Metadata: Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Title: National Geochemical Database: Sediment Publication_Date: 2016 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://mrdata.usgs.gov/ngdb/sediment/ Description: Abstract: Geochemical analysis of sediment samples from the National Geochemical Database. Primarily inorganic elemental concentrations, most samples are of stream sediment in the continental US and Alaska. Samples were collected and analyzed over many decades, beginning in the 1960s, though some samples may have been collected earlier. Purpose: The National Geochemical Database is a curated repository intended to contain all geochemical analyses carried out by and for geological studies conducted by the U.S. Geological Survey. Sample characteristics, including the location from which the sample was taken, and characteristics of the location and nearby geographic area, are included as well as analytical determinations of the concentration of elements and other chemical species. The work of USGS is strongly concentrated in earth sciences, so most of the analyses are of inorganic components. Likewise as a US Federal government organization, the work of USGS focuses on areas governed by the United States. Samples are located throughout the world, but most of the samples come from the US. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19621206 Ending_Date: 20051116 Currentness_Reference: Dates samples were submitted for analysis Status: Progress: In work Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -179.36667 East_Bounding_Coordinate: 179.9425 North_Bounding_Coordinate: 74.90833333 South_Bounding_Coordinate: -49.81222222 Access_Constraints: none Use_Constraints: none Keywords: Theme: Theme_Keyword_Thesaurus: General glossary for mineral resources spatial data Theme_Keyword: comma-delimited text Theme_Keyword: DBF Theme_Keyword: HTML table Theme_Keyword: shapefile Theme_Keyword: tab-delimited text Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: aluminum Theme_Keyword: antimony Theme_Keyword: arsenic Theme_Keyword: atomic absorption analysis Theme_Keyword: atomic emission spectroscopy Theme_Keyword: barium Theme_Keyword: beryllium Theme_Keyword: bismuth Theme_Keyword: boron Theme_Keyword: bromine Theme_Keyword: cadmium Theme_Keyword: calcium Theme_Keyword: cerium Theme_Keyword: cesium Theme_Keyword: chlorine Theme_Keyword: chromatography Theme_Keyword: chromium Theme_Keyword: cobalt Theme_Keyword: copper Theme_Keyword: dysprosium Theme_Keyword: erbium Theme_Keyword: europium Theme_Keyword: fluorine Theme_Keyword: gadolinium Theme_Keyword: gallium Theme_Keyword: geochemistry Theme_Keyword: geospatial datasets Theme_Keyword: germanium Theme_Keyword: gold Theme_Keyword: hafnium Theme_Keyword: holmium Theme_Keyword: indium Theme_Keyword: iodine Theme_Keyword: iron Theme_Keyword: iridium Theme_Keyword: lanthanum Theme_Keyword: lead Theme_Keyword: lithium Theme_Keyword: lutetium Theme_Keyword: magnesium Theme_Keyword: manganese Theme_Keyword: mass spectroscopy Theme_Keyword: mercury Theme_Keyword: molybdenum Theme_Keyword: neodymium Theme_Keyword: neutron activation analysis Theme_Keyword: nickel Theme_Keyword: niobium Theme_Keyword: nitrogen Theme_Keyword: osmium Theme_Keyword: palladium Theme_Keyword: phosphorus Theme_Keyword: platinum Theme_Keyword: potassium Theme_Keyword: praseodymium Theme_Keyword: rhenium Theme_Keyword: rhodium Theme_Keyword: rubidium Theme_Keyword: ruthenium Theme_Keyword: samarium Theme_Keyword: scandium Theme_Keyword: selenium Theme_Keyword: silicon Theme_Keyword: silver Theme_Keyword: sodium Theme_Keyword: strontium Theme_Keyword: sulfur Theme_Keyword: tantalum Theme_Keyword: tellurium Theme_Keyword: terbium Theme_Keyword: thallium Theme_Keyword: thorium Theme_Keyword: thulium Theme_Keyword: tin Theme_Keyword: titanium Theme_Keyword: tungsten Theme_Keyword: unconsolidated deposits Theme_Keyword: uranium Theme_Keyword: vanadium Theme_Keyword: web map services Theme_Keyword: x-ray fluorescence Theme_Keyword: ytterbium Theme_Keyword: yttrium Theme_Keyword: zinc Theme_Keyword: zirconium Place: Place_Keyword_Thesaurus: Common geographic areas Place_Keyword: fAF = Afghanistan Place_Keyword: fUS01 = Alabama Place_Keyword: fUS04 = Arizona Place_Keyword: fUS05 = Arkansas Place_Keyword: fBG = Bangladesh Place_Keyword: fBL = Bolivia Place_Keyword: fBR = Brazil Place_Keyword: fUS06 = California Place_Keyword: fCB = Cambodia Place_Keyword: fCA = Canada Place_Keyword: fCI = Chile Place_Keyword: fCH = China Place_Keyword: fUS08 = Colorado Place_Keyword: fUS09 = Connecticut Place_Keyword: fUS10 = Delaware Place_Keyword: fUS64 = Federated States of Micronesia Place_Keyword: fUS12 = Florida Place_Keyword: fFR = France Place_Keyword: fUS13 = Georgia Place_Keyword: fUS66 = Guam Place_Keyword: fUS16 = Idaho Place_Keyword: fUS17 = Illinois Place_Keyword: fIN = India Place_Keyword: fUS18 = Indiana Place_Keyword: fID = Indonesia Place_Keyword: fUS19 = Iowa Place_Keyword: fIR = Iran Place_Keyword: fUS20 = Kansas Place_Keyword: fUS21 = Kentucky Place_Keyword: fUS22 = Louisiana Place_Keyword: fUS23 = Maine Place_Keyword: fUS24 = Maryland Place_Keyword: fUS25 = Massachusetts Place_Keyword: fMX = Mexico Place_Keyword: fUS26 = Michigan Place_Keyword: fUS27 = Minnesota Place_Keyword: fUS28 = Mississippi Place_Keyword: fUS29 = Missouri Place_Keyword: fUS30 = Montana Place_Keyword: fMO = Morocco Place_Keyword: fUS31 = Nebraska Place_Keyword: fNP = Nepal Place_Keyword: fUS32 = Nevada Place_Keyword: fUS33 = New Hampshire Place_Keyword: fUS34 = New Jersey Place_Keyword: fUS35 = New Mexico Place_Keyword: fUS36 = New York Place_Keyword: fUS37 = North Carolina Place_Keyword: fUS38 = North Dakota Place_Keyword: fUS69 = Northern Mariana Islands Place_Keyword: fNO = Norway Place_Keyword: fUS39 = Ohio Place_Keyword: fUS40 = Oklahoma Place_Keyword: fUS41 = Oregon Place_Keyword: fPS = Palau Place_Keyword: fUS42 = Pennsylvania Place_Keyword: fRP = Philippines Place_Keyword: fPO = Portugal Place_Keyword: fUS72 = Puerto Rico Place_Keyword: fUS44 = Rhode Island Place_Keyword: fUS45 = South Carolina Place_Keyword: fUS46 = South Dakota Place_Keyword: fSP = Spain Place_Keyword: fNS = Suriname Place_Keyword: fUS47 = Tennessee Place_Keyword: fUS48 = Texas Place_Keyword: fTU = Turkey