_ES            Number       Double              Rhenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Re_ppm_ES_Q          Number       Double              Rhenium, in parts per million, by quant direct-current arc emission spectrography.
    Re_ppm_MS_HF         Number       Double              Rhenium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Rh_ppm_ES            Number       Double              Rhodium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Rh_ppm_FA_AA         Number       Double              Rhodium, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Rh_ppm_FA_ES         Number       Double              Rhodium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Rh_ppm_FA_MS         Number       Double              Rhodium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Ru_ppm_ES            Number       Double              Ruthenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ru_ppm_FA_ES         Number       Double              Ruthenium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Ru_ppm_FA_MS         Number       Double              Ruthenium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    SatInd_pct_GV        Number       Double              Saturation index, in weight percent, by gravimetry.
    Sb_ppm_AA            Number       Double              Antimony, in parts per million, by flame-atomic absorption spectrophotometry.
    Sb_ppm_AA_P          Number       Double              Antimony, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Sb_ppm_AA_HG         Number       Double              Antimony, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    Sb_ppm_AES_P         Number       Double              Antimony, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Sb_ppm_AES_AR        Number       Double              Antimony, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sb_ppm_CM_P          Number       Double              Antimony, in parts per million, by colorimetry after partial digestion.
    Sb_ppm_EDX           Number       Double              Antimony, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Sb_ppm_ES            Number       Double              Antimony, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sb_ppm_ES_Q          Number       Double              Antimony, in parts per million, by quant direct-current arc emission spectrography.
    Sb_ppm_MS_HF         Number       Double              Antimony, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sb_ppm_MS_SF         Number       Double              Antimony, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sb_ppm_NA            Number       Double              Antimony, in parts per million, by neutron activation.
    SbCV_pct_NA          Number       Double              Antimony, coefficient of variance, in percent, by neutron activation.
    Sc_ppm_AES_AR        Number       Double              Scandium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sc_ppm_AES_HF        Number       Double              Scandium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sc_ppm_ES            Number       Double              Scandium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sc_ppm_ES_Q          Number       Double              Scandium, in parts per million, by quant direct-current arc emission spectrography.
    Sc_ppm_MS_HF         Number       Double              Scandium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sc_ppm_MS_SF         Number       Double              Scandium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sc_ppm_NA            Number       Double              Scandium, in parts per million, by neutron activation.
    ScCV_pct_NA          Number       Double              Scandium, coefficient of variance, in percent, by neutron activation.
    Se_ppm_AA_HG         Number       Double              Selenium, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    Se_ppm_AES_P         Number       Double              Selenium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Se_ppm_EDX           Number       Double              Selenium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Se_ppm_ES            Number       Double              Selenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Se_ppm_ES_Q          Number       Double              Selenium, in parts per million, by quant direct-current arc emission spectrography.
    Se_ppm_FL            Number       Double              Selenium, in parts per million, by fluorimetry.
    Se_ppm_MS_HF         Number       Double              Selenium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Se_ppm_NA            Number       Double              Selenium, in parts per million, by neutron activation.
    SeCV_pct_NA          Number       Double              Selenium, coefficient of variance, in percent, by neutron activation.
    Se_ppm_WDX           Number       Double              Selenium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Sm_ppm_AES_HF        Number       Double              Samarium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sm_ppm_AES_HF_REE    Number       Double              Samarium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Sm_ppm_ES            Number       Double              Samarium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sm_ppm_MS_SF         Number       Double              Samarium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sm_ppm_NA            Number       Double              Samarium, in parts per million, by neutron activation.
    SmCV_pct_NA          Number       Double              Samarium, coefficient of variance, in percent, by neutron activation.
    Sm_ppm_WDX           Number       Double              Samarium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Sn_ppm_AA            Number       Double              Tin, in parts per million, by flame-atomic absorption spectrophotometry.
    Sn_ppm_AES_AR        Number       Double              Tin, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sn_ppm_AES_HF        Number       Double              Tin, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sn_ppm_EDX           Number       Double              Tin, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Sn_ppm_ES            Number       Double              Tin, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sn_ppm_ES_Q          Number       Double              Tin, in parts per million, by quant direct-current arc emission spectrography.
    Sn_ppm_MS_HF         Number       Double              Tin, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sn_ppm_MS_SF         Number       Double              Tin, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sn_ppm_WDX           Number       Double              Tin, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    SO4_meqgL_CM_P       Number       Double              Sulfate, in milliequivalent grams per liter, by colorimetry after partial digestion.
    SpCon_uScm_INST_P    Number       Double              Specific conductivity, in microsiemens per centimeter, by instrument after partial digestion.
    SplWtFA_g_GV         Number       Double              Sample weight for fire assay analysis, in grams, by gravimetry.
    Sr_ppm_AA            Number       Double              Strontium, in parts per million, by flame-atomic absorption spectrophotometry.
    Sr_ppm_AES_AR        Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sr_ppm_AES_HF        Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sr_ppm_AES_SF        Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Sr_ppm_EDX           Number       Double              Strontium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Sr_ppm_ES            Number       Double              Strontium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sr_ppm_ES_Q          Number       Double              Strontium, in parts per million, by quant direct-current arc emission spectrography.
    Sr_ppm_MS_HF         Number       Double              Strontium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sr_ppm_NA            Number       Double              Strontium, in parts per million, by neutron activation.
    SrCV_pct_NA          Number       Double              Strontium, coefficient of variance, in percent, by neutron activation.
    Sr_ppm_WDX           Number       Double              Strontium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Rock_W_Traces_Ta_Zr is a table of trace element data - tantalum through zirconium - for rock samples located west of W146.99999 degrees.

    FIELD_NAME          FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID              Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID            Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID              Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE            Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE           Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Ta_ppm_AA           Number       Double              Tantalum, in parts per million, by flame-atomic absorption spectrophotometry.
    Ta_ppm_AES_HF       Number       Double              Tantalum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ta_ppm_ES           Number       Double              Tantalum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ta_ppm_MS_HF        Number       Double              Tantalum, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ta_ppm_MS_SF        Number       Double              Tantalum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ta_ppm_NA           Number       Double              Tantalum, in parts per million, by neutron activation.
    TaCV_pct_NA         Number       Double              Tantalum, coefficient of variance, in percent, by neutron activation.
    Tb_ppm_AES_HF       Number       Double              Terbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Tb_ppm_AES_HF_REE   Number       Double              Terbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Tb_ppm_ES           Number       Double              Terbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tb_ppm_MS_HF        Number       Double              Terbium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Tb_ppm_MS_SF        Number       Double              Terbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tb_ppm_NA           Number       Double              Terbium, in parts per million, by neutron activation.
    TbCV_pct_NA         Number       Double              Terbium, coefficient of variance, in percent, by neutron activation.
    Tb_ppm_WDX          Number       Double              Terbium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Te_ppm_AA           Number       Double              Tellurium, in parts per million, by flame-atomic absorption spectrophotometry.
    Te_ppm_AA_GF        Number       Double              Tellurium, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    Te_ppm_AA_HG        Number       Double              Tellurium, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    Te_ppm_CM           Number       Double              Tellurium, in parts per million, by colorimetry.
    Te_ppm_ES           Number       Double              Tellurium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Te_ppm_ES_Q         Number       Double              Tellurium, in parts per million, by quant direct-current arc emission spectrography.
    Te_ppm_MS_HF        Number       Double              Tellurium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Th_ppm_AES_HF       Number       Double              Thorium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Th_ppm_CM           Number       Double              Thorium, in parts per million, by colorimetry.
    Th_ppm_DN           Number       Double              Thorium, in parts per million, by delayed neutron counting.
    ThCV_pct_DN         Number       Double              Thorium, coefficient of variance, in percent, by delayed neutron counting.
    Th_ppm_EDX          Number       Double              Thorium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Th_ppm_ES           Number       Double              Thorium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Th_ppm_MS_HF        Number       Double              Thorium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Th_ppm_MS_SF        Number       Double              Thorium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Th_ppm_NA           Number       Double              Thorium, in parts per million, by neutron activation.
    ThCV_pct_NA         Number       Double              Thorium, coefficient of variance, in percent, by neutron activation.
    Th_ppm_WDX          Number       Double              Thorium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Tl_ppm_AA           Number       Double              Thallium, in parts per million, by flame-atomic absorption spectrophotometry.
    Tl_ppm_AA_GF        Number       Double              Thallium, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    Tl_ppm_AES_AR       Number       Double              Thallium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Tl_ppm_ES           Number       Double              Thallium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tl_ppm_ES_Q         Number       Double              Thallium, in parts per million, by quant direct-current arc emission spectrography.
    Tl_ppm_MS_HF        Number       Double              Thallium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Tl_ppm_MS_SF        Number       Double              Thallium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tm_ppm_AES_HF_REE   Number       Double              Thulium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Tm_ppm_ES           Number       Double              Thulium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tm_ppm_MS_SF        Number       Double              Thulium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tm_ppm_NA           Number       Double              Thulium, in parts per million, by neutron activation.
    TmCV_pct_NA         Number       Double              Thulium, coefficient of variance, in percent, by neutron activation.
    Tm_ppm_WDX          Number       Double              Thulium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    U_ppm_AES_AR        Number       Double              Uranium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    U_ppm_AES_HF        Number       Double              Uranium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    U_ppm_DN            Number       Double              Uranium, in parts per million, by delayed neutron counting.
    UCV_pct_DN          Number       Double              Uranium, coefficient of variance, in percent, by delayed neutron counting.
    U_ppm_EDX           Number       Double              Uranium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    U_ppm_ES            Number       Double              Uranium, in parts per million, by semi-quant direct-current arc emission spectrography.
    U_ppm_FL            Number       Double              Uranium, in parts per million, by fluorimetry.
    U_ppm_MS_HF         Number       Double              Uranium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    U_ppm_MS_SF         Number       Double              Uranium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    U_ppm_NA            Number       Double              Uranium, in parts per million, by neutron activation.
    UCV_pct_NA          Number       Double              Uranium, coefficient of variance, in percent, by neutron activation.
    U_ppm_WDX           Number       Double              Uranium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ueq_ppm_GRC         Number       Double              Uranium, equivalents in parts per million, gamma ray counting.
    V_ppm_AA            Number       Double              Vanadium, in parts per million, by flame-atomic absorption spectrophotometry.
    V_ppm_AES_AR        Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    V_ppm_AES_HF        Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    V_ppm_AES_SF        Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    V_ppm_CM            Number       Double              Vanadium, in parts per million, by colorimetry.
    V_ppm_EDX           Number       Double              Vanadium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    V_ppm_ES            Number       Double              Vanadium, in parts per million, by semi-quant direct-current arc emission spectrography.
    V_ppm_ES_Q          Number       Double              Vanadium, in parts per million, by quant direct-current arc emission spectrography.
    V_ppm_MS_HF         Number       Double              Vanadium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    V_ppm_NA            Number       Double              Vanadium, in parts per million, by neutron activation.
    V_ppm_WDX           Number       Double              Vanadium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    W_ppm_AES_P         Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    W_ppm_AES_AR        Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    W_ppm_AES_HF        Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    W_ppm_AES_IE        Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy-ion exchange.
    W_ppm_CM            Number       Double              Tungsten, in parts per million, by colorimetry.
    W_ppm_CM_P          Number       Double              Tungsten, in parts per million, by colorimetry after partial digestion.
    W_ppm_EDX           Number       Double              Tungsten, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    W_ppm_ES            Number       Double              Tungsten, in parts per million, by semi-quant direct-current arc emission spectrography.
    W_ppm_ES_Q          Number       Double              Tungsten, in parts per million, by quant direct-current arc emission spectrography.
    W_ppm_MS_HF         Number       Double              Tungsten, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    W_ppm_MS_SF         Number       Double              Tungsten, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    W_ppm_NA            Number       Double              Tungsten, in parts per million, by neutron activation.
    WCV_pct_NA          Number       Double              Tungsten, coefficient of variance, in percent, by neutron activation.
    Y_ppm_AES_AR        Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Y_ppm_AES_HF        Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Y_ppm_AES_HF_REE    Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Y_ppm_AES_SF        Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Y_ppm_EDX           Number       Double              Yttrium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Y_ppm_ES            Number       Double              Yttrium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Y_ppm_ES_Q          Number       Double              Yttrium, in parts per million, by quant direct-current arc emission spectrography.
    Y_ppm_MS_HF         Number       Double              Yttrium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Y_ppm_MS_SF         Number       Double              Yttrium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Y_ppm_NA            Number       Double              Yttrium, in parts per million, by neutron activation.
    Y_ppm_WDX           Number       Double              Yttrium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Yb_ppm_AES_HF       Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Yb_ppm_AES_HF_REE   Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy REE package after multi-acid digestion with HF.
    Yb_ppm_ES           Number       Double              Ytterbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Yb_ppm_ES_Q         Number       Double              Ytterbium, in parts per million, by quant direct-current arc emission spectrography.
    Yb_ppm_MS_HF        Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Yb_ppm_MS_SF        Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Yb_ppm_NA           Number       Double              Ytterbium, in parts per million, by neutron activation.
    YbCV_pct_NA         Number       Double              Ytterbium, coefficient of variance, in percent, by neutron activation.
    Yb_ppm_WDX          Number       Double              Ytterbium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Zn_ppm_AA           Number       Double              Zinc, in parts per million, by flame-atomic absorption spectrophotometry.
    Zn_ppm_AA_P         Number       Double              Zinc, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Zn_ppm_AES_P        Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Zn_ppm_AES_AR       Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Zn_ppm_AES_HF       Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Zn_ppm_AES_SF       Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Zn_ppm_EDX          Number       Double              Zinc, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Zn_ppm_ES           Number       Double              Zinc, in parts per million, by semi-quant direct-current arc emission spectrography.
    Zn_ppm_ES_Q         Number       Double              Zinc, in parts per million, by quant direct-current arc emission spectrography.
    Zn_ppm_MS_HF        Number       Double              Zinc, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Zn_ppm_NA           Number       Double              Zinc, in parts per million, by neutron activation.
    ZnCV_pct_NA         Number       Double              Zinc, coefficient of variance, in percent, by neutron activation.
    Zn_ppm_WDX          Number       Double              Zinc, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Zr_ppm_AES_AR       Number       Double              Zirconium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Zr_ppm_AES_HF       Number       Double              Zirconium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Zr_ppm_AES_SF       Number       Double              Zirconium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Zr_ppm_EDX          Number       Double              Zirconium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Zr_ppm_ES           Number       Double              Zirconium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Zr_ppm_ES_Q         Number       Double              Zirconium, in parts per million, by quant direct-current arc emission spectrography.
    Zr_ppm_MS_HF        Number       Double              Zirconium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Zr_ppm_MS_SF        Number       Double              Zirconium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Zr_ppm_NA           Number       Double              Zirconium, in parts per million, by neutron activation.
    ZrCV_pct_NA         Number       Double              Zirconium, coefficient of variance, in percent, by neutron activation.
    Zr_ppm_WDX          Number       Double              Zirconium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Sed_E_Ag_Cr is a table of chemical data - silver through chromium - for bulk sediment samples located east of W147 degrees.

    FIELD_NAME            FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID                Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID              Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID                Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE              Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE             Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Ag_ppm_AA             Number       Double              Silver, in parts per million, by flame-atomic absorption spectrophotometry.
    Ag_ppm_AA_P           Number       Double              Silver, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Ag_ppm_AES_P          Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Ag_ppm_AES_AR         Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ag_ppm_AES_HF         Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ag_ppm_ES             Number       Double              Silver, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ag_ppm_MS_P           Number       Double              Silver, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ag_ppm_MS_HF          Number       Double              Silver, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ag_ppm_MS_SF          Number       Double              Silver, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ag_ppm_NA             Number       Double              Silver, in parts per million, by neutron activation.
    Al_pct_AES_AR         Number       Double              Aluminum, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Al_pct_AES_HF         Number       Double              Aluminum, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Al_pct_AES_SF         Number       Double              Aluminum, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Al_pct_CM             Number       Double              Aluminum, in weight percent, by colorimetry.
    Al_pct_ES             Number       Double              Aluminum, in weight percent, by semi-quant direct-current arc emission spectrography.
    Al_pct_MS_P           Number       Double              Aluminum, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Al_pct_MS_HF          Number       Double              Aluminum, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Al_pct_WDX            Number       Double              Aluminum, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    As_ppm_AA             Number       Double              Arsenic, in parts per million, by flame-atomic absorption spectrophotometry.
    As_ppm_AA_P           Number       Double              Arsenic, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    As_ppm_AA_HG          Number       Double              Arsenic, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    As_ppm_AES_P          Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    As_ppm_AES_AR         Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    As_ppm_AES_HF         Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    As_ppm_CM_P           Number       Double              Arsenic, in parts per million, by colorimetry after partial digestion.
    As_ppm_ES             Number       Double              Arsenic, in parts per million, by semi-quant direct-current arc emission spectrography.
    As_ppm_MS_P           Number       Double              Arsenic, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    As_ppm_MS_HF          Number       Double              Arsenic, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    As_ppm_MS_SF          Number       Double              Arsenic, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    As_ppm_NA             Number       Double              Arsenic, in parts per million, by neutron activation.
    Ash_pct_GV            Number       Double              Ash, in weight percent, by gravimetry.
    Au_ppm_AA             Number       Double              Gold, in parts per million, by flame-atomic absorption spectrophotometry.
    Au_ppm_AA_GF          Number       Double              Gold, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    Au_ppm_AES_P          Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Au_ppm_AES_AR         Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Au_ppm_AES_HF         Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Au_ppm_ES             Number       Double              Gold, in parts per million, by semi-quant direct-current arc emission spectrography.
    Au_ppm_FA_AA          Number       Double              Gold, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Au_ppm_FA_DC          Number       Double              Gold, in parts per million, by fire assay and direct current plasma-atomic emission spectroscopy.
    Au_ppm_FA_ES          Number       Double              Gold, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Au_ppm_FA_MS          Number       Double              Gold, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Au_ppm_MS_HF          Number       Double              Gold, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Au_ppm_NA             Number       Double              Gold, in parts per million, by neutron activation.
    SplWtAu_g_GV          Number       Double              Sample weight for gold analysis, in grams, by gravimetry.
    B_ppm_AES_AR          Number       Double              Boron, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    B_ppm_ES              Number       Double              Boron, in parts per million, by semi-quant direct-current arc emission spectrography.
    B_ppm_ES_P            Number       Double              Boron, in parts per million, by semi-quant direct-current arc emission spectrography after partial digestion.
    B_ppm_MS_P            Number       Double              Boron, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ba_ppm_AES_AR         Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ba_ppm_AES_HF         Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ba_ppm_AES_SF         Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ba_ppm_EDX            Number       Double              Barium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Ba_ppm_ES             Number       Double              Barium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ba_ppm_MS_P           Number       Double              Barium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ba_ppm_MS_HF          Number       Double              Barium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ba_ppm_NA             Number       Double              Barium, in parts per million, by neutron activation.
    Ba_ppm_WDX            Number       Double              Barium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Be_ppm_AA             Number       Double              Beryllium, in parts per million, by flame-atomic absorption spectrophotometry.
    Be_ppm_AES_AR         Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Be_ppm_AES_HF         Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Be_ppm_AES_SF         Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Be_ppm_ES             Number       Double              Beryllium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Be_ppm_MS_P           Number       Double              Beryllium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Be_ppm_MS_HF          Number       Double              Beryllium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Bi_ppm_AA_P           Number       Double              Bismuth, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Bi_ppm_AES_P          Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Bi_ppm_AES_AR         Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Bi_ppm_AES_HF         Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Bi_ppm_ES             Number       Double              Bismuth, in parts per million, by semi-quant direct-current arc emission spectrography.
    Bi_ppm_MS_P           Number       Double              Bismuth, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Bi_ppm_MS_HF          Number       Double              Bismuth, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Bi_ppm_MS_SF          Number       Double              Bismuth, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Br_ppm_NA             Number       Double              Bromine, in parts per million, by neutron activation.
    C_pct_CB              Number       Double              Total carbon, in weight percent, by combustion.
    CO2_pct_TT            Number       Double              Carbon dioxide, in weight percent, by titration.
    CO2_pct_VOL           Number       Double              Carbon dioxide, in weight percent, by a volumetric method.
    CCO3_pct_TT           Number       Double              Carbonate carbon, in weight percent, by titration.
    CCO3_pct_VOL          Number       Double              Carbonate carbon, in weight percent, by a volumetric method.
    COrg_pct_CP           Number       Double              Organic carbon, in weight percent, by computation.
    Ca_meqgL_AA_P_XC      Number       Double              Calcium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    Ca_meqgL_AA_P_XS      Number       Double              Calcium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    Ca_pct_AA             Number       Double              Calcium, in weight percent, by flame-atomic absorption spectrophotometry.
    Ca_pct_AES_AR         Number       Double              Calcium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ca_pct_AES_HF         Number       Double              Calcium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ca_pct_AES_SF         Number       Double              Calcium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ca_pct_ES             Number       Double              Calcium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Ca_pct_MS_P           Number       Double              Calcium, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ca_pct_MS_HF          Number       Double              Calcium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ca_pct_WDX            Number       Double              Calcium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Cd_ppm_AA             Number       Double              Cadmium, in parts per million, by flame-atomic absorption spectrophotometry.
    Cd_ppm_AA_P           Number       Double              Cadmium, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Cd_ppm_AES_P          Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cd_ppm_AES_AR         Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cd_ppm_AES_HF         Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cd_ppm_ES             Number       Double              Cadmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cd_ppm_MS_P           Number       Double              Cadmium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Cd_ppm_MS_HF          Number       Double              Cadmium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cd_ppm_MS_SF          Number       Double              Cadmium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Cd_ppm_NA             Number       Double              Cadmium, in parts per million, by neutron activation.
    Ce_ppm_AES_AR         Number       Double              Cerium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ce_ppm_AES_HF         Number       Double              Cerium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ce_ppm_ES             Number       Double              Cerium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ce_ppm_MS_P           Number       Double              Cerium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ce_ppm_MS_HF          Number       Double              Cerium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ce_ppm_MS_SF          Number       Double              Cerium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ce_ppm_NA             Number       Double              Cerium, in parts per million, by neutron activation.
    CEC_meqg100g_CP_P     Number       Double              Cation exchange capacity, in milliequivalent-grams per100 grams, by computation after partial digestion.
    Cl_meqgL_ISE_P        Number       Double              Chloride, in milliequivalent-grams per liter, by ion specific electrode after partial digestion.
    Cl_pct_CM             Number       Double              Chlorine, in weight percent, by colorimetry.
    Cl_pct_ISE            Number       Double              Chlorine, in weight percent, by ion specific electrode.
    Co_ppm_AA_P           Number       Double              Cobalt, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Co_ppm_AES_P          Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Co_ppm_AES_AR         Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Co_ppm_AES_HF         Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Co_ppm_ES             Number       Double              Cobalt, in parts per million, by semi-quant direct-current arc emission spectrography.
    Co_ppm_MS_P           Number       Double              Cobalt, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Co_ppm_MS_HF          Number       Double              Cobalt, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Co_ppm_MS_SF          Number       Double              Cobalt, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Co_ppm_NA             Number       Double              Cobalt, in parts per million, by neutron activation.
    Cr_ppm_AES_P          Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cr_ppm_AES_AR         Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cr_ppm_AES_HF         Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cr_ppm_AES_SF         Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Cr_ppm_ES             Number       Double              Chromium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cr_ppm_MS_P           Number       Double              Chromium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Cr_ppm_MS_HF          Number       Double              Chromium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cr_ppm_NA             Number       Double              Chromium, in parts per million, by neutron activation.
    Cr_ppm_WDX            Number       Double              Chromium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Sed_E_Cs_Mn is a table of chemical data - cesium through manganese - for bulk sediment samples located east of W147 degrees.

    FIELD_NAME           FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID               Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID             Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID               Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE             Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE            Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Cs_ppm_AA            Number       Double              Cesium, in parts per million, by flame-atomic absorption spectrophotometry.
    Cs_ppm_MS_P          Number       Double              Cesium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Cs_ppm_MS_HF         Number       Double              Cesium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cs_ppm_MS_SF         Number       Double              Cesium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Cs_ppm_NA            Number       Double              Cesium, in parts per million, by neutron activation.
    Cu_ppm_AA            Number       Double              Copper, in parts per million, by flame-atomic absorption spectrophotometry.
    Cu_ppm_AA_P          Number       Double              Copper, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Cu_ppm_AES_P         Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cu_ppm_AES_AR        Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cu_ppm_AES_HF        Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cu_ppm_AES_SF        Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Cu_ppm_ES            Number       Double              Copper, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cu_ppm_MS_P          Number       Double              Copper, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Cu_ppm_MS_HF         Number       Double              Copper, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Dy_ppm_AES_HF        Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Dy_ppm_ES            Number       Double              Dysprosium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Dy_ppm_MS_HF         Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Dy_ppm_MS_SF         Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Er_ppm_AES_HF        Number       Double              Erbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Er_ppm_ES            Number       Double              Erbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Er_ppm_MS_HF         Number       Double              Erbium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Er_ppm_MS_SF         Number       Double              Erbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Eu_ppm_AES_HF        Number       Double              Europium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Eu_ppm_ES            Number       Double              Europium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Eu_ppm_MS_HF         Number       Double              Europium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Eu_ppm_MS_SF         Number       Double              Europium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Eu_ppm_NA            Number       Double              Europium, in parts per million, by neutron activation.
    F_pct_ISE            Number       Double              Fluorine, in weight percent, by ion specific electrode.
    Fe2_pct_TT           Number       Double              Ferrous iron, in weight percent, by titration.
    Fe_pct_AA_P          Number       Double              Iron, in weight percent, by flame-atomic absorption spectrophotometry after partial digestion.
    Fe_pct_AES_AR        Number       Double              Iron, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Fe_pct_AES_HF        Number       Double              Iron, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Fe_pct_AES_SF        Number       Double              Iron, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Fe_pct_CM            Number       Double              Iron, in weight percent, by colorimetry.
    Fe_pct_ES            Number       Double              Iron, in weight percent, by semi-quant direct-current arc emission spectrography.
    Fe_pct_MS_P          Number       Double              Iron, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Fe_pct_MS_HF         Number       Double              Iron, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Fe_pct_NA            Number       Double              Iron, in weight percent, by neutron activation.
    Fe_pct_WDX           Number       Double              Iron, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ga_ppm_AES_HF        Number       Double              Gallium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ga_ppm_ES            Number       Double              Gallium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ga_ppm_MS_P          Number       Double              Gallium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ga_ppm_MS_HF         Number       Double              Gallium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ga_ppm_MS_SF         Number       Double              Gallium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Gd_ppm_AES_HF        Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Gd_ppm_ES            Number       Double              Gadolinium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Gd_ppm_MS_HF         Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Gd_ppm_MS_SF         Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ge_ppm_ES            Number       Double              Germanium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ge_ppm_MS_P          Number       Double              Germanium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ge_ppm_MS_HF         Number       Double              Germanium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ge_ppm_MS_SF         Number       Double              Germanium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    H2Om_pct_GV          Number       Double              Moisture, in weight percent, by gravimetry.
    H2Ob_pct_GV          Number       Double              Bound water, in weight percent, by gravimetry.
    H2Ob_pct_TT          Number       Double              Bound water, in weight percent, by titration.
    Hf_ppm_ES            Number       Double              Hafnium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Hf_ppm_MS_SF         Number       Double              Hafnium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Hf_ppm_NA            Number       Double              Hafnium, in parts per million, by neutron activation.
    Hg_ppm_AA_P          Number       Double              Mercury, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Hg_ppm_AA_CV         Number       Double              Mercury, in parts per million, by cold vapor-atomic absorption spectrophotometry.
    Hg_ppm_AA_TR         Number       Double              Mercury, in parts per million, by thermal release-atomic absorption spectrophotometry.
    Hg_ppm_AFS           Number       Double              Mercury, in parts per million, by atomic fluorescence spectrophotometry.
    Hg_ppm_ES            Number       Double              Mercury, in parts per million, by semi-quant direct-current arc emission spectrography.
    Hg_ppm_MS_P          Number       Double              Mercury, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Hg_ppm_NA            Number       Double              Mercury, in parts per million, by neutron activation.
    HM_ppm_CM_P          Number       Double              Heavy metals, in parts per million, by colorimetry after partial digestion.
    Ho_ppm_AES_HF        Number       Double              Holmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ho_ppm_ES            Number       Double              Holmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ho_ppm_MS_HF         Number       Double              Holmium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ho_ppm_MS_SF         Number       Double              Holmium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    In_ppm_AA            Number       Double              Indium, in parts per million, by flame-atomic absorption spectrophotometry.
    In_ppm_ES            Number       Double              Indium, in parts per million, by semi-quant direct-current arc emission spectrography.
    In_ppm_MS_HF         Number       Double              Indium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    In_ppm_MS_SF         Number       Double              Indium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ir_ppm_ES            Number       Double              Iridium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ir_ppm_FA_ES         Number       Double              Iridium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Ir_ppm_FA_MS         Number       Double              Iridium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Ir_ppm_NA            Number       Double              Iridium, in parts per million, by neutron activation.
    K_meqgL_AA_P_XC      Number       Double              Potassium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    K_meqgL_AA_P_XS      Number       Double              Potassium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    K_pct_AA             Number       Double              Potassium, in weight percent, by flame-atomic absorption spectrophotometry.
    K_pct_AES_AR         Number       Double              Potassium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    K_pct_AES_HF         Number       Double              Potassium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    K_pct_AES_SF         Number       Double              Potassium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    K_pct_ES             Number       Double              Potassium, in weight percent, by semi-quant direct-current arc emission spectrography.
    K_pct_MS_P           Number       Double              Potassium, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    K_pct_MS_HF          Number       Double              Potassium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    K_pct_NA             Number       Double              Potassium, in weight percent, by neutron activation.
    K_pct_WDX            Number       Double              Potassium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    La_ppm_AES_AR        Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    La_ppm_AES_HF        Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    La_ppm_ES            Number       Double              Lanthanum, in parts per million, by semi-quant direct-current arc emission spectrography.
    La_ppm_MS_P          Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    La_ppm_MS_HF         Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    La_ppm_MS_SF         Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    La_ppm_NA            Number       Double              Lanthanum, in parts per million, by neutron activation.
    Li_ppm_AES_AR        Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Li_ppm_AES_HF        Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Li_ppm_AES_SF        Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Li_ppm_ES            Number       Double              Lithium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Li_ppm_MS_P          Number       Double              Lithium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Li_ppm_MS_HF         Number       Double              Lithium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    LOI_pct_GV           Number       Double              Loss on ignition, in weight percent, by gravimetry.
    Lu_ppm_ES            Number       Double              Lutetium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Lu_ppm_MS_P          Number       Double              Lutetium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Lu_ppm_MS_SF         Number       Double              Lutetium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Lu_ppm_NA            Number       Double              Lutetium, in parts per million, by neutron activation.
    Mg_meqgL_AA_P_XC     Number       Double              Magnesium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    Mg_meqgL_AA_P_XS     Number       Double              Magnesium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    Mg_pct_AA            Number       Double              Magnesium, in weight percent, by flame-atomic absorption spectrophotometry.
    Mg_pct_AES_AR        Number       Double              Magnesium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Mg_pct_AES_HF        Number       Double              Magnesium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mg_pct_AES_SF        Number       Double              Magnesium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Mg_pct_ES            Number       Double              Magnesium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Mg_pct_MS_P          Number       Double              Magnesium, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Mg_pct_MS_HF         Number       Double              Magnesium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Mg_pct_WDX           Number       Double              Magnesium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Mn_pct_AES_P         Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Mn_pct_AES_AR        Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Mn_pct_AES_HF        Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mn_pct_AES_SF        Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Mn_pct_CM            Number       Double              Manganese, in weight percent, by colorimetry.
    Mn_pct_ES            Number       Double              Manganese, in weight percent, by semi-quant direct-current arc emission spectrography.
    Mn_pct_MS_P          Number       Double              Manganese, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Mn_pct_MS_HF         Number       Double              Manganese, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Mn_pct_WDX           Number       Double              Manganese, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Mn_ppm_AA_P          Number       Double              Manganese, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Sed_E_Geol is a table of spatial, geologic and descriptive attributes for bulk sediment samples located east of W147 degrees.

    FIELD_NAME         FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID             Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID           Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID             Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    SUBMITTER          Text         75                  Name of the individual(s) who submitted the sample in a batch to the laboratory for analysis; not necessarily the sample collector.,
    PROJECT_NAME       Text         50                  Project name, at times derived from a project account number, of work group funded for the collection and analysis of submitted samples.
    DATE_SUBMITTED     Date/Time    n/a                 Date sample was submitted to Sample Control for initial database processing prior to sample prep and analysis.
    DATE_COLLECT       Date/Time    n/a                 Date the sample was collected, when recorded.
    COUNTRY            Text         20                  Country or marine body of water from where the sample was collected.
    STATE              Text         2                   Abbreviation of state from where the sample was collected.
    QUAD               Text         25                  Name of 1:250,000-scale quadrangle (1°x2° or 1°x3°) in which sample was collected.
    LATITUDE           Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE          Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    SPHEROID           Text         25                  Reference spheroid or ellipsoid, when recorded, for the latitude and longitude coordinates of the sample site.
    DATUM              Text         50                  Reference datum, when recorded, for the latitude and longitude coordinates of the sample site.
    LOCATE_DESC        Text         255                 Geographic information relating to the location of the sample site.
    DEPTH              Text         65                  Depth from the surface at which the sample was collected; units are specified by the submitter.
    SAMPLE_SOURCE      Text         40                  Physical setting or environment from which the sample was collected.
    METHOD_COLLECTED   Text         15                  Sample collection method: Single grab, composite, or channel.
    PRIMARY_CLASS      Text         30                  Primary classification of sample media.
    SAMPLE_COMMENT     Text         255                 Attribute used to modify PRIMARY_CLASS, SECONDARY_CLASS, or SPECIFIC_NAME; data is not derived from sample codes.
    ADDL_ATTR          Text         255                 Additional attributes used to modify PRIMARY_CLASS, SECONDARY_CLASS, or SPECIFIC_NAME; derived from sample codes in fields of original databases that do not have equivalent fields in the NGDB.
    GEOLOGIC_AGE       Text         60                  Age or range of ages from the Geological Time Scale for the collected sample.
    STRATIGRAPHY       Text         255                 Name of the stratigraphic unit from which the sample was collected. When present, values are as given by the sample submitter and may represent either a formal name, an informal name, or geologic map unit abbreviation.
    PREP               Text         255                 Description of the sample preparation methods used.
    MESH_PORE_SIZE     Text         60                  Sieve size used in field sampling or laboratory preparation to fractionate the sample.
    PREVIOUS_JOB_ID    Text         20                  Original NGDB batch number (JOB_ID) of a USGS resubmitted sample that has been given a new batch number upon resubmittal for further analysis.
    PREVIOUS_LAB_ID    Text         20                  Original NGDB LAB_ID of a USGS resubmitted sample that has been given a new lab number upon resubmittal for further analysis.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Sed_E_Mo_Se is a table of chemical data - molybdenum through selenium - for bulk sediment samples located east of W147 degrees.