Place_Keyword: fTX = Turkmenistan Place_Keyword: fUS49 = Utah Place_Keyword: fUS50 = Vermont Place_Keyword: fUS51 = Virginia Place_Keyword: fUS53 = Washington Place_Keyword: fUS54 = West Virginia Place_Keyword: fUS55 = Wisconsin Place_Keyword: fUS56 = Wyoming Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Steven M Smith Contact_Organization: Southwest Region Contact_Position: Geologist Contact_Address: Address_Type: mailing address Address: U.S. Geological Survey Box 25046 Mail Stop 973 Denver Federal Center City: Denver State_or_Province: CO Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: 303-236-1192 Contact_Facsimile_Telephone: 303-236-3200 Contact_Electronic_Mail_Address: smsmith@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://mrdata.usgs.gov/ngdb/sediment/ngdbsed-large.png Browse_Graphic_File_Description: Schematic map showing sample density in the conterminous US, (768 x 512 pixels) Browse_Graphic_File_Type: PNG Data_Quality_Information: Logical_Consistency_Report: The samples described in the database were collected by a wide variety of researchers over a long period of time, and the analyses conducted on those samples were carried out for varying purposes. In addition, the sample preparation and analytical methodology varied through time as the technology available changed. The result is that samples may not be directly comparable due to differences in sampling procedure, preparation, analytical instrumentation, or choice of chemical species to analyze. Completeness_Report: In general, chemical analyses were carried out to pursue specific scientific objectives of a research project. Consequently there are no samples for which results were determined for every possible chemical analysis described in this database. Some analyses were rarely performed, and some were commonly performed. The table below shows, of the 335,026 samples, how many include an analysis, by any method, of each chemical species, with the proportion of samples (expressed as percent) for which an analysis of that chemical species was reported. > Species Samples Percent analyzed >------------------------------------ > Ag 306098 91.0% > Al 103967 31.0% > As 301766 90.0% > Au 291781 87.0% > B 220731 65.0% > Ba 295186 88.0% > Be 297407 88.0% > Bi 297086 88.0% > Br 1148 0.0% > Ca 293580 87.0% > C_crb 10426 3.0% > Cd 299208 89.0% > Ce 100061 29.0% > Cl 959 0.0% > Co 297568 88.0% > CO2 4131 1.0% > C_org 10301 3.0% > Cr 299159 89.0% > Cs 12259 3.0% > C_tot 12747 3.0% > Cu 307410 91.0% > Dy 7084 2.0% > Er 7077 2.0% > Eu 83649 24.0% > F 6708 2.0% > Fe 296605 88.0% > Ga 111971 33.0% > Gd 7112 2.0% > Ge 35116 10.0% > Hf 15267 4.0% > Hg 96627 28.0% > Ho 79251 23.0% > I 295 0.0% > In 14886 4.0% > Ir 6533 1.0% > K 96251 28.0% > La 291475 87.0% > Li 101599 30.0% > Lu 10655 3.0% > Mg 293871 87.0% > Mn 298943 89.0% > Mo 299589 89.0% > N 883 0.0% > Na 120052 35.0% > Nb 290420 86.0% > Nd 82287 24.0% > Ni 299184 89.0% > Os 5480 1.0% > P 121758 36.0% > Pb 308204 91.0% > Pd 17637 5.0% > Pr 9508 2.0% > Pt 16870 5.0% > Rb 13198 3.0% > Re 12660 3.0% > Rh 6128 1.0% > Ru 6119 1.0% > S 11998 3.0% > Sb 257566 76.0% > Sc 288005 85.0% > Se 51644 15.0% > Si 19378 5.0% > Sm 13820 4.0% > Sn 292452 87.0% > SplWtAu 10349 3.0% > SplWtFA 240 0.0% > Sr 292511 87.0% > Ta 87913 26.0% > Tb 11774 3.0% > Te 21229 6.0% > Th 215034 64.0% > Ti 295109 88.0% > Tl 30514 9.0% > Tm 6646 1.0% > U 113994 34.0% > V 302037 90.0% > W 233285 69.0% > Y 297188 88.0% > Yb 84369 25.0% > Zn 314115 93.0% > Zr 218529 65.0% Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Uncertainty of the point locations is exprssed, where this could be determined, in the field coord_prec_est. The information provided there accounts for the common and officially accepted practice, in years past, of specifying sampling locations by the southeast corner of the map quadrangle from which the sample was taken, and other indications that the original coordinates were expressed with limited precision. Yes, we know that accuracy and precision are not the same thing. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Sample depth is given as reported by the original investigator, and the compiler had no independent way to check those values. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2001 Title: Geochemistry of unconsolidated sediments in the US from the PLUTO database Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://mrdata.usgs.gov/pluto/sediment/ Larger_Work_Citation: Citation_Information: Originator: Baedecker, Philip A. Originator: Grossman, Jeffrey N. Originator: Buttleman, Kim P. Publication_Date: 1998 Title: National Geochemical data base: PLUTO geochemical data base for the United States Geospatial_Data_Presentation_Form: Tabular digital data Series_Information: Series_Name: U.S. Geological Survey Digital Data Series Issue_Identification: DDS-47 Online_Linkage: https://pubs.er.usgs.gov/publication/ds47 Type_of_Source_Media: Digital and paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: PLUTO Source_Contribution: Sediment analyses from PLUTO were consolidated into the NGDB Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2001 Title: Geochemistry of unconsolidated sediments in the US from the RASS database Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: https://mrdata.usgs.gov/rass/sediment/ Type_of_Source_Media: Digital files and paper records Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1996 Source_Currentness_Reference: An unpublished CD-ROM was developed in 1996 that contains the RASS data in GSSEARCH format. Source_Citation_Abbreviation: RASS Source_Contribution: Sediment geochemical analyses from the RASS database were combined into NGDB Process_Step: Process_Description: Chemical analyses were carried out by USGS laboratories or by other organizations contracted by USGS to carry out those analyses, over a period of decades; these results begin in the 1960s and continue to this day. Much of the data now in the NGDB had been previously compiled into other collections such as PLUTO and RASS. Those older databases are now subsumed into the NGDB and the sediment sample analyses they contained are represented here. This process occurred over many decades, and the current compilation has reached maturity in 2016. Process_Date: 2016 Process_Step: Process_Description: The Best Value data set is a subset of data that represents one "best value" per species for each of its samples. This data set was created by ranking analytical methods, taking into account factors which vary between methods. These include weight of sample analyzed, method of decomposition of the sample during the preparation for analysis, sensitivity and accuracy of the instrument used in each method, upper and lower limits of detection for a given element by a given method, the age of the method and stage of its development when a specific analysis was performed, and the exact analytical laboratory and equipment used. The dataset was populated, species by species, first with detected values, from the highest ranked analytical method to the lowest, and then with non-detect values, from the lowest to the highest. Each "best value" per species per sample has a value, an analytical method code for that value, and a summary of one or more possible values from which the "best value" was derived. 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Country from where the sample was collected. Textual values of no more than 32 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Place or area names, mostly unabbreviated, including bodies of water. Attribute: Attribute_Label: lat_wgs84 Attribute_Definition: Latitude (WGS84). Latitude coordinate of sample site converted, if necessary, to the WGS84 datum, reported in decimal degrees. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -49.81222222 Range_Domain_Maximum: 74.90833333 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: long_wgs84 Attribute_Definition: Longitude (WGS84). Longitude coordinate of sample site converted, if necessary, to the WGS84 datum, reported in decimal degrees. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -179.36667 Range_Domain_Maximum: 179.9425 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: datum_orig Attribute_Definition: Original datum. Original reference datum, when recorded, for the latitude and longitude coordinates of the sample site. Values in (parentheses) are a best estimate for original datum values that were not recorded. Textual values of no more than 64 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: European 1950 Enumerated_Domain_Value_Definition: European 1950 (which variant is not specified) Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Indonesian 1974 Enumerated_Domain_Value_Definition: Indonesian 1974 Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NAD27 Enumerated_Domain_Value_Definition: North American Datum of 1927 Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NAD83 Enumerated_Domain_Value_Definition: North American Datum of 1983 Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SAD69 Enumerated_Domain_Value_Definition: South American Datum 1969 Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: WGS84 Enumerated_Domain_Value_Definition: World Geodetic System 1984 Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: lat_orig Attribute_Definition: Original latitude. Original latitude coordinate of sample site as supplied by the sample submitter, reported in decimal degrees. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -49.81222222 Range_Domain_Maximum: 74.90833333 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: long_orig Attribute_Definition: Original longitude. Original longitude coordinate of sample site as supplied by the sample submitter, reported in decimal degrees. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -179.36667 Range_Domain_Maximum: 179.9425 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: coord_prec_est Attribute_Definition: Precision of coordinate location. Estimated precision of coordinates that were originally supplied by the sample submitter, reported to the nearest second, minute, degree, foot, or meter. Textual values of no more than 32 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Explanatory text, not abbreviated Attribute: Attribute_Label: depth Attribute_Definition: Depth. Depth from the surface at which the sample was collected; units are specified by the submitter. Textual values of no more than 80 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 318708 records have no value for depth. Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: locate_desc Attribute_Definition: Location description. Sample location description as supplied by the sample submitter. Textual values of no more than 256 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 302469 records have no value for locate_desc. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Explanatory text, not abbreviated Attribute: Attribute_Label: sample_source Attribute_Definition: Sample source. Sample source, parent material, or indication of the land cover. Textual values of no more than 40 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 42509 records have no value for sample_source. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Short descriptive terms for the environment, not abbreviated, in some cases expressed as a set of closely related terms separated by slash to mean "or". Attribute: Attribute_Label: method_collected Attribute_Definition: Method of collection. Method used to collect the sample. Textual values of no more than 20 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 72265 records have no value for method_collected. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: channel Enumerated_Domain_Value_Definition: material taken from a trench or linear excavation Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: composite Enumerated_Domain_Value_Definition: material combined from several discrete takings Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: other Enumerated_Domain_Value_Definition: collection method not one of those described by this field Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: single/grab Enumerated_Domain_Value_Definition: material from a single act of taking at a single location Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: sngl/cmpst/chnl Enumerated_Domain_Value_Definition: collection may have been single, composite, or channel Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: unknown Enumerated_Domain_Value_Definition: collection method not known Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: primary_class Attribute_Definition: Sample medium. Sample media primary classification. All values in the sediment dataset equal SEDIMENT. Textual values of no more than 32 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: sediment Enumerated_Domain_Value_Definition: unconsolidated earth materials, typically deposited by streams or other bodies of water Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: specific_name Attribute_Definition: Specific name. Specific name or description of material that was submitted. Textual values of no more than 40 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 316600 records have no value for specific_name. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Text indicating material, not abbreviated Attribute: Attribute_Label: addl_attr Attribute_Definition: Notes on sample. Comment field that includes submitter supplied comments and text for additional attributes that are no longer maintained separately. Textual values of no more than 256 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 59308 records have no value for addl_attr. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Text may contain identifiers, description, place names, or feature types Attribute: Attribute_Label: geologic_age Attribute_Definition: Geologic age. Geologic age of the sample (or possibly the parent material) as supplied by the submitter. Textual values of no more than 64 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 300722 records have no value for geologic_age. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Geologic periods, sometimes specified as a range of periods using hyphen Attribute: Attribute_Label: stratigraphy Attribute_Definition: Stratigraphy. Stratigraphic formation name as supplied by the submitter. Textual values of no more than 256 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 324030 records have no value for stratigraphy. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Formation names (sometimes abbreviated) or stream names Attribute: Attribute_Label: mineralization Attribute_Definition: Mineralization. Indication of or type of mineralization associated with the sample. Textual values of no more than 40 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 333655 records have no value for mineralization. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Short descriptive text indicating general form or process of mineral concentration, not abbreviated Attribute: Attribute_Label: prep Attribute_Definition: Preparation. Description of sample preparation procedures used prior to analyzing the sample. Textual values of no more than 256 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 327215 records have no value for prep. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Descriptive text, may include program name such as NAWQA to indicate adherence to program preparation protocols Attribute: Attribute_Label: mesh_size Attribute_Definition: Sieve mesh size. Mesh size used or final size fraction that was analyzed. Textual values of no more than 64 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 210824 records have no value for mesh_size. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Descriptive text, may include procedural details such as "dry sieved" Attribute: Attribute_Label: collection_protocol Attribute_Definition: Collection protocol. Standard or published protocol used for collecting and preparing the sample. Textual values of no more than 64 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 334871 records have no value for collection_protocol. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NAWQA sediment collection protocol Enumerated_Domain_Value_Definition: Collection procedures followed guidelines of the National Water Quality Assessment program Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: previous_job_id Attribute_Definition: Previous job ID. Previous laboratory batch identifier, used when a sample was resubmitted in a new batch for further analyses. Textual values of no more than 20 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 333343 records have no value for previous_job_id. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Alphanumeric identifier without further scientific significance Attribute: Attribute_Label: previous_lab_id Attribute_Definition: Previous lab ID. Previous laboratory-assigned Unique identifier, used when a sample was resubmitted for further analyses and given an new Lab ID. Textual values of no more than 20 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: (no value) Enumerated_Domain_Value_Definition: Information not available for this record. 331049 records have no value for previous_lab_id. Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Alphanumeric identifier without further scientific significance Detailed_Description: Entity_Type: Entity_Type_Label: chemistry Entity_Type_Definition: All chemical analyses recorded for the sample, with analytical method, measured values, and qualifiers to indicate where a measured value was outside the reliable determination limits of the method Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: rec_id Attribute_Definition: This field contains the unique sequence number by which the given analysis can be related to the corresponding record in the master database from which these records were drawn. Consequently this value would be used to identify records that required correction in the master database, if necessary. Integer values. Integer of width 8. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 45225 Range_Domain_Maximum: 54405511 Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: lab_id Attribute_Definition: 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 10 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Alphanumeric identifiers without intrinsic scientific significance Attribute: Attribute_Label: species Attribute_Definition: Chemical species. Element, oxide, compound, or property that was determined or measured by the laboratory. Textual values of no more than 40 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Li Enumerated_Domain_Value_Definition: Lithium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Be Enumerated_Domain_Value_Definition: Beryllium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: B Enumerated_Domain_Value_Definition: Boron Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: C_tot Enumerated_Domain_Value_Definition: Carbon (total) Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: C_org Enumerated_Domain_Value_Definition: Carbon (organic) Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: C_crb Enumerated_Domain_Value_Definition: Carbon (carbonate) Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CO2 Enumerated_Domain_Value_Definition: Carbon dioxide Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: N Enumerated_Domain_Value_Definition: Nitrogen Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: F Enumerated_Domain_Value_Definition: Fluorine Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Na Enumerated_Domain_Value_Definition: Sodium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Mg Enumerated_Domain_Value_Definition: Magnesium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Al Enumerated_Domain_Value_Definition: Aluminum Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Si Enumerated_Domain_Value_Definition: Silicon Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: P Enumerated_Domain_Value_Definition: Phosphorus Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: S Enumerated_Domain_Value_Definition: Sulfur Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cl Enumerated_Domain_Value_Definition: Chlorine Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: K Enumerated_Domain_Value_Definition: Potassium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ca Enumerated_Domain_Value_Definition: Calcium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sc Enumerated_Domain_Value_Definition: Scandium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ti Enumerated_Domain_Value_Definition: Titanium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: V Enumerated_Domain_Value_Definition: Vanadium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cr Enumerated_Domain_Value_Definition: Chromium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Mn Enumerated_Domain_Value_Definition: Manganese Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Fe Enumerated_Domain_Value_Definition: Iron Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Co Enumerated_Domain_Value_Definition: Cobalt Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ni Enumerated_Domain_Value_Definition: Nickel Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cu Enumerated_Domain_Value_Definition: Copper Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Zn Enumerated_Domain_Value_Definition: Zinc Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ga Enumerated_Domain_Value_Definition: Gallium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ge Enumerated_Domain_Value_Definition: Germanium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: As Enumerated_Domain_Value_Definition: Arsenic Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Se Enumerated_Domain_Value_Definition: Selenium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Br Enumerated_Domain_Value_Definition: Bromine Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Rb Enumerated_Domain_Value_Definition: Rubidium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sr Enumerated_Domain_Value_Definition: Strontium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Y Enumerated_Domain_Value_Definition: Yttrium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Zr Enumerated_Domain_Value_Definition: Zirconium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Nb Enumerated_Domain_Value_Definition: Niobium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Mo Enumerated_Domain_Value_Definition: Molybdenum Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ru Enumerated_Domain_Value_Definition: Ruthenium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Rh Enumerated_Domain_Value_Definition: Rhodium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Pd Enumerated_Domain_Value_Definition: Palladium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ag Enumerated_Domain_Value_Definition: Silver Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cd Enumerated_Domain_Value_Definition: Cadmium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: In Enumerated_Domain_Value_Definition: Indium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sn Enumerated_Domain_Value_Definition: Tin Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sb Enumerated_Domain_Value_Definition: Antimony Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Te Enumerated_Domain_Value_Definition: Tellurium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: I Enumerated_Domain_Value_Definition: Iodine Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Cs Enumerated_Domain_Value_Definition: Cesium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ba Enumerated_Domain_Value_Definition: Barium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: La Enumerated_Domain_Value_Definition: Lanthanum Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ce Enumerated_Domain_Value_Definition: Cerium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Pr Enumerated_Domain_Value_Definition: Praseodymium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Nd Enumerated_Domain_Value_Definition: Neodymium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Sm Enumerated_Domain_Value_Definition: Samarium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Eu Enumerated_Domain_Value_Definition: Europium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Gd Enumerated_Domain_Value_Definition: Gadolinium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tb Enumerated_Domain_Value_Definition: Terbium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Dy Enumerated_Domain_Value_Definition: Dysprosium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ho Enumerated_Domain_Value_Definition: Holmium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Er Enumerated_Domain_Value_Definition: Erbium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tm Enumerated_Domain_Value_Definition: Thulium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Yb Enumerated_Domain_Value_Definition: Ytterbium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Lu Enumerated_Domain_Value_Definition: Lutetium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Hf Enumerated_Domain_Value_Definition: Hafnium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ta Enumerated_Domain_Value_Definition: Tantalum Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: W Enumerated_Domain_Value_Definition: Tungsten Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Re Enumerated_Domain_Value_Definition: Rhenium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Os Enumerated_Domain_Value_Definition: Osmium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Ir Enumerated_Domain_Value_Definition: Iridium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Pt Enumerated_Domain_Value_Definition: Platinum Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Au Enumerated_Domain_Value_Definition: Gold Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Hg Enumerated_Domain_Value_Definition: Mercury Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Tl Enumerated_Domain_Value_Definition: Thallium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Pb Enumerated_Domain_Value_Definition: Lead Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Bi Enumerated_Domain_Value_Definition: Bismuth Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Po Enumerated_Domain_Value_Definition: Polonium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Th Enumerated_Domain_Value_Definition: Thorium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: U Enumerated_Domain_Value_Definition: Uranium Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SplWtAu Enumerated_Domain_Value_Definition: Weight of sample used for gold analysis Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SplWtFA Enumerated_Domain_Value_Definition: Weight of sample used for fire assay analysis Enumerated_Domain_Value_Definition_Source: this data release Attribute: Attribute_Label: unit Attribute_Definition: Units of measure. Unit of measurement associated with the accompanying concentration value. Textual values of no more than 32 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: g Enumerated_Domain_Value_Definition: grams Enumerated_Domain_Value_Definition_Source: this report Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: pct Enumerated_Domain_Value_Definition: percent by weight Enumerated_Domain_Value_Definition_Source: this report Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ppm Enumerated_Domain_Value_Definition: parts per million by weight Enumerated_Domain_Value_Definition_Source: this report Attribute: Attribute_Label: qvalue Attribute_Definition: Measured value. Qualified concentration value for the associated Species and reported in the associated Unit. Values less than the lower limit of determination are negative while values greater than the upper limit of determination have a .1111 suffix. Real numbers stored in double precision. Attribute_Definition_Source: this data release Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -200000 Range_Domain_Maximum: 584300 Attribute: Attribute_Label: qualifier Attribute_Definition: Qualifier of measurement. Qualifier (L, N, G, <, or >) for censored data. Only used in the All Chemistry tables. Textual values of no more than 1 characters. 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Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CM_ST_P Enumerated_Domain_Value_Definition: Tungsten by colorimetry after partial digestion with carbonate sinter. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CP Enumerated_Domain_Value_Definition: Organic carbon, carbonate carbon and totals by computation. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: DN Enumerated_Domain_Value_Definition: Uranium and thorium by delayed neutron activation counting. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: EDX Enumerated_Domain_Value_Definition: Minor elements by energy-dispersive X-ray fluorescence spectrometry. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ES_Q Enumerated_Domain_Value_Definition: Major and minor elements by quantitative emission spectrography. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ES_SQ Enumerated_Domain_Value_Definition: Major and minor elements by semi-quantitative emission spectrography. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: FA_AA Enumerated_Domain_Value_Definition: Gold, silver and platinum group elements by graphite furnace atomic absorption spectrometry after PbO fire assay chemical separation. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: FA_DC Enumerated_Domain_Value_Definition: Gold by direct current plasma-atomic emission spectroscopy or atomic absorption spectrophotometry after PbO fire assay chemical separation. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: FA_ES Enumerated_Domain_Value_Definition: Gold and platinum group elements by direct-current arc quantitative emission spectrography after PbO fire assay chemical separation. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: FA_MS Enumerated_Domain_Value_Definition: Platinum group elements by inductively coupled plasma-mass spectrometry after NiS fire assay chemical separation. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: FL_Acid_P Enumerated_Domain_Value_Definition: Selenium by acid digestion and fluorometry; HNO3 digestion, H2O2 added, HClO4 digestion, HCl reduced, reacted with 2,3-diaminonapthalene. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: FL_HF Enumerated_Domain_Value_Definition: Beryllium, tin and uranium by fluorometry after multi-acid digestion with HF. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: FL_HNO3 Enumerated_Domain_Value_Definition: Selenium by fluorometry after digestion with HNO3-H3PO4. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: GV Enumerated_Domain_Value_Definition: Density, moisture and weight by gravimetry; ash or loss on ignition by weight loss after heating at 900 degrees C. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: GV_WO Enumerated_Domain_Value_Definition: Organic carbon, as CO2, by wet oxidation and gravimetry; H2SO4 digestion, oxidized with CrO3-H2SO4, CO2 collected on ascarite; data from "Energy Group SP Open File UGR-068". Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ISE_Fuse Enumerated_Domain_Value_Definition: Chloride, fluoride and iodide by ion specific electrode after fusion digestion. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ISE_HF Enumerated_Domain_Value_Definition: Chloride by ion specific electrode after multi-acid digestion with HF. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MS_AR_P Enumerated_Domain_Value_Definition: Major and minor elements by inductively coupled plasma-mass spectrometry after partial digestion with aqua regia. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MS_HF Enumerated_Domain_Value_Definition: Major and minor elements by inductively coupled plasma-mass spectrometry after HF-HCl-HNO3-HClO4 digestion. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MS_ST Enumerated_Domain_Value_Definition: Major and minor elements by inductively coupled plasma-mass spectrometry after Na2O2 sinter digestion. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MS_ST_REE Enumerated_Domain_Value_Definition: Rare earth elements by inductively coupled plasma-mass spectrometry after Na2O2 sinter digestion. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NA_LC Enumerated_Domain_Value_Definition: Major and trace elements by long count instrumental neutron activation analysis; no digestion/extraction necessary. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NA_SC Enumerated_Domain_Value_Definition: Major and trace elements by short (abbreviated) count instrumental neutron activation analysis; no digestion/extraction necessary. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: TC_Jrm Enumerated_Domain_Value_Definition: Mercury by thermal conductivity using gold film/thin film/UV detectors of Jerome instrument; no information regarding digestion/extraction. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: TT_Fuse Enumerated_Domain_Value_Definition: Iron trioxide by titration after fusion, decomposition and precipitation. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: TT_HCl Enumerated_Domain_Value_Definition: Carbonate carbon and carbon dioxide (acid soluble carbon) by coulometric titration after HClO4 digestion and extraction. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: VOL Enumerated_Domain_Value_Definition: Carbon dioxide or carbonate carbon by evolution after acid decomposition; aka ""gasometric"" or ""manometric"". 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Attribute_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Chem_ES Enumerated_Domain_Value_Definition: Chemical analyses by emission spectroscopy Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Chem_ICPAES Enumerated_Domain_Value_Definition: Chemical analyses by inductively-coupled plasma atomic emission spectroscopy Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Chem_ICPMS Enumerated_Domain_Value_Definition: Chemical analyses by inductively-coupled plasma mass spectroscopy Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Chem_NAA Enumerated_Domain_Value_Definition: Chemical analyses by neutron activation analysis Enumerated_Domain_Value_Definition_Source: this data release Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Chem_Other Enumerated_Domain_Value_Definition: Chemical analyses of "totally" digested samples by methods other than those identified by other values of this field. 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Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CM_Fuse_P Enumerated_Domain_Value_Definition: Molybdenum and antimony by colorimetry after partial digestion by K2S2O7 fusion (Mo) or NaHSO4 fusion-HCl digestion (Sb, rhodamine B). Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CM_HF Enumerated_Domain_Value_Definition: Major and minor elements by colorimetric spectrophotometry after multi-acid digestion with HF. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CM_HNO3_P Enumerated_Domain_Value_Definition: Copper, lead and zinc by colorimetry after partial digestion with HNO3. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CM_HSF Enumerated_Domain_Value_Definition: Fluorine by chemical separation and colorimetric spectrophotometry; chemical separation to fluorosilicic acid (H2SiF6), converted to silicomolybdate, reduced to Mo blue. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CM_PC_P Enumerated_Domain_Value_Definition: Uranium by paper chromatography after partial digestion with HNO3. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CM_SDDC Enumerated_Domain_Value_Definition: Arsenic by colorimetric spectrophotometry after digestion in HF-aqua regia and chemical separation with SDDC. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CM_ST Enumerated_Domain_Value_Definition: Chloride by colorimetric spectrophotometry after Na2CO3 and ZnO sinter digestion. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CM_ST_P Enumerated_Domain_Value_Definition: Tungsten by colorimetry after partial digestion with carbonate sinter. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: CP Enumerated_Domain_Value_Definition: Organic carbon, carbonate carbon and totals by computation. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: DN Enumerated_Domain_Value_Definition: Uranium and thorium by delayed neutron activation counting. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: EDX Enumerated_Domain_Value_Definition: Minor elements by energy-dispersive X-ray fluorescence spectrometry. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ES_Q Enumerated_Domain_Value_Definition: Major and minor elements by quantitative emission spectrography. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ES_SQ Enumerated_Domain_Value_Definition: Major and minor elements by semi-quantitative emission spectrography. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: FA_AA Enumerated_Domain_Value_Definition: Gold, silver and platinum group elements by graphite furnace atomic absorption spectrometry after PbO fire assay chemical separation. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: FA_DC Enumerated_Domain_Value_Definition: Gold by direct current plasma-atomic emission spectroscopy or atomic absorption spectrophotometry after PbO fire assay chemical separation. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: FA_ES Enumerated_Domain_Value_Definition: Gold and platinum group elements by direct-current arc quantitative emission spectrography after PbO fire assay chemical separation. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: FA_MS Enumerated_Domain_Value_Definition: Platinum group elements by inductively coupled plasma-mass spectrometry after NiS fire assay chemical separation. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: FL_Acid_P Enumerated_Domain_Value_Definition: Selenium by acid digestion and fluorometry; HNO3 digestion, H2O2 added, HClO4 digestion, HCl reduced, reacted with 2,3-diaminonapthalene. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: FL_HF Enumerated_Domain_Value_Definition: Beryllium, tin and uranium by fluorometry after multi-acid digestion with HF. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: FL_HNO3 Enumerated_Domain_Value_Definition: Selenium by fluorometry after digestion with HNO3-H3PO4. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: GV Enumerated_Domain_Value_Definition: Density, moisture and weight by gravimetry; ash or loss on ignition by weight loss after heating at 900 degrees C. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: GV_WO Enumerated_Domain_Value_Definition: Organic carbon, as CO2, by wet oxidation and gravimetry; H2SO4 digestion, oxidized with CrO3-H2SO4, CO2 collected on ascarite; data from "Energy Group SP Open File UGR-068". Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ISE_Fuse Enumerated_Domain_Value_Definition: Chloride, fluoride and iodide by ion specific electrode after fusion digestion. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: ISE_HF Enumerated_Domain_Value_Definition: Chloride by ion specific electrode after multi-acid digestion with HF. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MS_AR_P Enumerated_Domain_Value_Definition: Major and minor elements by inductively coupled plasma-mass spectrometry after partial digestion with aqua regia. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MS_HF Enumerated_Domain_Value_Definition: Major and minor elements by inductively coupled plasma-mass spectrometry after HF-HCl-HNO3-HClO4 digestion. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MS_ST Enumerated_Domain_Value_Definition: Major and minor elements by inductively coupled plasma-mass spectrometry after Na2O2 sinter digestion. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: MS_ST_REE Enumerated_Domain_Value_Definition: Rare earth elements by inductively coupled plasma-mass spectrometry after Na2O2 sinter digestion. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NA_LC Enumerated_Domain_Value_Definition: Major and trace elements by long count instrumental neutron activation analysis; no digestion/extraction necessary. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NA_SC Enumerated_Domain_Value_Definition: Major and trace elements by short (abbreviated) count instrumental neutron activation analysis; no digestion/extraction necessary. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: TC_Jrm Enumerated_Domain_Value_Definition: Mercury by thermal conductivity using gold film/thin film/UV detectors of Jerome instrument; no information regarding digestion/extraction. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: TT_Fuse Enumerated_Domain_Value_Definition: Iron trioxide by titration after fusion, decomposition and precipitation. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: TT_HCl Enumerated_Domain_Value_Definition: Carbonate carbon and carbon dioxide (acid soluble carbon) by coulometric titration after HClO4 digestion and extraction. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: VOL Enumerated_Domain_Value_Definition: Carbon dioxide or carbonate carbon by evolution after acid decomposition; aka ""gasometric"" or ""manometric"". Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: WDX_Fuse Enumerated_Domain_Value_Definition: Major and minor elements by wavelength-dispersive X-ray fluorescence spectrometry after LiBO2 fusion digestion. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: WDX_Raw Enumerated_Domain_Value_Definition: Chlorine, iodine and bromine by wavelength-dispersive X-ray fluorescence spectrometry on raw sample. Enumerated_Domain_Value_Definition_Source: https://mrdata.usgs.gov/agdb/method.php Attribute: Attribute_Label: summary Attribute_Definition: Related analyses. Summary of all analyses for the total concentration of a single element in a samples; analyses are listed in order of 'Best Value'. Used only in the bestvalue table. Textual values of no more than 256 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: List of the values of concentration and analytical method drawn from fields of the chemistry table where lab_id and chemical species matches the row. Attribute: Attribute_Label: parameter Attribute_Definition: Parameter. The suggested field name for a Species_Unit column in crosstabbed chemistry tables. These field names concatenate the Species and Unit fields. Textual values of no more than 32 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Concatenation of chemical species and unit fields, separated by underscore Attribute: Attribute_Label: mthd_parameter Attribute_Definition: Method parameter. The suggested field name for an AMethod column in crosstabbed chemistry tables. Textual values of no more than 32 characters. Attribute_Definition_Source: this data release Attribute_Domain_Values: Unrepresentable_Domain: Concatenation of chemical species field value and "_Mthd" Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Peter N Schweitzer Contact_Organization: USGS Geology, Energy, and Minerals Science Center Contact_Position: Geologist Contact_Address: Address_Type: mailing address Address: 12201 Sunrise Valley Drive City: Reston State_or_Province: VA Postal_Code: 20192-0002 Country: USA Contact_Voice_Telephone: 703-648-6533 Contact_Facsimile_Telephone: 703-648-6252 Contact_Electronic_Mail_Address: pschweitzer@usgs.gov Distribution_Liability: This database has been approved for release by the U.S. Geological Survey (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, the database is released on condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from its authorized or unauthorized use. 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