    FIELD_NAME           FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID               Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID             Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID               Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE             Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE            Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Mo_ppm_AA_P          Number       Double              Molybdenum, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Mo_ppm_AES_P         Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Mo_ppm_AES_AR        Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Mo_ppm_AES_HF        Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mo_ppm_CM            Number       Double              Molybdenum, in parts per million, by colorimetry.
    Mo_ppm_CM_P          Number       Double              Molybdenum, in parts per million, by colorimetry after partial digestion.
    Mo_ppm_ES            Number       Double              Molybdenum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Mo_ppm_MS_P          Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Mo_ppm_MS_HF         Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Mo_ppm_MS_SF         Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Mo_ppm_NA            Number       Double              Molybdenum, in parts per million, by neutron activation.
    Na_meqgL_AA_P_XC     Number       Double              Sodium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    Na_meqgL_AA_P_XS     Number       Double              Sodium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    Na_pct_AA            Number       Double              Sodium, in weight percent, by flame-atomic absorption spectrophotometry.
    Na_pct_AES_AR        Number       Double              Sodium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Na_pct_AES_HF        Number       Double              Sodium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Na_pct_AES_SF        Number       Double              Sodium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Na_pct_ES            Number       Double              Sodium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Na_pct_MS_P          Number       Double              Sodium, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Na_pct_MS_HF         Number       Double              Sodium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Na_pct_NA            Number       Double              Sodium, in weight percent, by neutron activation.
    Na_pct_WDX           Number       Double              Sodium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Nb_ppm_AES_AR        Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Nb_ppm_AES_HF        Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Nb_ppm_AES_SF        Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Nb_ppm_ES            Number       Double              Niobium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Nb_ppm_MS_P          Number       Double              Niobium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Nb_ppm_MS_HF         Number       Double              Niobium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Nb_ppm_MS_SF         Number       Double              Niobium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Nd_ppm_AES_HF        Number       Double              Neodymium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Nd_ppm_ES            Number       Double              Neodymium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Nd_ppm_MS_HF         Number       Double              Neodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Nd_ppm_MS_SF         Number       Double              Neodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Nd_ppm_NA            Number       Double              Neodymium, in parts per million, by neutron activation.
    Ni_ppm_AA_P          Number       Double              Nickel, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Ni_ppm_AES_P         Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Ni_ppm_AES_AR        Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ni_ppm_AES_HF        Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ni_ppm_AES_SF        Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ni_ppm_ES            Number       Double              Nickel, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ni_ppm_MS_P          Number       Double              Nickel, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ni_ppm_MS_HF         Number       Double              Nickel, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ni_ppm_NA            Number       Double              Nickel, in parts per million, by neutron activation.
    Os_ppm_ES            Number       Double              Osmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Os_ppm_FA_MS         Number       Double              Osmium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    P_pct_AES_AR         Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    P_pct_AES_HF         Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    P_pct_AES_SF         Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    P_pct_CM             Number       Double              Phosphorus, in weight percent, by colorimetry.
    P_pct_ES             Number       Double              Phosphorus, in weight percent, by semi-quant direct-current arc emission spectrography.
    P_pct_MS_P           Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    P_pct_MS_HF          Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    P_pct_WDX            Number       Double              Phosphorus, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Pb_ppm_AA            Number       Double              Lead, in parts per million, by flame-atomic absorption spectrophotometry.
    Pb_ppm_AA_P          Number       Double              Lead, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Pb_ppm_AES_P         Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Pb_ppm_AES_AR        Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Pb_ppm_AES_HF        Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Pb_ppm_ES            Number       Double              Lead, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pb_ppm_MS_P          Number       Double              Lead, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Pb_ppm_MS_HF         Number       Double              Lead, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Pb_ppm_MS_SF         Number       Double              Lead, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Pd_ppm_ES            Number       Double              Palladium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pd_ppm_FA_ES         Number       Double              Palladium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Pd_ppm_FA_MS         Number       Double              Palladium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    pH_SI_INST           Number       Double              pH, in standard units, by instrument.
    pH_SI_INST_P         Number       Double              pH, in standard units, by instrument after partial digestion.
    Pr_ppm_AES_HF        Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Pr_ppm_ES            Number       Double              Praseodymium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pr_ppm_MS_HF         Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Pr_ppm_MS_SF         Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Pt_ppm_ES            Number       Double              Platinum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pt_ppm_FA_ES         Number       Double              Platinum, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Pt_ppm_FA_MS         Number       Double              Platinum, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Rb_ppm_AA            Number       Double              Rubidium, in parts per million, by flame-atomic absorption spectrophotometry.
    Rb_ppm_ES            Number       Double              Rubidium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Rb_ppm_MS_P          Number       Double              Rubidium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Rb_ppm_MS_HF         Number       Double              Rubidium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Rb_ppm_MS_SF         Number       Double              Rubidium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Rb_ppm_NA            Number       Double              Rubidium, in parts per million, by neutron activation.
    Re_ppm_ES            Number       Double              Rhenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Re_ppm_FA_MS         Number       Double              Rhenium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Re_ppm_MS_HF         Number       Double              Rhenium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Rh_ppm_ES            Number       Double              Rhodium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Rh_ppm_FA_ES         Number       Double              Rhodium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Rh_ppm_FA_MS         Number       Double              Rhodium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Ru_ppm_ES            Number       Double              Ruthenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ru_ppm_FA_ES         Number       Double              Ruthenium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Ru_ppm_FA_MS         Number       Double              Ruthenium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    S_pct_AES_HF         Number       Double              Total sulfur, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    S_pct_CB             Number       Double              Total sulfur, in weight percent, by combustion.
    S_pct_MS_P           Number       Double              Total sulfur, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    SO4_meqgL_CM_P       Number       Double              Sulfate, in milliequivalent grams per liter, by colorimetry after partial digestion.
    SatInd_pct_GV        Number       Double              Saturation index, in weight percent, by gravimetry.
    Sb_ppm_AA            Number       Double              Antimony, in parts per million, by flame-atomic absorption spectrophotometry.
    Sb_ppm_AA_P          Number       Double              Antimony, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Sb_ppm_AA_GF         Number       Double              Antimony, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    Sb_ppm_AA_HG         Number       Double              Antimony, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    Sb_ppm_AES_P         Number       Double              Antimony, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Sb_ppm_AES_AR        Number       Double              Antimony, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sb_ppm_CM_P          Number       Double              Antimony, in parts per million, by colorimetry after partial digestion.
    Sb_ppm_ES            Number       Double              Antimony, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sb_ppm_MS_P          Number       Double              Antimony, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Sb_ppm_MS_HF         Number       Double              Antimony, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sb_ppm_MS_SF         Number       Double              Antimony, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sb_ppm_NA            Number       Double              Antimony, in parts per million, by neutron activation.
    Sc_ppm_AES_AR        Number       Double              Scandium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sc_ppm_AES_HF        Number       Double              Scandium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sc_ppm_ES            Number       Double              Scandium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sc_ppm_MS_P          Number       Double              Scandium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Sc_ppm_MS_HF         Number       Double              Scandium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sc_ppm_MS_SF         Number       Double              Scandium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sc_ppm_NA            Number       Double              Scandium, in parts per million, by neutron activation.
    Se_ppm_AA_HG         Number       Double              Selenium, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    Se_ppm_AES_P         Number       Double              Selenium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Se_ppm_ES            Number       Double              Selenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Se_ppm_FL            Number       Double              Selenium, in parts per million, by fluorimetry.
    Se_ppm_MS_HF         Number       Double              Selenium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Se_ppm_NA            Number       Double              Selenium, in parts per million, by neutron activation.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Sed_E_Si_Zr is a table of chemical data - silicon through zirconium - for bulk sediment samples located east of W147 degrees.

    FIELD_NAME           FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID               Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID             Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID               Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE             Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE            Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Si_pct_AES_SF        Number       Double              Silicon, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Si_pct_CM            Number       Double              Silicon, in weight percent, by colorimetry.
    Si_pct_ES            Number       Double              Silicon, in weight percent, by semi-quant direct-current arc emission spectrography.
    Si_pct_WDX           Number       Double              Silicon, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Sm_ppm_AES_HF        Number       Double              Samarium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sm_ppm_ES            Number       Double              Samarium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sm_ppm_MS_HF         Number       Double              Samarium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sm_ppm_MS_SF         Number       Double              Samarium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sm_ppm_NA            Number       Double              Samarium, in parts per million, by neutron activation.
    Sn_ppm_AES_AR        Number       Double              Tin, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sn_ppm_AES_HF        Number       Double              Tin, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sn_ppm_CM            Number       Double              Tin, in parts per million, by colorimetry.
    Sn_ppm_ES            Number       Double              Tin, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sn_ppm_MS_HF         Number       Double              Tin, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sn_ppm_MS_SF         Number       Double              Tin, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sn_ppm_NA            Number       Double              Tin, in parts per million, by neutron activation.
    SpCon_uScm_INST_P    Number       Double              Specific conductivity, in microsiemens per centimeter, by instrument after partial digestion.
    SplWtFA_g_GV         Number       Double              Sample weight for fire assay analysis, in grams, by gravimetry.
    Sr_ppm_AES_AR        Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sr_ppm_AES_HF        Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sr_ppm_AES_SF        Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Sr_ppm_ES            Number       Double              Strontium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sr_ppm_MS_P          Number       Double              Strontium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Sr_ppm_MS_HF         Number       Double              Strontium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ta_ppm_AES_HF        Number       Double              Tantalum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ta_ppm_ES            Number       Double              Tantalum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ta_ppm_MS_P          Number       Double              Tantalum, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ta_ppm_MS_HF         Number       Double              Tantalum, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ta_ppm_MS_SF         Number       Double              Tantalum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ta_ppm_NA            Number       Double              Tantalum, in parts per million, by neutron activation.
    Tb_ppm_AES_HF        Number       Double              Terbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Tb_ppm_ES            Number       Double              Terbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tb_ppm_MS_P          Number       Double              Terbium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Tb_ppm_MS_HF         Number       Double              Terbium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Tb_ppm_MS_SF         Number       Double              Terbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tb_ppm_NA            Number       Double              Terbium, in parts per million, by neutron activation.
    Te_ppm_AA            Number       Double              Tellurium, in parts per million, by flame-atomic absorption spectrophotometry.
    Te_ppm_AA_GF         Number       Double              Tellurium, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    Te_ppm_ES            Number       Double              Tellurium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Te_ppm_MS_HF         Number       Double              Tellurium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Te_ppm_NA            Number       Double              Tellurium, in parts per million, by neutron activation.
    Th_ppm_AES_HF        Number       Double              Thorium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Th_ppm_CM            Number       Double              Thorium, in parts per million, by colorimetry.
    Th_ppm_DN            Number       Double              Thorium, in parts per million, by delayed neutron counting.
    Th_ppm_ES            Number       Double              Thorium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Th_ppm_MS_P          Number       Double              Thorium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Th_ppm_MS_HF         Number       Double              Thorium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Th_ppm_MS_SF         Number       Double              Thorium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Th_ppm_NA            Number       Double              Thorium, in parts per million, by neutron activation.
    Ti_pct_AES_AR        Number       Double              Titanium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ti_pct_AES_HF        Number       Double              Titanium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ti_pct_AES_SF        Number       Double              Titanium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ti_pct_CM            Number       Double              Titanium, in weight percent, by colorimetry.
    Ti_pct_ES            Number       Double              Titanium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Ti_pct_MS_P          Number       Double              Titanium, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ti_pct_MS_HF         Number       Double              Titanium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ti_pct_WDX           Number       Double              Titanium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Tl_ppm_AA            Number       Double              Thallium, in parts per million, by flame-atomic absorption spectrophotometry.
    Tl_ppm_AA_GF         Number       Double              Thallium, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    Tl_ppm_AES_AR        Number       Double              Thallium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Tl_ppm_ES            Number       Double              Thallium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tl_ppm_MS_P          Number       Double              Thallium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Tl_ppm_MS_HF         Number       Double              Thallium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Tl_ppm_MS_SF         Number       Double              Thallium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tm_ppm_ES            Number       Double              Thulium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tm_ppm_MS_HF         Number       Double              Thulium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Tm_ppm_MS_SF         Number       Double              Thulium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    U_ppm_AES_HF         Number       Double              Uranium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    U_ppm_CM_P           Number       Double              Uranium, in parts per million, by colorimetry after partial digestion.
    U_ppm_DN             Number       Double              Uranium, in parts per million, by delayed neutron counting.
    U_ppm_ES             Number       Double              Uranium, in parts per million, by semi-quant direct-current arc emission spectrography.
    U_ppm_FL             Number       Double              Uranium, in parts per million, by fluorimetry.
    U_ppm_MS_P           Number       Double              Uranium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    U_ppm_MS_HF          Number       Double              Uranium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    U_ppm_MS_SF          Number       Double              Uranium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    U_ppm_NA             Number       Double              Uranium, in parts per million, by neutron activation.
    Ueq_ppm_GRC          Number       Double              Uranium, equivalents in parts per million, gamma ray counting.
    V_ppm_AES_AR         Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    V_ppm_AES_HF         Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    V_ppm_AES_SF         Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    V_ppm_ES             Number       Double              Vanadium, in parts per million, by semi-quant direct-current arc emission spectrography.
    V_ppm_MS_P           Number       Double              Vanadium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    V_ppm_MS_HF          Number       Double              Vanadium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    W_ppm_AES_P          Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    W_ppm_AES_AR         Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    W_ppm_AES_IE         Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy-ion exchange.
    W_ppm_CM             Number       Double              Tungsten, in parts per million, by colorimetry.
    W_ppm_CM_P           Number       Double              Tungsten, in parts per million, by colorimetry after partial digestion.
    W_ppm_ES             Number       Double              Tungsten, in parts per million, by semi-quant direct-current arc emission spectrography.
    W_ppm_MS_P           Number       Double              Tungsten, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    W_ppm_MS_HF          Number       Double              Tungsten, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    W_ppm_MS_SF          Number       Double              Tungsten, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    W_ppm_NA             Number       Double              Tungsten, in parts per million, by neutron activation.
    Y_ppm_AES_AR         Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Y_ppm_AES_HF         Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Y_ppm_AES_SF         Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Y_ppm_ES             Number       Double              Yttrium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Y_ppm_MS_P           Number       Double              Yttrium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Y_ppm_MS_HF          Number       Double              Yttrium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Y_ppm_MS_SF          Number       Double              Yttrium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Yb_ppm_AES_HF        Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Yb_ppm_ES            Number       Double              Ytterbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Yb_ppm_MS_P          Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Yb_ppm_MS_HF         Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Yb_ppm_MS_SF         Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Yb_ppm_NA            Number       Double              Ytterbium, in parts per million, by neutron activation.
    Zn_ppm_AA            Number       Double              Zinc, in parts per million, by flame-atomic absorption spectrophotometry.
    Zn_ppm_AA_P          Number       Double              Zinc, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Zn_ppm_AES_P         Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Zn_ppm_AES_AR        Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Zn_ppm_AES_HF        Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Zn_ppm_AES_SF        Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Zn_ppm_CM_P          Number       Double              Zinc, in parts per million, by colorimetry after partial digestion.
    Zn_ppm_ES            Number       Double              Zinc, in parts per million, by semi-quant direct-current arc emission spectrography.
    Zn_ppm_MS_P          Number       Double              Zinc, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Zn_ppm_MS_HF         Number       Double              Zinc, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Zn_ppm_NA            Number       Double              Zinc, in parts per million, by neutron activation.
    Zr_ppm_AES_AR        Number       Double              Zirconium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Zr_ppm_AES_SF        Number       Double              Zirconium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Zr_ppm_ES            Number       Double              Zirconium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Zr_ppm_MS_P          Number       Double              Zirconium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Zr_ppm_NA            Number       Double              Zirconium, in parts per million, by neutron activation.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Sed_W_Ag_Cr is a table of chemical data - silver through chromium - for bulk sediment samples located west of W146.99999 degrees.

    FIELD_NAME            FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID                Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID              Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID                Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE              Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE             Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Ag_ppm_AA             Number       Double              Silver, in parts per million, by flame-atomic absorption spectrophotometry.
    Ag_ppm_AA_P           Number       Double              Silver, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Ag_ppm_AES_P          Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Ag_ppm_AES_AR         Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ag_ppm_AES_HF         Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ag_ppm_ES             Number       Double              Silver, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ag_ppm_MS_P           Number       Double              Silver, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ag_ppm_MS_HF          Number       Double              Silver, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ag_ppm_MS_SF          Number       Double              Silver, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ag_ppm_NA             Number       Double              Silver, in parts per million, by neutron activation.
    Al_pct_AES_AR         Number       Double              Aluminum, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Al_pct_AES_HF         Number       Double              Aluminum, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Al_pct_AES_SF         Number       Double              Aluminum, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Al_pct_CM             Number       Double              Aluminum, in weight percent, by colorimetry.
    Al_pct_ES             Number       Double              Aluminum, in weight percent, by semi-quant direct-current arc emission spectrography.
    Al_pct_MS_P           Number       Double              Aluminum, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Al_pct_MS_HF          Number       Double              Aluminum, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Al_pct_WDX            Number       Double              Aluminum, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    As_ppm_AA             Number       Double              Arsenic, in parts per million, by flame-atomic absorption spectrophotometry.
    As_ppm_AA_P           Number       Double              Arsenic, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    As_ppm_AA_HG          Number       Double              Arsenic, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    As_ppm_AES_P          Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    As_ppm_AES_AR         Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    As_ppm_AES_HF         Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    As_ppm_CM_P           Number       Double              Arsenic, in parts per million, by colorimetry after partial digestion.
    As_ppm_ES             Number       Double              Arsenic, in parts per million, by semi-quant direct-current arc emission spectrography.
    As_ppm_MS_P           Number       Double              Arsenic, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    As_ppm_MS_HF          Number       Double              Arsenic, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    As_ppm_MS_SF          Number       Double              Arsenic, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    As_ppm_NA             Number       Double              Arsenic, in parts per million, by neutron activation.
    Ash_pct_GV            Number       Double              Ash, in weight percent, by gravimetry.
    Au_ppm_AA             Number       Double              Gold, in parts per million, by flame-atomic absorption spectrophotometry.
    Au_ppm_AA_GF          Number       Double              Gold, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    Au_ppm_AES_P          Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Au_ppm_AES_AR         Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Au_ppm_AES_HF         Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Au_ppm_ES             Number       Double              Gold, in parts per million, by semi-quant direct-current arc emission spectrography.
    Au_ppm_FA_AA          Number       Double              Gold, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Au_ppm_FA_DC          Number       Double              Gold, in parts per million, by fire assay and direct current plasma-atomic emission spectroscopy.
    Au_ppm_FA_ES          Number       Double              Gold, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Au_ppm_FA_MS          Number       Double              Gold, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Au_ppm_MS_HF          Number       Double              Gold, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Au_ppm_NA             Number       Double              Gold, in parts per million, by neutron activation.
    SplWtAu_g_GV          Number       Double              Sample weight for gold analysis, in grams, by gravimetry.
    B_ppm_AES_AR          Number       Double              Boron, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    B_ppm_ES              Number       Double              Boron, in parts per million, by semi-quant direct-current arc emission spectrography.
    B_ppm_ES_P            Number       Double              Boron, in parts per million, by semi-quant direct-current arc emission spectrography after partial digestion.
    B_ppm_MS_P            Number       Double              Boron, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ba_ppm_AES_AR         Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ba_ppm_AES_HF         Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ba_ppm_AES_SF         Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ba_ppm_EDX            Number       Double              Barium, in parts per million, by energy-dispersive X-ray fluorescence spectroscopy.
    Ba_ppm_ES             Number       Double              Barium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ba_ppm_MS_P           Number       Double              Barium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ba_ppm_MS_HF          Number       Double              Barium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ba_ppm_NA             Number       Double              Barium, in parts per million, by neutron activation.
    Ba_ppm_WDX            Number       Double              Barium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Be_ppm_AA             Number       Double              Beryllium, in parts per million, by flame-atomic absorption spectrophotometry.
    Be_ppm_AES_AR         Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Be_ppm_AES_HF         Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Be_ppm_AES_SF         Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Be_ppm_ES             Number       Double              Beryllium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Be_ppm_MS_P           Number       Double              Beryllium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Be_ppm_MS_HF          Number       Double              Beryllium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Bi_ppm_AA_P           Number       Double              Bismuth, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Bi_ppm_AES_P          Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Bi_ppm_AES_AR         Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Bi_ppm_AES_HF         Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Bi_ppm_ES             Number       Double              Bismuth, in parts per million, by semi-quant direct-current arc emission spectrography.
    Bi_ppm_MS_P           Number       Double              Bismuth, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Bi_ppm_MS_HF          Number       Double              Bismuth, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Bi_ppm_MS_SF          Number       Double              Bismuth, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Br_ppm_NA             Number       Double              Bromine, in parts per million, by neutron activation.
    C_pct_CB              Number       Double              Total carbon, in weight percent, by combustion.
    CO2_pct_TT            Number       Double              Carbon dioxide, in weight percent, by titration.
    CO2_pct_VOL           Number       Double              Carbon dioxide, in weight percent, by a volumetric method.
    CCO3_pct_TT           Number       Double              Carbonate carbon, in weight percent, by titration.
    CCO3_pct_VOL          Number       Double              Carbonate carbon, in weight percent, by a volumetric method.
    COrg_pct_CP           Number       Double              Organic carbon, in weight percent, by computation.
    Ca_meqgL_AA_P_XC      Number       Double              Calcium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    Ca_meqgL_AA_P_XS      Number       Double              Calcium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    Ca_pct_AA             Number       Double              Calcium, in weight percent, by flame-atomic absorption spectrophotometry.
    Ca_pct_AES_AR         Number       Double              Calcium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ca_pct_AES_HF         Number       Double              Calcium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ca_pct_AES_SF         Number       Double              Calcium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ca_pct_ES             Number       Double              Calcium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Ca_pct_MS_P           Number       Double              Calcium, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ca_pct_MS_HF          Number       Double              Calcium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ca_pct_WDX            Number       Double              Calcium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Cd_ppm_AA             Number       Double              Cadmium, in parts per million, by flame-atomic absorption spectrophotometry.
    Cd_ppm_AA_P           Number       Double              Cadmium, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Cd_ppm_AES_P          Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cd_ppm_AES_AR         Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cd_ppm_AES_HF         Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cd_ppm_ES             Number       Double              Cadmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cd_ppm_MS_P           Number       Double              Cadmium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Cd_ppm_MS_HF          Number       Double              Cadmium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cd_ppm_MS_SF          Number       Double              Cadmium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Cd_ppm_NA             Number       Double              Cadmium, in parts per million, by neutron activation.
    Ce_ppm_AES_AR         Number       Double              Cerium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ce_ppm_AES_HF         Number       Double              Cerium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ce_ppm_ES             Number       Double              Cerium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ce_ppm_MS_P           Number       Double              Cerium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ce_ppm_MS_HF          Number       Double              Cerium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ce_ppm_MS_SF          Number       Double              Cerium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ce_ppm_NA             Number       Double              Cerium, in parts per million, by neutron activation.
    CEC_meqg100g_CP_P     Number       Double              Cation exchange capacity, in milliequivalent-grams per100 grams, by computation after partial digestion.
    Cl_meqgL_ISE_P        Number       Double              Chloride, in milliequivalent-grams per liter, by ion specific electrode after partial digestion.
    Cl_pct_CM             Number       Double              Chlorine, in weight percent, by colorimetry.
    Cl_pct_ISE            Number       Double              Chlorine, in weight percent, by ion specific electrode.
    Co_ppm_AA_P           Number       Double              Cobalt, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Co_ppm_AES_P          Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Co_ppm_AES_AR         Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Co_ppm_AES_HF         Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Co_ppm_ES             Number       Double              Cobalt, in parts per million, by semi-quant direct-current arc emission spectrography.
    Co_ppm_MS_P           Number       Double              Cobalt, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Co_ppm_MS_HF          Number       Double              Cobalt, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Co_ppm_MS_SF          Number       Double              Cobalt, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Co_ppm_NA             Number       Double              Cobalt, in parts per million, by neutron activation.
    Cr_ppm_AES_P          Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cr_ppm_AES_AR         Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cr_ppm_AES_HF         Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cr_ppm_AES_SF         Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Cr_ppm_ES             Number       Double              Chromium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cr_ppm_MS_P           Number       Double              Chromium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Cr_ppm_MS_HF          Number       Double              Chromium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cr_ppm_NA             Number       Double              Chromium, in parts per million, by neutron activation.
    Cr_ppm_WDX            Number       Double              Chromium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Sed_W_Cs_Mn is a table of chemical data - cesium through manganese - for bulk sediment samples located west of W146.99999 degrees.

    FIELD_NAME           FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID               Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID             Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID               Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE             Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE            Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Cs_ppm_AA            Number       Double              Cesium, in parts per million, by flame-atomic absorption spectrophotometry.
    Cs_ppm_MS_P          Number       Double              Cesium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Cs_ppm_MS_HF         Number       Double              Cesium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cs_ppm_MS_SF         Number       Double              Cesium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Cs_ppm_NA            Number       Double              Cesium, in parts per million, by neutron activation.
    Cu_ppm_AA            Number       Double              Copper, in parts per million, by flame-atomic absorption spectrophotometry.
    Cu_ppm_AA_P          Number       Double              Copper, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Cu_ppm_AES_P         Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cu_ppm_AES_AR        Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cu_ppm_AES_HF        Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cu_ppm_AES_SF        Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Cu_ppm_ES            Number       Double              Copper, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cu_ppm_MS_P          Number       Double              Copper, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Cu_ppm_MS_HF         Number       Double              Copper, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Dy_ppm_AES_HF        Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Dy_ppm_ES            Number       Double              Dysprosium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Dy_ppm_MS_HF         Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Dy_ppm_MS_SF         Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Er_ppm_AES_HF        Number       Double              Erbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Er_ppm_ES            Number       Double              Erbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Er_ppm_MS_HF         Number       Double              Erbium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Er_ppm_MS_SF         Number       Double              Erbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Eu_ppm_AES_HF        Number       Double              Europium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Eu_ppm_ES            Number       Double              Europium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Eu_ppm_MS_HF         Number       Double              Europium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Eu_ppm_MS_SF         Number       Double              Europium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Eu_ppm_NA            Number       Double              Europium, in parts per million, by neutron activation.
    F_pct_ISE            Number       Double              Fluorine, in weight percent, by ion specific electrode.
    Fe2_pct_TT           Number       Double              Ferrous iron, in weight percent, by titration.
    Fe_pct_AA_P          Number       Double              Iron, in weight percent, by flame-atomic absorption spectrophotometry after partial digestion.
    Fe_pct_AES_AR        Number       Double              Iron, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Fe_pct_AES_HF        Number       Double              Iron, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Fe_pct_AES_SF        Number       Double              Iron, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Fe_pct_CM            Number       Double              Iron, in weight percent, by colorimetry.
    Fe_pct_ES            Number       Double              Iron, in weight percent, by semi-quant direct-current arc emission spectrography.
    Fe_pct_MS_P          Number       Double              Iron, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Fe_pct_MS_HF         Number       Double              Iron, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Fe_pct_NA            Number       Double              Iron, in weight percent, by neutron activation.
    Fe_pct_WDX           Number       Double              Iron, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Ga_ppm_AES_HF        Number       Double              Gallium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ga_ppm_ES            Number       Double              Gallium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ga_ppm_MS_P          Number       Double              Gallium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ga_ppm_MS_HF         Number       Double              Gallium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ga_ppm_MS_SF         Number       Double              Gallium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Gd_ppm_AES_HF        Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Gd_ppm_ES            Number       Double              Gadolinium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Gd_ppm_MS_HF         Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Gd_ppm_MS_SF         Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ge_ppm_ES            Number       Double              Germanium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ge_ppm_MS_P          Number       Double              Germanium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ge_ppm_MS_HF         Number       Double              Germanium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ge_ppm_MS_SF         Number       Double              Germanium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    H2Om_pct_GV          Number       Double              Moisture, in weight percent, by gravimetry.
    H2Ob_pct_GV          Number       Double              Bound water, in weight percent, by gravimetry.
    H2Ob_pct_TT          Number       Double              Bound water, in weight percent, by titration.
    Hf_ppm_ES            Number       Double              Hafnium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Hf_ppm_MS_SF         Number       Double              Hafnium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Hf_ppm_NA            Number       Double              Hafnium, in parts per million, by neutron activation.
    Hg_ppm_AA_P          Number       Double              Mercury, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Hg_ppm_AA_CV         Number       Double              Mercury, in parts per million, by cold vapor-atomic absorption spectrophotometry.
    Hg_ppm_AA_TR         Number       Double              Mercury, in parts per million, by thermal release-atomic absorption spectrophotometry.
    Hg_ppm_AFS           Number       Double              Mercury, in parts per million, by atomic fluorescence spectrophotometry.
    Hg_ppm_ES            Number       Double              Mercury, in parts per million, by semi-quant direct-current arc emission spectrography.
    Hg_ppm_MS_P          Number       Double              Mercury, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Hg_ppm_NA            Number       Double              Mercury, in parts per million, by neutron activation.
    HM_ppm_CM_P          Number       Double              Heavy metals, in parts per million, by colorimetry after partial digestion.
    Ho_ppm_AES_HF        Number       Double              Holmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ho_ppm_ES            Number       Double              Holmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ho_ppm_MS_HF         Number       Double              Holmium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ho_ppm_MS_SF         Number       Double              Holmium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    In_ppm_AA            Number       Double              Indium, in parts per million, by flame-atomic absorption spectrophotometry.
    In_ppm_ES            Number       Double              Indium, in parts per million, by semi-quant direct-current arc emission spectrography.
    In_ppm_MS_HF         Number       Double              Indium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    In_ppm_MS_SF         Number       Double              Indium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ir_ppm_ES            Number       Double              Iridium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ir_ppm_FA_ES         Number       Double              Iridium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Ir_ppm_FA_MS         Number       Double              Iridium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Ir_ppm_NA            Number       Double              Iridium, in parts per million, by neutron activation.
    K_meqgL_AA_P_XC      Number       Double              Potassium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    K_meqgL_AA_P_XS      Number       Double              Potassium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    K_pct_AA             Number       Double              Potassium, in weight percent, by flame-atomic absorption spectrophotometry.
    K_pct_AES_AR         Number       Double              Potassium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    K_pct_AES_HF         Number       Double              Potassium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    K_pct_AES_SF         Number       Double              Potassium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    K_pct_ES             Number       Double              Potassium, in weight percent, by semi-quant direct-current arc emission spectrography.
    K_pct_MS_P           Number       Double              Potassium, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    K_pct_MS_HF          Number       Double              Potassium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    K_pct_NA             Number       Double              Potassium, in weight percent, by neutron activation.
    K_pct_WDX            Number       Double              Potassium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    La_ppm_AES_AR        Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    La_ppm_AES_HF        Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    La_ppm_ES            Number       Double              Lanthanum, in parts per million, by semi-quant direct-current arc emission spectrography.
    La_ppm_MS_P          Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    La_ppm_MS_HF         Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    La_ppm_MS_SF         Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    La_ppm_NA            Number       Double              Lanthanum, in parts per million, by neutron activation.
    Li_ppm_AES_AR        Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Li_ppm_AES_HF        Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Li_ppm_AES_SF        Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Li_ppm_ES            Number       Double              Lithium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Li_ppm_MS_P          Number       Double              Lithium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Li_ppm_MS_HF         Number       Double              Lithium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    LOI_pct_GV           Number       Double              Loss on ignition, in weight percent, by gravimetry.
    Lu_ppm_ES            Number       Double              Lutetium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Lu_ppm_MS_P          Number       Double              Lutetium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Lu_ppm_MS_SF         Number       Double              Lutetium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Lu_ppm_NA            Number       Double              Lutetium, in parts per million, by neutron activation.
    Mg_meqgL_AA_P_XC     Number       Double              Magnesium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    Mg_meqgL_AA_P_XS     Number       Double              Magnesium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    Mg_pct_AA            Number       Double              Magnesium, in weight percent, by flame-atomic absorption spectrophotometry.
    Mg_pct_AES_AR        Number       Double              Magnesium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Mg_pct_AES_HF        Number       Double              Magnesium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mg_pct_AES_SF        Number       Double              Magnesium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Mg_pct_ES            Number       Double              Magnesium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Mg_pct_MS_P          Number       Double              Magnesium, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Mg_pct_MS_HF         Number       Double              Magnesium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Mg_pct_WDX           Number       Double              Magnesium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Mn_pct_AES_P         Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Mn_pct_AES_AR        Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Mn_pct_AES_HF        Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mn_pct_AES_SF        Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Mn_pct_CM            Number       Double              Manganese, in weight percent, by colorimetry.
    Mn_pct_ES            Number       Double              Manganese, in weight percent, by semi-quant direct-current arc emission spectrography.
    Mn_pct_MS_P          Number       Double              Manganese, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Mn_pct_MS_HF         Number       Double              Manganese, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Mn_pct_WDX           Number       Double              Manganese, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Mn_ppm_AA_P          Number       Double              Manganese, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Sed_W_Geol is a table of spatial, geologic and descriptive attributes for bulk sediment samples located west of W146.99999 degrees.

    FIELD_NAME         FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID             Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID           Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID             Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    SUBMITTER          Text         75                  Name of the individual(s) who submitted the sample in a batch to the laboratory for analysis; not necessarily the sample collector.,
    PROJECT_NAME       Text         50                  Project name, at times derived from a project account number, of work group funded for the collection and analysis of submitted samples.
    DATE_SUBMITTED     Date/Time    n/a                 Date sample was submitted to Sample Control for initial database processing prior to sample prep and analysis.
    DATE_COLLECT       Date/Time    n/a                 Date the sample was collected, when recorded.
    COUNTRY            Text         20                  Country or marine body of water from where the sample was collected.
    STATE              Text         2                   Abbreviation of state from where the sample was collected.
    QUAD               Text         25                  Name of 1:250,000-scale quadrangle (1°x2° or 1°x3°) in which sample was collected.
    LATITUDE           Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE          Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    SPHEROID           Text         25                  Reference spheroid or ellipsoid, when recorded, for the latitude and longitude coordinates of the sample site.
    DATUM              Text         50                  Reference datum, when recorded, for the latitude and longitude coordinates of the sample site.
    LOCATE_DESC        Text         255                 Geographic information relating to the location of the sample site.
    DEPTH              Text         65                  Depth from the surface at which the sample was collected; units are specified by the submitter.
    SAMPLE_SOURCE      Text         40                  Physical setting or environment from which the sample was collected.
    METHOD_COLLECTED   Text         15                  Sample collection method: Single grab, composite, or channel.
    PRIMARY_CLASS      Text         30                  Primary classification of sample media.
    SAMPLE_COMMENT     Text         255                 Attribute used to modify PRIMARY_CLASS, SECONDARY_CLASS, or SPECIFIC_NAME; data is not derived from sample codes.
    ADDL_ATTR          Text         255                 Additional attributes used to modify PRIMARY_CLASS, SECONDARY_CLASS, or SPECIFIC_NAME; derived from sample codes in fields of original databases that do not have equivalent fields in the NGDB.
    GEOLOGIC_AGE       Text         60                  Age or range of ages from the Geological Time Scale for the collected sample.
    STRATIGRAPHY       Text         255                 Name of the stratigraphic unit from which the sample was collected. When present, values are as given by the sample submitter and may represent either a formal name, an informal name, or geologic map unit abbreviation.
    PREP               Text         255                 Description of the sample preparation methods used.
    MESH_PORE_SIZE     Text         60                  Sieve size used in field sampling or laboratory preparation to fractionate the sample.
    PREVIOUS_JOB_ID    Text         20                  Original NGDB batch number (JOB_ID) of a USGS resubmitted sample that has been given a new batch number upon resubmittal for further analysis.
    PREVIOUS_LAB_ID    Text         20                  Original NGDB LAB_ID of a USGS resubmitted sample that has been given a new lab number upon resubmittal for further analysis.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Sed_W_Mo_Se is a table of chemical data - molybdenum through selenium - for bulk sediment samples located west of W146.99999 degrees.

    FIELD_NAME           FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID               Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID             Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID               Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE             Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE            Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Mo_ppm_AA_P          Number       Double              Molybdenum, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Mo_ppm_AES_P         Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Mo_ppm_AES_AR        Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Mo_ppm_AES_HF        Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mo_ppm_CM            Number       Double              Molybdenum, in parts per million, by colorimetry.
    Mo_ppm_CM_P          Number       Double              Molybdenum, in parts per million, by colorimetry after partial digestion.
    Mo_ppm_ES            Number       Double              Molybdenum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Mo_ppm_MS_P          Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Mo_ppm_MS_HF         Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Mo_ppm_MS_SF         Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Mo_ppm_NA            Number       Double              Molybdenum, in parts per million, by neutron activation.
    Na_meqgL_AA_P_XC     Number       Double              Sodium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    Na_meqgL_AA_P_XS     Number       Double              Sodium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    Na_pct_AA            Number       Double              Sodium, in weight percent, by flame-atomic absorption spectrophotometry.
    Na_pct_AES_AR        Number       Double              Sodium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Na_pct_AES_HF        Number       Double              Sodium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Na_pct_AES_SF        Number       Double              Sodium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Na_pct_ES            Number       Double              Sodium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Na_pct_MS_P          Number       Double              Sodium, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Na_pct_MS_HF         Number       Double              Sodium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Na_pct_NA            Number       Double              Sodium, in weight percent, by neutron activation.
    Na_pct_WDX           Number       Double              Sodium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Nb_ppm_AES_AR        Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Nb_ppm_AES_HF        Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Nb_ppm_AES_SF        Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Nb_ppm_ES            Number       Double              Niobium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Nb_ppm_MS_P          Number       Double              Niobium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Nb_ppm_MS_HF         Number       Double              Niobium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Nb_ppm_MS_SF         Number       Double              Niobium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Nd_ppm_AES_HF        Number       Double              Neodymium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Nd_ppm_ES            Number       Double              Neodymium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Nd_ppm_MS_HF         Number       Double              Neodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Nd_ppm_MS_SF         Number       Double              Neodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Nd_ppm_NA            Number       Double              Neodymium, in parts per million, by neutron activation.
    Ni_ppm_AA_P          Number       Double              Nickel, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Ni_ppm_AES_P         Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Ni_ppm_AES_AR        Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ni_ppm_AES_HF        Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ni_ppm_AES_SF        Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ni_ppm_ES            Number       Double              Nickel, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ni_ppm_MS_P          Number       Double              Nickel, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ni_ppm_MS_HF         Number       Double              Nickel, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ni_ppm_NA            Number       Double              Nickel, in parts per million, by neutron activation.
    Os_ppm_ES            Number       Double              Osmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Os_ppm_FA_MS         Number       Double              Osmium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    P_pct_AES_AR         Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    P_pct_AES_HF         Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    P_pct_AES_SF         Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    P_pct_CM             Number       Double              Phosphorus, in weight percent, by colorimetry.
    P_pct_ES             Number       Double              Phosphorus, in weight percent, by semi-quant direct-current arc emission spectrography.
    P_pct_MS_P           Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    P_pct_MS_HF          Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    P_pct_WDX            Number       Double              Phosphorus, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Pb_ppm_AA            Number       Double              Lead, in parts per million, by flame-atomic absorption spectrophotometry.
    Pb_ppm_AA_P          Number       Double              Lead, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Pb_ppm_AES_P         Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Pb_ppm_AES_AR        Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Pb_ppm_AES_HF        Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Pb_ppm_ES            Number       Double              Lead, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pb_ppm_MS_P          Number       Double              Lead, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Pb_ppm_MS_HF         Number       Double              Lead, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Pb_ppm_MS_SF         Number       Double              Lead, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Pd_ppm_ES            Number       Double              Palladium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pd_ppm_FA_ES         Number       Double              Palladium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Pd_ppm_FA_MS         Number       Double              Palladium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    pH_SI_INST           Number       Double              pH, in standard units, by instrument.
    pH_SI_INST_P         Number       Double              pH, in standard units, by instrument after partial digestion.
    Pr_ppm_AES_HF        Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Pr_ppm_ES            Number       Double              Praseodymium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pr_ppm_MS_HF         Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Pr_ppm_MS_SF         Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Pt_ppm_ES            Number       Double              Platinum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pt_ppm_FA_ES         Number       Double              Platinum, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Pt_ppm_FA_MS         Number       Double              Platinum, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Rb_ppm_AA            Number       Double              Rubidium, in parts per million, by flame-atomic absorption spectrophotometry.
    Rb_ppm_ES            Number       Double              Rubidium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Rb_ppm_MS_P          Number       Double              Rubidium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Rb_ppm_MS_HF         Number       Double              Rubidium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Rb_ppm_MS_SF         Number       Double              Rubidium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Rb_ppm_NA            Number       Double              Rubidium, in parts per million, by neutron activation.
    Re_ppm_ES            Number       Double              Rhenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Re_ppm_FA_MS         Number       Double              Rhenium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Re_ppm_MS_HF         Number       Double              Rhenium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Rh_ppm_ES            Number       Double              Rhodium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Rh_ppm_FA_ES         Number       Double              Rhodium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Rh_ppm_FA_MS         Number       Double              Rhodium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Ru_ppm_ES            Number       Double              Ruthenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ru_ppm_FA_ES         Number       Double              Ruthenium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Ru_ppm_FA_MS         Number       Double              Ruthenium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    S_pct_AES_HF         Number       Double              Total sulfur, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    S_pct_CB             Number       Double              Total sulfur, in weight percent, by combustion.
    S_pct_MS_P           Number       Double              Total sulfur, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    SO4_meqgL_CM_P       Number       Double              Sulfate, in milliequivalent grams per liter, by colorimetry after partial digestion.
    SatInd_pct_GV        Number       Double              Saturation index, in weight percent, by gravimetry.
    Sb_ppm_AA            Number       Double              Antimony, in parts per million, by flame-atomic absorption spectrophotometry.
    Sb_ppm_AA_P          Number       Double              Antimony, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Sb_ppm_AA_GF         Number       Double              Antimony, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    Sb_ppm_AA_HG         Number       Double              Antimony, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    Sb_ppm_AES_P         Number       Double              Antimony, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Sb_ppm_AES_AR        Number       Double              Antimony, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sb_ppm_CM_P          Number       Double              Antimony, in parts per million, by colorimetry after partial digestion.
    Sb_ppm_ES            Number       Double              Antimony, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sb_ppm_MS_P          Number       Double              Antimony, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Sb_ppm_MS_HF         Number       Double              Antimony, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sb_ppm_MS_SF         Number       Double              Antimony, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sb_ppm_NA            Number       Double              Antimony, in parts per million, by neutron activation.
    Sc_ppm_AES_AR        Number       Double              Scandium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sc_ppm_AES_HF        Number       Double              Scandium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sc_ppm_ES            Number       Double              Scandium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sc_ppm_MS_P          Number       Double              Scandium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Sc_ppm_MS_HF         Number       Double              Scandium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sc_ppm_MS_SF         Number       Double              Scandium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sc_ppm_NA            Number       Double              Scandium, in parts per million, by neutron activation.
    Se_ppm_AA_HG         Number       Double              Selenium, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    Se_ppm_AES_P         Number       Double              Selenium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Se_ppm_ES            Number       Double              Selenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Se_ppm_FL            Number       Double              Selenium, in parts per million, by fluorimetry.
    Se_ppm_MS_HF         Number       Double              Selenium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Se_ppm_NA            Number       Double              Selenium, in parts per million, by neutron activation.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Sed_W_Si_Zr is a table of chemical data - silicon through zirconium - for bulk sediment samples located west of W146.99999 degrees.

    FIELD_NAME           FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID               Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID             Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID               Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE             Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE            Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Si_pct_AES_SF        Number       Double              Silicon, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Si_pct_CM            Number       Double              Silicon, in weight percent, by colorimetry.
    Si_pct_ES            Number       Double              Silicon, in weight percent, by semi-quant direct-current arc emission spectrography.
    Si_pct_WDX           Number       Double              Silicon, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Sm_ppm_AES_HF        Number       Double              Samarium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sm_ppm_ES            Number       Double              Samarium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sm_ppm_MS_HF         Number       Double              Samarium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sm_ppm_MS_SF         Number       Double              Samarium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sm_ppm_NA            Number       Double              Samarium, in parts per million, by neutron activation.
    Sn_ppm_AES_AR        Number       Double              Tin, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sn_ppm_AES_HF        Number       Double              Tin, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sn_ppm_CM            Number       Double              Tin, in parts per million, by colorimetry.
    Sn_ppm_ES            Number       Double              Tin, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sn_ppm_MS_HF         Number       Double              Tin, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sn_ppm_MS_SF         Number       Double              Tin, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sn_ppm_NA            Number       Double              Tin, in parts per million, by neutron activation.
    SpCon_uScm_INST_P    Number       Double              Specific conductivity, in microsiemens per centimeter, by instrument after partial digestion.
    SplWtFA_g_GV         Number       Double              Sample weight for fire assay analysis, in grams, by gravimetry.
    Sr_ppm_AES_AR        Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sr_ppm_AES_HF        Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sr_ppm_AES_SF        Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Sr_ppm_ES            Number       Double              Strontium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sr_ppm_MS_P          Number       Double              Strontium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Sr_ppm_MS_HF         Number       Double              Strontium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ta_ppm_AES_HF        Number       Double              Tantalum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ta_ppm_ES            Number       Double              Tantalum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ta_ppm_MS_P          Number       Double              Tantalum, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ta_ppm_MS_HF         Number       Double              Tantalum, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ta_ppm_MS_SF         Number       Double              Tantalum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ta_ppm_NA            Number       Double              Tantalum, in parts per million, by neutron activation.
    Tb_ppm_AES_HF        Number       Double              Terbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Tb_ppm_ES            Number       Double              Terbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tb_ppm_MS_P          Number       Double              Terbium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Tb_ppm_MS_HF         Number       Double              Terbium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Tb_ppm_MS_SF         Number       Double              Terbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tb_ppm_NA            Number       Double              Terbium, in parts per million, by neutron activation.
    Te_ppm_AA            Number       Double              Tellurium, in parts per million, by flame-atomic absorption spectrophotometry.
    Te_ppm_AA_GF         Number       Double              Tellurium, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    Te_ppm_ES            Number       Double              Tellurium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Te_ppm_MS_HF         Number       Double              Tellurium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Te_ppm_NA            Number       Double              Tellurium, in parts per million, by neutron activation.
    Th_ppm_AES_HF        Number       Double              Thorium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Th_ppm_CM            Number       Double              Thorium, in parts per million, by colorimetry.
    Th_ppm_DN            Number       Double              Thorium, in parts per million, by delayed neutron counting.
    Th_ppm_ES            Number       Double              Thorium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Th_ppm_MS_P          Number       Double              Thorium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Th_ppm_MS_HF         Number       Double              Thorium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Th_ppm_MS_SF         Number       Double              Thorium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Th_ppm_NA            Number       Double              Thorium, in parts per million, by neutron activation.
    Ti_pct_AES_AR        Number       Double              Titanium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ti_pct_AES_HF        Number       Double              Titanium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ti_pct_AES_SF        Number       Double              Titanium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ti_pct_CM            Number       Double              Titanium, in weight percent, by colorimetry.
    Ti_pct_ES            Number       Double              Titanium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Ti_pct_MS_P          Number       Double              Titanium, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ti_pct_MS_HF         Number       Double              Titanium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ti_pct_WDX           Number       Double              Titanium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Tl_ppm_AA            Number       Double              Thallium, in parts per million, by flame-atomic absorption spectrophotometry.
    Tl_ppm_AA_GF         Number       Double              Thallium, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    Tl_ppm_AES_AR        Number       Double              Thallium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Tl_ppm_ES            Number       Double              Thallium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tl_ppm_MS_P          Number       Double              Thallium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Tl_ppm_MS_HF         Number       Double              Thallium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Tl_ppm_MS_SF         Number       Double              Thallium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tm_ppm_ES            Number       Double              Thulium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tm_ppm_MS_HF         Number       Double              Thulium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Tm_ppm_MS_SF         Number       Double              Thulium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    U_ppm_AES_HF         Number       Double              Uranium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    U_ppm_CM_P           Number       Double              Uranium, in parts per million, by colorimetry after partial digestion.
    U_ppm_DN             Number       Double              Uranium, in parts per million, by delayed neutron counting.
    U_ppm_ES             Number       Double              Uranium, in parts per million, by semi-quant direct-current arc emission spectrography.
    U_ppm_FL             Number       Double              Uranium, in parts per million, by fluorimetry.
    U_ppm_MS_P           Number       Double              Uranium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    U_ppm_MS_HF          Number       Double              Uranium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    U_ppm_MS_SF          Number       Double              Uranium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    U_ppm_NA             Number       Double              Uranium, in parts per million, by neutron activation.
    Ueq_ppm_GRC          Number       Double              Uranium, equivalents in parts per million, gamma ray counting.
    V_ppm_AES_AR         Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    V_ppm_AES_HF         Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    V_ppm_AES_SF         Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    V_ppm_ES             Number       Double              Vanadium, in parts per million, by semi-quant direct-current arc emission spectrography.
    V_ppm_MS_P           Number       Double              Vanadium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    V_ppm_MS_HF          Number       Double              Vanadium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    W_ppm_AES_P          Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    W_ppm_AES_AR         Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    W_ppm_AES_IE         Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy-ion exchange.
    W_ppm_CM             Number       Double              Tungsten, in parts per million, by colorimetry.
    W_ppm_CM_P           Number       Double              Tungsten, in parts per million, by colorimetry after partial digestion.
    W_ppm_ES             Number       Double              Tungsten, in parts per million, by semi-quant direct-current arc emission spectrography.
    W_ppm_MS_P           Number       Double              Tungsten, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    W_ppm_MS_HF          Number       Double              Tungsten, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    W_ppm_MS_SF          Number       Double              Tungsten, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    W_ppm_NA             Number       Double              Tungsten, in parts per million, by neutron activation.
    Y_ppm_AES_AR         Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Y_ppm_AES_HF         Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Y_ppm_AES_SF         Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Y_ppm_ES             Number       Double              Yttrium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Y_ppm_MS_P           Number       Double              Yttrium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Y_ppm_MS_HF          Number       Double              Yttrium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Y_ppm_MS_SF          Number       Double              Yttrium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Yb_ppm_AES_HF        Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Yb_ppm_ES            Number       Double              Ytterbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Yb_ppm_MS_P          Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Yb_ppm_MS_HF         Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Yb_ppm_MS_SF         Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Yb_ppm_NA            Number       Double              Ytterbium, in parts per million, by neutron activation.
    Zn_ppm_AA            Number       Double              Zinc, in parts per million, by flame-atomic absorption spectrophotometry.
    Zn_ppm_AA_P          Number       Double              Zinc, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Zn_ppm_AES_P         Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Zn_ppm_AES_AR        Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Zn_ppm_AES_HF        Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Zn_ppm_AES_SF        Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Zn_ppm_CM_P          Number       Double              Zinc, in parts per million, by colorimetry after partial digestion.
    Zn_ppm_ES            Number       Double              Zinc, in parts per million, by semi-quant direct-current arc emission spectrography.
    Zn_ppm_MS_P          Number       Double              Zinc, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Zn_ppm_MS_HF         Number       Double              Zinc, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Zn_ppm_NA            Number       Double              Zinc, in parts per million, by neutron activation.
    Zr_ppm_AES_AR        Number       Double              Zirconium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Zr_ppm_AES_SF        Number       Double              Zirconium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Zr_ppm_ES            Number       Double              Zirconium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Zr_ppm_MS_P          Number       Double              Zirconium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Zr_ppm_NA            Number       Double              Zirconium, in parts per million, by neutron activation.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Soil_Ag_Fe is a table of chemical data - silver through iron - for soil samples.

    FIELD_NAME            FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID                Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID              Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID                Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE              Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE             Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Ag_ppm_AA             Number       Double              Silver, in parts per million, by flame-atomic absorption spectrophotometry.
    Ag_ppm_AA_P           Number       Double              Silver, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Ag_ppm_AES_P          Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Ag_ppm_AES_AR         Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ag_ppm_AES_HF         Number       Double              Silver, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ag_ppm_ES             Number       Double              Silver, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ag_ppm_MS_P           Number       Double              Silver, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ag_ppm_MS_HF          Number       Double              Silver, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ag_ppm_MS_SF          Number       Double              Silver, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Al_pct_AES_AR         Number       Double              Aluminum, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Al_pct_AES_HF         Number       Double              Aluminum, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Al_pct_AES_SF         Number       Double              Aluminum, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Al_pct_ES             Number       Double              Aluminum, in weight percent, by semi-quant direct-current arc emission spectrography.
    Al_pct_MS_P           Number       Double              Aluminum, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Al_pct_MS_HF          Number       Double              Aluminum, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Al_pct_WDX            Number       Double              Aluminum, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    As_ppm_AA             Number       Double              Arsenic, in parts per million, by flame-atomic absorption spectrophotometry.
    As_ppm_AA_P           Number       Double              Arsenic, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    As_ppm_AA_HG          Number       Double              Arsenic, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    As_ppm_AES_P          Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    As_ppm_AES_AR         Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    As_ppm_AES_HF         Number       Double              Arsenic, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    As_ppm_CM_P           Number       Double              Arsenic, in parts per million, by colorimetry after partial digestion.
    As_ppm_ES             Number       Double              Arsenic, in parts per million, by semi-quant direct-current arc emission spectrography.
    As_ppm_MS_P           Number       Double              Arsenic, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    As_ppm_MS_HF          Number       Double              Arsenic, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    As_ppm_MS_SF          Number       Double              Arsenic, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ash_pct_GV            Number       Double              Ash, in weight percent, by gravimetry.
    Au_ppm_AA             Number       Double              Gold, in parts per million, by flame-atomic absorption spectrophotometry.
    Au_ppm_AA_GF          Number       Double              Gold, in parts per million, by graphite furnace-atomic absorption spectrophotometry.
    Au_ppm_AES_P          Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Au_ppm_AES_AR         Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Au_ppm_AES_HF         Number       Double              Gold, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Au_ppm_ES             Number       Double              Gold, in parts per million, by semi-quant direct-current arc emission spectrography.
    Au_ppm_FA_AA          Number       Double              Gold, in parts per million, by fire assay and flame-atomic absorption spectrophotometry.
    Au_ppm_FA_DC          Number       Double              Gold, in parts per million, by fire assay and direct current plasma-atomic emission spectroscopy.
    Au_ppm_FA_ES          Number       Double              Gold, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Au_ppm_FA_MS          Number       Double              Gold, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Au_ppm_MS_P           Number       Double              Gold, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Au_ppm_MS_HF          Number       Double              Gold, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    SplWtAu_g_GV          Number       Double              Sample weight for gold analysis, in grams, by gravimetry.
    B_ppm_AES_AR          Number       Double              Boron, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    B_ppm_ES              Number       Double              Boron, in parts per million, by semi-quant direct-current arc emission spectrography.
    B_ppm_ES_P            Number       Double              Boron, in parts per million, by semi-quant direct-current arc emission spectrography after partial digestion.
    B_ppm_MS_P            Number       Double              Boron, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ba_ppm_AES_AR         Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ba_ppm_AES_HF         Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ba_ppm_AES_SF         Number       Double              Barium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ba_ppm_ES             Number       Double              Barium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ba_ppm_MS_P           Number       Double              Barium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ba_ppm_MS_HF          Number       Double              Barium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ba_ppm_MS_SF          Number       Double              Barium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ba_ppm_WDX            Number       Double              Barium, in parts per million, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Be_ppm_AES_AR         Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Be_ppm_AES_HF         Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Be_ppm_AES_SF         Number       Double              Beryllium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Be_ppm_ES             Number       Double              Beryllium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Be_ppm_MS_P           Number       Double              Beryllium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Be_ppm_MS_HF          Number       Double              Beryllium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Bi_ppm_AA_P           Number       Double              Bismuth, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Bi_ppm_AES_P          Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Bi_ppm_AES_AR         Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Bi_ppm_AES_HF         Number       Double              Bismuth, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Bi_ppm_ES             Number       Double              Bismuth, in parts per million, by semi-quant direct-current arc emission spectrography.
    Bi_ppm_MS_P           Number       Double              Bismuth, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Bi_ppm_MS_HF          Number       Double              Bismuth, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Bi_ppm_MS_SF          Number       Double              Bismuth, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    C_pct_CB              Number       Double              Total carbon, in weight percent, by combustion.
    CO2_pct_TT            Number       Double              Carbon dioxide, in weight percent, by titration.
    CCO3_pct_TT           Number       Double              Carbonate carbon, in weight percent, by titration.
    COrg_pct_CP           Number       Double              Organic carbon, in weight percent, by computation.
    Ca_meqgL_AA_P_XC      Number       Double              Calcium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    Ca_meqgL_AA_P_XS      Number       Double              Calcium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    Ca_pct_AA             Number       Double              Calcium, in weight percent, by flame-atomic absorption spectrophotometry.
    Ca_pct_AES_AR         Number       Double              Calcium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ca_pct_AES_HF         Number       Double              Calcium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ca_pct_AES_SF         Number       Double              Calcium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ca_pct_CM             Number       Double              Calcium, in weight percent, by colorimetry.
    Ca_pct_ES             Number       Double              Calcium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Ca_pct_MS_P           Number       Double              Calcium, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ca_pct_MS_HF          Number       Double              Calcium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ca_pct_WDX            Number       Double              Calcium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Cd_ppm_AA_P           Number       Double              Cadmium, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Cd_ppm_AES_P          Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cd_ppm_AES_AR         Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cd_ppm_AES_HF         Number       Double              Cadmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cd_ppm_ES             Number       Double              Cadmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cd_ppm_MS_P           Number       Double              Cadmium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Cd_ppm_MS_HF          Number       Double              Cadmium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cd_ppm_MS_SF          Number       Double              Cadmium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ce_ppm_AES_AR         Number       Double              Cerium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ce_ppm_AES_HF         Number       Double              Cerium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ce_ppm_ES             Number       Double              Cerium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ce_ppm_MS_P           Number       Double              Cerium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ce_ppm_MS_HF          Number       Double              Cerium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ce_ppm_MS_SF          Number       Double              Cerium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    CEC_meqg100g_CP_P     Number       Double              Cation exchange capacity, in milliequivalent-grams per100 grams, by computation after partial digestion.
    Cl_meqgL_ISE_P        Number       Double              Chloride, in milliequivalent-grams per liter, by ion specific electrode after partial digestion.
    Cl_pct_IC             Number       Double              Chloride, in weight percent, by ion chromatography.
    Cl_pct_ISE            Number       Double              Chlorine, in weight percent, by ion specific electrode.
    Co_ppm_AA_P           Number       Double              Cobalt, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Co_ppm_AES_P          Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Co_ppm_AES_AR         Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Co_ppm_AES_HF         Number       Double              Cobalt, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Co_ppm_ES             Number       Double              Cobalt, in parts per million, by semi-quant direct-current arc emission spectrography.
    Co_ppm_MS_P           Number       Double              Cobalt, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Co_ppm_MS_HF          Number       Double              Cobalt, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Co_ppm_MS_SF          Number       Double              Cobalt, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Cr_ppm_AES_P          Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cr_ppm_AES_AR         Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cr_ppm_AES_HF         Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cr_ppm_AES_SF         Number       Double              Chromium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Cr_ppm_ES             Number       Double              Chromium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cr_ppm_MS_P           Number       Double              Chromium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Cr_ppm_MS_HF          Number       Double              Chromium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cs_ppm_MS_P           Number       Double              Cesium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Cs_ppm_MS_HF          Number       Double              Cesium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Cs_ppm_MS_SF          Number       Double              Cesium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Cu_ppm_AA_P           Number       Double              Copper, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Cu_ppm_AES_P          Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Cu_ppm_AES_AR         Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Cu_ppm_AES_HF         Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Cu_ppm_AES_SF         Number       Double              Copper, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Cu_ppm_ES             Number       Double              Copper, in parts per million, by semi-quant direct-current arc emission spectrography.
    Cu_ppm_MS_P           Number       Double              Copper, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Cu_ppm_MS_HF          Number       Double              Copper, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Dy_ppm_AES_HF         Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Dy_ppm_ES             Number       Double              Dysprosium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Dy_ppm_MS_HF          Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Dy_ppm_MS_SF          Number       Double              Dysprosium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Er_ppm_AES_HF         Number       Double              Erbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Er_ppm_ES             Number       Double              Erbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Er_ppm_MS_HF          Number       Double              Erbium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Er_ppm_MS_SF          Number       Double              Erbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Eu_ppm_AES_HF         Number       Double              Europium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Eu_ppm_ES             Number       Double              Europium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Eu_ppm_MS_HF          Number       Double              Europium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Eu_ppm_MS_SF          Number       Double              Europium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    F_pct_ISE             Number       Double              Fluorine, in weight percent, by ion specific electrode.
    Fe2_pct_TT            Number       Double              Ferrous iron, in weight percent, by titration.
    Fe_pct_AA_P           Number       Double              Iron, in weight percent, by flame-atomic absorption spectrophotometry after partial digestion.
    Fe_pct_AES_AR         Number       Double              Iron, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Fe_pct_AES_HF         Number       Double              Iron, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Fe_pct_AES_SF         Number       Double              Iron, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Fe_pct_ES             Number       Double              Iron, in weight percent, by semi-quant direct-current arc emission spectrography.
    Fe_pct_MS_P           Number       Double              Iron, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Fe_pct_MS_HF          Number       Double              Iron, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Fe_pct_WDX            Number       Double              Iron, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Soil_Ga_Pt is a table of chemical data - gallium through platinum - for soil samples.

    FIELD_NAME           FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID               Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID             Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID               Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE             Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE            Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Ga_ppm_AES_HF        Number       Double              Gallium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ga_ppm_ES            Number       Double              Gallium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ga_ppm_MS_P          Number       Double              Gallium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ga_ppm_MS_HF         Number       Double              Gallium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ga_ppm_MS_SF         Number       Double              Gallium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Gd_ppm_AES_HF        Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Gd_ppm_ES            Number       Double              Gadolinium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Gd_ppm_MS_HF         Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Gd_ppm_MS_SF         Number       Double              Gadolinium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ge_ppm_ES            Number       Double              Germanium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ge_ppm_MS_P          Number       Double              Germanium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ge_ppm_MS_HF         Number       Double              Germanium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ge_ppm_MS_SF         Number       Double              Germanium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Hf_ppm_ES            Number       Double              Hafnium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Hf_ppm_MS_P          Number       Double              Hafnium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Hf_ppm_MS_SF         Number       Double              Hafnium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Hg_ppm_AA_P          Number       Double              Mercury, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Hg_ppm_AA_CV         Number       Double              Mercury, in parts per million, by cold vapor-atomic absorption spectrophotometry.
    Hg_ppm_AA_TR         Number       Double              Mercury, in parts per million, by thermal release-atomic absorption spectrophotometry.
    Hg_ppm_ES            Number       Double              Mercury, in parts per million, by semi-quant direct-current arc emission spectrography.
    Hg_ppm_MS_P          Number       Double              Mercury, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ho_ppm_AES_HF        Number       Double              Holmium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ho_ppm_ES            Number       Double              Holmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ho_ppm_MS_HF         Number       Double              Holmium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ho_ppm_MS_SF         Number       Double              Holmium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    In_ppm_ES            Number       Double              Indium, in parts per million, by semi-quant direct-current arc emission spectrography.
    In_ppm_MS_P          Number       Double              Indium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    In_ppm_MS_HF         Number       Double              Indium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    In_ppm_MS_SF         Number       Double              Indium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ir_ppm_ES            Number       Double              Iridium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ir_ppm_FA_ES         Number       Double              Iridium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    K_meqgL_AA_P_XC      Number       Double              Potassium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    K_meqgL_AA_P_XS      Number       Double              Potassium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    K_pct_AA             Number       Double              Potassium, in weight percent, by flame-atomic absorption spectrophotometry.
    K_pct_AA_FE          Number       Double              Potassium, in weight percent, by flame emission spectrophotometry.
    K_pct_AES_AR         Number       Double              Potassium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    K_pct_AES_HF         Number       Double              Potassium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    K_pct_AES_SF         Number       Double              Potassium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    K_pct_ES             Number       Double              Potassium, in weight percent, by semi-quant direct-current arc emission spectrography.
    K_pct_MS_P           Number       Double              Potassium, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    K_pct_MS_HF          Number       Double              Potassium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    K_pct_WDX            Number       Double              Potassium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    La_ppm_AES_AR        Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    La_ppm_AES_HF        Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    La_ppm_ES            Number       Double              Lanthanum, in parts per million, by semi-quant direct-current arc emission spectrography.
    La_ppm_MS_P          Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    La_ppm_MS_HF         Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    La_ppm_MS_SF         Number       Double              Lanthanum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Li_ppm_AA            Number       Double              Lithium, in parts per million, by flame-atomic absorption spectrophotometry.
    Li_ppm_AES_AR        Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Li_ppm_AES_HF        Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Li_ppm_AES_SF        Number       Double              Lithium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Li_ppm_ES            Number       Double              Lithium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Li_ppm_MS_P          Number       Double              Lithium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Li_ppm_MS_HF         Number       Double              Lithium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    LOI_pct_GV           Number       Double              Loss on ignition, in weight percent, by gravimetry.
    Lu_ppm_ES            Number       Double              Lutetium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Lu_ppm_MS_SF         Number       Double              Lutetium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Mg_meqgL_AA_P_XC     Number       Double              Magnesium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    Mg_meqgL_AA_P_XS     Number       Double              Magnesium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    Mg_pct_AA            Number       Double              Magnesium, in weight percent, by flame-atomic absorption spectrophotometry.
    Mg_pct_AES_AR        Number       Double              Magnesium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Mg_pct_AES_HF        Number       Double              Magnesium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mg_pct_AES_SF        Number       Double              Magnesium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Mg_pct_ES            Number       Double              Magnesium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Mg_pct_MS_P          Number       Double              Magnesium, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Mg_pct_MS_HF         Number       Double              Magnesium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Mg_pct_WDX           Number       Double              Magnesium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Mn_pct_AES_P         Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Mn_pct_AES_AR        Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Mn_pct_AES_HF        Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mn_pct_AES_SF        Number       Double              Manganese, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Mn_pct_ES            Number       Double              Manganese, in weight percent, by semi-quant direct-current arc emission spectrography.
    Mn_pct_MS_P          Number       Double              Manganese, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Mn_pct_MS_HF         Number       Double              Manganese, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Mn_pct_WDX           Number       Double              Manganese, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Mn_ppm_AA_P          Number       Double              Manganese, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Mo_ppm_AA_P          Number       Double              Molybdenum, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Mo_ppm_AES_P         Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Mo_ppm_AES_AR        Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Mo_ppm_AES_HF        Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Mo_ppm_CM            Number       Double              Molybdenum, in parts per million, by colorimetry.
    Mo_ppm_ES            Number       Double              Molybdenum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Mo_ppm_MS_P          Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Mo_ppm_MS_HF         Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Mo_ppm_MS_SF         Number       Double              Molybdenum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Na_meqgL_AA_P_XC     Number       Double              Sodium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after partial digestion, cation exchange capacity.
    Na_meqgL_AA_P_XS     Number       Double              Sodium, in milliequivalent grams per liter, by flame-atomic absorption spectrophotometry after solution extraction.
    Na_pct_AA_FE         Number       Double              Sodium, in weight percent, by flame emission spectrophotometry.
    Na_pct_AES_AR        Number       Double              Sodium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Na_pct_AES_HF        Number       Double              Sodium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Na_pct_ES            Number       Double              Sodium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Na_pct_MS_P          Number       Double              Sodium, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Na_pct_MS_HF         Number       Double              Sodium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Na_pct_WDX           Number       Double              Sodium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Nb_ppm_AES_AR        Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Nb_ppm_AES_HF        Number       Double              Niobium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Nb_ppm_ES            Number       Double              Niobium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Nb_ppm_MS_P          Number       Double              Niobium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Nb_ppm_MS_HF         Number       Double              Niobium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Nb_ppm_MS_SF         Number       Double              Niobium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Nd_ppm_AES_HF        Number       Double              Neodymium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Nd_ppm_ES            Number       Double              Neodymium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Nd_ppm_MS_HF         Number       Double              Neodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Nd_ppm_MS_SF         Number       Double              Neodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ni_ppm_AA_P          Number       Double              Nickel, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Ni_ppm_AES_P         Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Ni_ppm_AES_AR        Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ni_ppm_AES_HF        Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ni_ppm_AES_SF        Number       Double              Nickel, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ni_ppm_ES            Number       Double              Nickel, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ni_ppm_MS_P          Number       Double              Nickel, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ni_ppm_MS_HF         Number       Double              Nickel, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    NO3_pct_IC           Number       Double              Nitrate, in weight percent, by ion chromatography.
    Os_ppm_ES            Number       Double              Osmium, in parts per million, by semi-quant direct-current arc emission spectrography.
    P_pct_AES_AR         Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    P_pct_AES_HF         Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    P_pct_AES_SF         Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    P_pct_CM             Number       Double              Phosphorus, in weight percent, by colorimetry.
    P_pct_ES             Number       Double              Phosphorus, in weight percent, by semi-quant direct-current arc emission spectrography.
    P_pct_MS_P           Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    P_pct_MS_HF          Number       Double              Phosphorus, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    P_pct_WDX            Number       Double              Phosphorus, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Pb_ppm_AA_P          Number       Double              Lead, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Pb_ppm_AES_P         Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Pb_ppm_AES_AR        Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Pb_ppm_AES_HF        Number       Double              Lead, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Pb_ppm_ES            Number       Double              Lead, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pb_ppm_MS_P          Number       Double              Lead, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Pb_ppm_MS_HF         Number       Double              Lead, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Pb_ppm_MS_SF         Number       Double              Lead, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Pd_ppm_ES            Number       Double              Palladium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pd_ppm_FA_ES         Number       Double              Palladium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Pd_ppm_FA_MS         Number       Double              Palladium, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Pd_ppm_MS_P          Number       Double              Palladium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    pH_SI_INST           Number       Double              pH, in standard units, by instrument.
    pH_SI_INST_P         Number       Double              pH, in standard units, by instrument after partial digestion.
    Pr_ppm_AES_HF        Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Pr_ppm_ES            Number       Double              Praseodymium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pr_ppm_MS_HF         Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Pr_ppm_MS_SF         Number       Double              Praseodymium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Pt_ppm_ES            Number       Double              Platinum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Pt_ppm_FA_ES         Number       Double              Platinum, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Pt_ppm_FA_MS         Number       Double              Platinum, in parts per million, by fire assay and inductively coupled plasma-mass spectroscopy.
    Pt_ppm_MS_P          Number       Double              Platinum, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Soil_Geol is a table of spatial, geologic and descriptive attributes for soil samples.

    FIELD_NAME         FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID             Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID           Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID             Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    SUBMITTER          Text         75                  Name of the individual(s) who submitted the sample in a batch to the laboratory for analysis; not necessarily the sample collector.,
    PROJECT_NAME       Text         50                  Project name, at times derived from a project account number, of work group funded for the collection and analysis of submitted samples.
    COUNTRY            Text         20                  Country or marine body of water from where the sample was collected.
    STATE              Text         2                   Abbreviation of state from where the sample was collected.
    QUAD               Text         25                  Name of 1:250,000-scale quadrangle (1°x2° or 1°x3°) in which sample was collected.
    DATE_SUBMITTED     Date/Time    n/a                 Date sample was submitted to Sample Control for initial database processing prior to sample prep and analysis.
    DATE_COLLECT       Date/Time    n/a                 Date the sample was collected, when recorded.
    LATITUDE           Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE          Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    SPHEROID           Text         25                  Reference spheroid or ellipsoid, when recorded, for the latitude and longitude coordinates of the sample site.
    DATUM              Text         50                  Reference datum, when recorded, for the latitude and longitude coordinates of the sample site.
    LOCATE_DESC        Text         255                 Geographic information relating to the location of the sample site.
    DEPTH              Text         65                  Depth from the surface at which the sample was collected; units are specified by the submitter.
    SAMPLE_SOURCE      Text         40                  Physical setting or environment from which the sample was collected.
    METHOD_COLLECTED   Text         15                  Sample collection method: Single grab, composite, or channel.
    PRIMARY_CLASS      Text         30                  Primary classification of sample media.
    SAMPLE_COMMENT     Text         255                 Attribute used to modify PRIMARY_CLASS, SECONDARY_CLASS, or SPECIFIC_NAME; data is not derived from sample codes.
    ADDL_ATTR          Text         255                 Additional attributes used to modify PRIMARY_CLASS, SECONDARY_CLASS, or SPECIFIC_NAME; derived from sample codes in fields of original databases that do not have equivalent fields in the NGDB.
    GEOLOGIC_AGE       Text         60                  Age or range of ages from the Geological Time Scale for the collected sample.
    STRATIGRAPHY       Text         255                 Name of the stratigraphic unit from which the sample was collected. When present, values are as given by the sample submitter and may represent either a formal name, an informal name, or geologic map unit abbreviation.
    MINERALIZATION     Text         35                  An indication of mineralization or mineralization types as provided by the sample submitter.
    ALTERATION         Text         50                  An indication of the presence or type of alteration noted in the sample by the submitter.
    SAMPLE_ZONE        Text         20                  Soil horizon from which sample was collected.
    HORIZON            Text         20                  Definition of soil sample horizon from which sample was collected.
    SALINE             Text         12                  Saline nature of soil from which sample was collected.
    ORGANICS           Text         20                  Organic content of soil from which sample was collected.
    FERRITIC           Text         13                  Ferritic nature of soil from which sample was collected.
    DRAINAGE           Text         15                  Description of drainage of soil where sample collected.
    PREP               Text         255                 Description of the sample preparation methods used.
    MESH_PORE_SIZE     Text         60                  Sieve size used in field sampling or laboratory preparation to fractionate the sample.
    PREVIOUS_JOB_ID    Text         20                  Original NGDB batch number (JOB_ID) of a USGS resubmitted sample that has been given a new batch number upon resubmittal for further analysis.
    PREVIOUS_LAB_ID    Text         20                  Original NGDB LAB_ID of a USGS resubmitted sample that has been given a new lab number upon resubmittal for further analysis.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf
    Entity_and_Attribute_Overview:
    The table Soil_Rb_Zr is a table of chemical data - rubidium through zirconium - for soil samples.

    FIELD_NAME           FIELD_TYPE   FIELD_SIZE-FORMAT   FIELD_DESC
    
    LAB_ID               Text         8                   Unique identifier assigned to each submitted sample by the Sample Control Officer of the analytical laboratory that received the sample.
    FIELD_ID             Text         16                  Field identifier assigned by the sample collector of sample submitted for analysis, possibly corrected by data renovator due to truncation of data entry.
    JOB_ID               Text         10                  Laboratory batch identifier assigned by the Sample Control Officer of the analytical laboratory that received the samples as a batch.
    LATITUDE             Number       Decimal             Latitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    LONGITUDE            Number       Decimal             Longitude coordinate of sample site, reported in decimal degrees; usually with NAD27 datum and Clarke 1866 spheroid prior to year 2000.
    Rb_ppm_AA            Number       Double              Rubidium, in parts per million, by flame-atomic absorption spectrophotometry.
    Rb_ppm_MS_P          Number       Double              Rubidium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Rb_ppm_MS_HF         Number       Double              Rubidium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Rb_ppm_MS_SF         Number       Double              Rubidium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Re_ppm_ES            Number       Double              Rhenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Re_ppm_MS_P          Number       Double              Rhenium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Re_ppm_MS_HF         Number       Double              Rhenium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Rh_ppm_ES            Number       Double              Rhodium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Rh_ppm_FA_ES         Number       Double              Rhodium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    Ru_ppm_ES            Number       Double              Ruthenium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ru_ppm_FA_ES         Number       Double              Ruthenium, in parts per million, by fire assay and quant direct-current arc emission spectrography.
    S_pct_AES_HF         Number       Double              Total sulfur, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    S_pct_CB             Number       Double              Total sulfur, in weight percent, by combustion.
    S_pct_MS_P           Number       Double              Total sulfur, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    SO4_meqgL_CM_P       Number       Double              Sulfate, in milliequivalent grams per liter, by colorimetry after partial digestion.
    SO4_pct_CB           Number       Double              Sulfate, in weight percent, by combustion.
    SO4_pct_IC           Number       Double              Sulfate, in weight percent, by ion chromatography.
    SatInd_pct_GV        Number       Double              Saturation index, in weight percent, by gravimetry.
    Sb_ppm_AA            Number       Double              Antimony, in parts per million, by flame-atomic absorption spectrophotometry.
    Sb_ppm_AA_P          Number       Double              Antimony, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Sb_ppm_AA_HG         Number       Double              Antimony, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    Sb_ppm_AES_P         Number       Double              Antimony, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Sb_ppm_AES_AR        Number       Double              Antimony, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sb_ppm_CM_P          Number       Double              Antimony, in parts per million, by colorimetry after partial digestion.
    Sb_ppm_ES            Number       Double              Antimony, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sb_ppm_MS_P          Number       Double              Antimony, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Sb_ppm_MS_HF         Number       Double              Antimony, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sb_ppm_MS_SF         Number       Double              Antimony, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sc_ppm_AES_AR        Number       Double              Scandium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sc_ppm_AES_HF        Number       Double              Scandium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sc_ppm_ES            Number       Double              Scandium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sc_ppm_MS_P          Number       Double              Scandium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Sc_ppm_MS_HF         Number       Double              Scandium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sc_ppm_MS_SF         Number       Double              Scandium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Se_ppm_AA_HG         Number       Double              Selenium, in parts per million, by hydride generation-atomic absorption spectrophotometry.
    Se_ppm_AES_P         Number       Double              Selenium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Se_ppm_MS_P          Number       Double              Selenium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Se_ppm_MS_HF         Number       Double              Selenium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Si_pct_ES            Number       Double              Silicon, in weight percent, by semi-quant direct-current arc emission spectrography.
    Si_pct_WDX           Number       Double              Silicon, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Sm_ppm_AES_HF        Number       Double              Samarium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sm_ppm_ES            Number       Double              Samarium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sm_ppm_MS_HF         Number       Double              Samarium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sm_ppm_MS_SF         Number       Double              Samarium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Sn_ppm_AES_AR        Number       Double              Tin, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sn_ppm_AES_HF        Number       Double              Tin, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sn_ppm_ES            Number       Double              Tin, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sn_ppm_MS_P          Number       Double              Tin, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Sn_ppm_MS_HF         Number       Double              Tin, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Sn_ppm_MS_SF         Number       Double              Tin, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    SpCon_uScm_INST_P    Number       Double              Specific conductivity, in microsiemens per centimeter, by instrument after partial digestion.
    SplWtFA_g_GV         Number       Double              Sample weight for fire assay analysis, in grams, by gravimetry.
    Sr_ppm_AES_AR        Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Sr_ppm_AES_HF        Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Sr_ppm_AES_SF        Number       Double              Strontium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Sr_ppm_ES            Number       Double              Strontium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Sr_ppm_MS_P          Number       Double              Strontium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Sr_ppm_MS_HF         Number       Double              Strontium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ta_ppm_AES_HF        Number       Double              Tantalum, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ta_ppm_ES            Number       Double              Tantalum, in parts per million, by semi-quant direct-current arc emission spectrography.
    Ta_ppm_MS_P          Number       Double              Tantalum, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ta_ppm_MS_SF         Number       Double              Tantalum, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tb_ppm_AES_HF        Number       Double              Terbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Tb_ppm_ES            Number       Double              Terbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tb_ppm_MS_HF         Number       Double              Terbium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Tb_ppm_MS_SF         Number       Double              Terbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Te_ppm_AA            Number       Double              Tellurium, in parts per million, by flame-atomic absorption spectrophotometry.
    Te_ppm_ES            Number       Double              Tellurium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Te_ppm_MS_P          Number       Double              Tellurium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Te_ppm_MS_HF         Number       Double              Tellurium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Th_ppm_AES_HF        Number       Double              Thorium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Th_ppm_DN            Number       Double              Thorium, in parts per million, by delayed neutron counting.
    Th_ppm_ES            Number       Double              Thorium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Th_ppm_MS_P          Number       Double              Thorium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Th_ppm_MS_HF         Number       Double              Thorium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Th_ppm_MS_SF         Number       Double              Thorium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Ti_pct_AES_AR        Number       Double              Titanium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Ti_pct_AES_HF        Number       Double              Titanium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Ti_pct_AES_SF        Number       Double              Titanium, in weight percent, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Ti_pct_ES            Number       Double              Titanium, in weight percent, by semi-quant direct-current arc emission spectrography.
    Ti_pct_MS_P          Number       Double              Titanium, in weight percent, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Ti_pct_MS_HF         Number       Double              Titanium, in weight percent, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Ti_pct_WDX           Number       Double              Titanium, in weight percent, by wavelength-dispersive X-ray fluorescence spectroscopy.
    Tl_ppm_AA            Number       Double              Thallium, in parts per million, by flame-atomic absorption spectrophotometry.
    Tl_ppm_ES            Number       Double              Thallium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tl_ppm_MS_P          Number       Double              Thallium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Tl_ppm_MS_HF         Number       Double              Thallium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Tl_ppm_MS_SF         Number       Double              Thallium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Tm_ppm_ES            Number       Double              Thulium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Tm_ppm_MS_HF         Number       Double              Thulium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Tm_ppm_MS_SF         Number       Double              Thulium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    U_ppm_AES_HF         Number       Double              Uranium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    U_ppm_DN             Number       Double              Uranium, in parts per million, by delayed neutron counting.
    U_ppm_ES             Number       Double              Uranium, in parts per million, by semi-quant direct-current arc emission spectrography.
    U_ppm_FL             Number       Double              Uranium, in parts per million, by fluorimetry.
    U_ppm_MS_P           Number       Double              Uranium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    U_ppm_MS_HF          Number       Double              Uranium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    U_ppm_MS_SF          Number       Double              Uranium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    V_ppm_AES_AR         Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    V_ppm_AES_HF         Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    V_ppm_AES_SF         Number       Double              Vanadium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    V_ppm_ES             Number       Double              Vanadium, in parts per million, by semi-quant direct-current arc emission spectrography.
    V_ppm_MS_P           Number       Double              Vanadium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    V_ppm_MS_HF          Number       Double              Vanadium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    W_ppm_AES_P          Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    W_ppm_AES_AR         Number       Double              Tungsten, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    W_ppm_CM             Number       Double              Tungsten, in parts per million, by colorimetry.
    W_ppm_CM_P           Number       Double              Tungsten, in parts per million, by colorimetry after partial digestion.
    W_ppm_ES             Number       Double              Tungsten, in parts per million, by semi-quant direct-current arc emission spectrography.
    W_ppm_MS_P           Number       Double              Tungsten, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    W_ppm_MS_HF          Number       Double              Tungsten, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    W_ppm_MS_SF          Number       Double              Tungsten, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    W_ppm_NA             Number       Double              Tungsten, in parts per million, by neutron activation.
    Y_ppm_AES_AR         Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Y_ppm_AES_HF         Number       Double              Yttrium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Y_ppm_ES             Number       Double              Yttrium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Y_ppm_MS_P           Number       Double              Yttrium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Y_ppm_MS_HF          Number       Double              Yttrium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Y_ppm_MS_SF          Number       Double              Yttrium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Yb_ppm_AES_HF        Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Yb_ppm_ES            Number       Double              Ytterbium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Yb_ppm_MS_HF         Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Yb_ppm_MS_SF         Number       Double              Ytterbium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    Zn_ppm_AA            Number       Double              Zinc, in parts per million, by flame-atomic absorption spectrophotometry.
    Zn_ppm_AA_P          Number       Double              Zinc, in parts per million, by flame-atomic absorption spectrophotometry after partial digestion.
    Zn_ppm_AES_P         Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after partial digestion/leach.
    Zn_ppm_AES_AR        Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Zn_ppm_AES_HF        Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after multi-acid digestion with HF.
    Zn_ppm_AES_SF        Number       Double              Zinc, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Zn_ppm_ES            Number       Double              Zinc, in parts per million, by semi-quant direct-current arc emission spectrography.
    Zn_ppm_MS_P          Number       Double              Zinc, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Zn_ppm_MS_HF         Number       Double              Zinc, in parts per million, by inductively coupled plasma-mass spectroscopy after multi-acid digestion with HF.
    Zr_ppm_AES_AR        Number       Double              Zirconium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after aqua regia digestion.
    Zr_ppm_AES_SF        Number       Double              Zirconium, in parts per million, by inductively coupled plasma-atomic emission spectroscopy after sinter or fusion digestion.
    Zr_ppm_ES            Number       Double              Zirconium, in parts per million, by semi-quant direct-current arc emission spectrography.
    Zr_ppm_MS_P          Number       Double              Zirconium, in parts per million, by inductively coupled plasma-mass spectroscopy after partial digestion.
    Zr_ppm_MS_SF         Number       Double              Zirconium, in parts per million, by inductively coupled plasma-mass spectroscopy after sinter or fusion digestion.
    
    Entity_and_Attribute_Detail_Citation: https://pubs.usgs.gov/ds/637/contents/DS637_pamphlet_508.pdf

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Matthew Granitto
    • Elizabeth A. Bailey
    • Jeanine M. Schmidt
    • Nora B. Shew
    • Bruce M. Gamble
    • Keith A. Labay
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    Matthew Granitto
    U.S. Geological Survey
    Box 25046, Denver Federal Center, MS 973
    Denver, Colorado
    United States of America

    1-303-236-1412 (voice)
    1-303-236-3200 (FAX)
    granitto@usgs.gov

Why was the data set created?

This database was initiated, designed, and populated to compile and integrate geochemical data from Alaska in order to facilitate geologic mapping, petrologic studies, mineral resource assessments, definition of geochemical baseline values and statistics, environmental impact assessments, and studies in medical geology. This Microsoft Access database serves as a data warehouse in support of present and future Alaskan geologic and geochemical projects, and contains data tables describing historical and new quantitative and qualitative geochemical analyses.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
    Date: 1998 (process 1 of 2)
    Most of the data were generated by the Geologic Discipline analytical laboratories of the U.S. Geological Survey, beginning in the early 1960s. A small portion of these data predate this larger dataset and were never entered in any databases. Upon completion of the chemical analysis, the data were stored in the RASS database (1963 to 1987), the PLUTO database (1979 to 1997), or the specific commercial laboratory-information-management software (LIMS) used by the USGS analytical laboratories (1996 to present). Data from all three sources were combined, reformatted, and standardized into the Oracle-based National Geochemical Database (NGDB).

    To create this data set, geologic material sample data were retrieved from the NGDB using the following criteria: 1) Each sample must have a valid and unique lab number; 2) Each sample must have latitude and longitude coordinates; and 3) Each sample must be identified as a rock, a sediment, a soil, or a heavy-mineral concentrate. This data set was then examined to remove any samples that could be identified as a processed derivative of a rock, a sediment, or a soil except for concentrates. This included single minerals, mineral separates, rock coatings, insoluble residues, partial digestions, leachates, experimental or artificial samples, and some misidentified samples. An effort was made to fix incorrect or incomplete attributes. Several standardized sample descriptive fields were more completely populated using information previously found only in comment fields. The sample location and descriptive data were repackaged into a single table called Geol. The sample location and descriptive data were again repackaged into 7 tables based upon media type: HMC_Geol, Mnrl_Geol, Rock_E_Geol, Rock_W_Geol, Sed_E_Geol, Sed_W_Geol, and Soil_Geol.

    Analytical data associated with these samples were retrieved from the NGDB using the following criteria: 1) Each analytical determination must be linked to a valid and unique sample lab number; and 2) Each analytical determination must be identified by analyte. This data set was then examined to remove determinations that were requested but not completed, determinations that could not be quantified due to instrumental interferences, and duplicate determinations. In addition, multiple variations of similar analytical methods were consolidated into a single method name by element. For example: data for 17 variations of emission spectrographic determination for zinc were all combined into a single field called Zn_ppm_ES. These data were repackaged into a single table called Chem. The analytical data were again repackaged into 26 tables based upon media type and the consolidated analytical methods: HMC_Ag-Mg, HMC_Mn-Zr, Mnrl_Ag-Ga, Mnrl_Gd-Pt, Mnrl_Rb-Zr, Rock_E_Majors, Rock_E_Traces_Ag-Cr, Rock_E_Traces_Cs-Na, Rock_E_Traces_Nb-Sr, Rock_E_Traces_Ta-Zr, Rock_W_Majors, Rock_W_Traces_Ag-Cr, Rock_W_Traces_Cs-Na, Rock_W_Traces_Nb-Sr, Rock_W_Traces_Ta-Zr, Sed_E_Ag-Cr, Sed_E_Cs-Mn, Sed_E_Mo-Se, Sed_E_Si-Zr, Sed_W_Ag-Cr, Sed_W_Cs-Mn, Sed_W_Mo-Se, Sed_W_Si-Zr, Soil_Ag-Fe, Soil_Ga-Pt, and Soil_Rb-Zr. Person who carried out this activity:
    Matthew Granitto
    U.S. Geological Survey
    Box 25046, Denver Federal Center, MS 973
    Denver, Colorado
    United States of America

    1-303-236-1412 (voice)
    1-303-236-3200 (FAX)
    granitto@usgs.gov
    Date: Nov-2011 (process 2 of 2)
    Rearranged data to make available through the Mineral Resources Online Spatial Data web site, with enhanced interfaces for viewing individual records and for selecting and downloading subsets of the data. Modifications to metadata in Detailed_Description reflect the tables available through MRData.usgs.gov. Modified bibliography table to include additional online linkages for references, and to include the USGS Publications Warehouse identifier where one applies as a shortened identifier for the publication. Person who carried out this activity:
    Peter N Schweitzer
    USGS ER GD
    Geologist
    12201 Sunrise Valley Drive
    Reston, VA
    USA

    703-648-6533 (voice)
    703-648-6252 (FAX)
    pschweitzer@usgs.gov
    Data sources used in this process: Data sources produced in this process:
  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    The data of this dataset represent analyses of geologic material samples collected in support of various USGS programs. The historical geochemical databases of the Geologic Discipline in the USGS were created with the intent of storing data predominately for regional projects. The new combined National Geochemical Database is an agglomerate of data from projects that had differing analytical needs and that ranged in scale from studies of an outcrop to reconnaissance surveys of an entire state or country. Initially, the intended user of the data was the original submitter or associated project personnel, and the primary means of publicly releasing data were hardcopy USGS reports, as well as professional journals. Within this paradigm, some decisions were made which have affected the completeness and accuracy of the attributes within the database.

    1) Coordinates: When samples were brought in for analysis, the submitter was required to include information about the sample for the database; descriptions, geocoding, and latitude-longitude coordinates. In the days before map digitizing boards and GPS units were common, the determination of coordinates from field sheets was a time consuming and error prone process. In order to facilitate the analysis of samples, a decision was made to allow submitters to enter the coordinates for the lower right (southeast) corner of the submitter's working field map on which the samples could be plotted, which was most commonly a 7.5' or 15' quadrangle map. In theory, the precise coordinates for these samples would be determined and added to the database at a later date. In practice, most of these precise coordinates were used in the USGS Open-File data releases but were never entered back into the PLUTO database. Therefore, the precision of coordinates in the PLUTO database varies from "good to the nearest second of latitude or longitude" to "good to the nearest 15 minutes of latitude or longitude".
    2) Geocoding: The submission of sample descriptive information (geocoding) with samples was mandatory for some fields and optional for others. Therefore, the completeness of geocoding can vary. In addition, most geocodes were not checked for completeness, accuracy, or validity during data entry into the early databases. Therefore the database contains some incorrect and invalid codes.
    3) Analytical Data: The samples in this data set were chemically analyzed by a variety of techniques over a period of time from the early 1960's to the present. The accuracy of the data varies with the analytical methodology and with the concentration of the element being analyzed.
    4) Qualifiers: A qualifier such as "N" (less than the detection limit of the analytical method) or "G" (greater than the upper determination limit of the analytical method) accompanies some analytical data values. These qualifiers are defined as follows:
    "L" = the element was detected by the technique but at a level below the lower limit of determination for the method. The value of the lower limit of determination is given in the adjacent data field.
    "G" or ">" = the element was measured at a concentration greater than the upper determination limit for the method. The upper limit of determination is given in the adjacent data field.
    "N" = the element was not detected at concentrations above the lower limit of determination for the method. The value of the lower limit of determination is given in the adjacent data field.
    "<" = the element concentration was determined to be less than the lower determination limit for the method for this element. The value of the lower limit of determination is given in the adjacent data field.
    
  2. How accurate are the geographic locations?
    1) Coordinates: Most of the more recently submitted samples were located using GPS receivers. The locations determined by GPS should be accurate to the nearest latitude or longitude second. Older sample locations were determined primarily from USGS topographic maps of various scales. Sometimes these coordinates were determined directly from the original maps using a digitizing board. In other cases, a clear overlay with a coordinate grid was used to visually estimate the sample position on the map. The positional accuracy is dependant on the scale of the map from which the determination was made as well as the care taken by the individual(s) who plotted the sample or who made the coordinate determination. Unfortunately, some location coordinates were not carefully determined.

    The determination of coordinates from field sheets was a time consuming and error prone process. In order to facilitate the analysis of samples, a decision was made to allow samples to be submitted to the laboratory using only the coordinates for the lower right (southeast) corner of the submitter's working field map on which the samples could be plotted, which was most commonly a 7.5' or 15' quadrangle map. In theory, the precise coordinates for these samples would be determined and added to the database at a later date. In practice, most of these more precise coordinates were used in resultant USGS Open-File data releases or publications but were never entered back into the database.

    When submitters reported locations as degrees, minutes, and seconds of latitude and longitude the accuracy should be within a few seconds. When submitters only reported locations as degrees and minutes the accuracy is only to the nearest minute. When submitters only reported the corner coordinates of their field map, the accuracy is only to the nearest 7.5 or 15 minutes.

    2) Datum and Earth Ellipsoid or Spheroid: When coordinates were submitted from GPS receivers or when the source of the coordinates were known, the datum and spheroid are identified in two fields that accompany the locational coordinates. For the majority of the data, these fields are empty. Since most of the older coordinate data in the database were determined from published maps, the best assumption is that the appropriate datum and spheroid is the one most conmmonly used for those types of maps. In the United States, most field maps were USGS topographic maps that used NAD27 (1927 North American datum) based on the Clarke 1866 ellipsoid. Using the wrong ellipsoid or datum may result in a location that is offset by up to a couple hundred feet.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    This data set provides chemical data for Ag, Al, As, Au, B, Ba, Be, Bi, Br, Ca, Cd, Ce, Cl, Co, Cr, Cs, Cu, Dy, Er, Eu, Ga, Gd, Ge, F, Fe, Hf, Hg, Ho, I, In, Ir, K, La, Li, Lu, Mg, Mn, Mo, Na, Nb, Nd, Ni, Os, P, Pb, Pd, Pr, Pt, Rb, Re, Rh, Rn, Ru, S, Sb, Sc, Se, Si, Sm, Sn, Sr, Ta, Tb, Te, Th, Ti, Tl, Tm, U, V, W, Y, Yb, Zn, Zr, forms of carbon, forms of sulfur, forms of water, conductance, pH, density, and loss on ignition. In addition, the data set provides location and descriptive information for each sample. Not all the descriptive fields contain information for a particular sample because it was not recorded by the submitter or because it was never entered into the database. No sample will contain analyses for all possible elements. The analytical methods used were selected by the sample submitter based on the goals of the individual project and will vary throughout the data set. The analytical methods, sample preparation protocols, and quality control protocols used for various sample media by the USGS are documented in the bibliography table included in the database.

    The number and type of chemical analyses included in each 1:250,000 scale quadrangle is shown by https://mrdata.usgs.gov/agdb/inventory.php
  5. How consistent are the relationships among the observations, including topology?
    The AGDB dataset was constructed by processing a subset of the original National Geochemical Database (NGDB), adding relevant datasets that were not yet in the NGDB, checking for errors where possible, and using various selection criteria. The following criteria were chosen for selecting data for the rock data set:
    Each sample must have a valid and unique lab number.
    Each sample must have a latitude and longitude.
    Each sample must be identified as geologic material (rock, sediment, soil, mineral or concentrate).
    Each analytical determination must be linked to a valid and unique lab number.
    Each analytical determination must be identified by analyte.
    
    In addition, samples that could be identified as a processed derivative of geologic material, with the exception of heavy-mineral concentrates, were removed from the data set. This included single minerals, mineral separates, rock coatings, insoluble residues, partial digestions, and leachates.

    The samples in this data set were collected for a variety of purposes. Not all samples were subject to the same sample preparation protocol or the same analytical protocol. The samples have been analyzed using documented techniques. For some elements, the methods of chemical analysis were the same throughout the study, while for others, the methods changed as analytical technology improved. Some of the methods used were specifically designed to give a concentration value based on a partial digestion or extraction of the sample. For these methods elements tightly bound in the structure of silicates in the sample are not measured. Therefore, the analytical results from these partial extraction techniques may not be comparable with results from methods designed to measure the total concentration of an element in a sample.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: none
Use_Constraints:
Users are required to determine the suitability of use for any particular purpose.
  1. Who distributes the data set? (Distributor 1 of 2)
    U.S. Geological Survey
    USGS Information Services
    Denver, Colorado
    United States of America

    1-800-ASK-USGS (voice)
  2. What's the catalog number I need to order this data set? USGS DS-637
  3. What legal disclaimers am I supposed to read?
    These data are released on the condition that neither the U.S. Geological Survey (USGS) nor the United States Government may be held liable for any damages resulting from authorized or unauthorized use. The USGS makes no warranties, either expressed or implied as to any other matter, whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user.

    Any use of trade, product or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Geological Survey.

    Although this information product, for the most part, is in the public domain, it also contains copyrighted materials as noted in the text. Permission to reproduce copyrighted items for other than personal use must be secured from the copyright owner.

    This database, identified as DS 637, has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.

    Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.
  4. How can I download or order the data?

  1. Who distributes the data set? (Distributor 2 of 2)
    U.S. Geological Survey
    Mail Stop 954 USGS National Center
    Reston, Virginia
    USA

    703-648-6533 (voice)
    pschweitzer@usgs.gov
  2. What's the catalog number I need to order this data set? USGS DS-637
  3. What legal disclaimers am I supposed to read?
    These data are released on the condition that neither the U.S. Geological Survey (USGS) nor the United States Government may be held liable for any damages resulting from authorized or unauthorized use. The USGS makes no warranties, either expressed or implied as to any other matter, whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user.

    Any use of trade, product or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Geological Survey.

    Although this information product, for the most part, is in the public domain, it also contains copyrighted materials as noted in the text. Permission to reproduce copyrighted items for other than personal use must be secured from the copyright owner.

    This database, identified as DS 637, has been approved for release and publication by the Director of the USGS. Although this database has been subjected to rigorous review and is substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, it is released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.

    Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 07-Dec-2016
Metadata author:
Matthew Granitto
U.S. Geological Survey
Box 25046, Denver Federal Center, MS 973
Denver, Colorado
United States of America

1-303-236-1412 (voice)
1-303-236-3200 (FAX)
granitto@usgs.gov
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

This page is <https://mrdata.usgs.gov/metadata/ds-637.faq.html>
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