Chemical analyses of soils and other surficial materials of the conterminous United States

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Boerngen, Josephine G.
Originator: Shacklette, Hansford T.
Publication_Date: 1981
Title:
Chemical analyses of soils and other surficial materials of the conterminous United States
Geospatial_Data_Presentation_Form: tabular data
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 81-197
Publication_Information:
Publication_Place: Denver, CO
Publisher: U.S. Geological Survey
Online_Linkage: https://mrdata.usgs.gov/ussoils/
Description:
Abstract:
This data set contains geochemical data from soils and other regoliths collected and analyzed by Hans Shacklette and colleagues beginning in 1958 and continuing until about 1976. Geochemical point-symbol maps were plotted from these data and published as U.S.G.S. Professional Paper 1270 entitled "Element Concentrations in Soils and Other Surficial Materials of the Conterminous United States". The samples were collected at a depth of about 20 cm from sites that, insofar as possible, had surficial materials that were very little altered from their natural condition and that supported native plants. The sample material at most sites could be termed "soil" because it was a mixture of disintegrated rock and organic matter. Some of the sampled deposits, however, were not soils as defined above, but were other regolith types. These included desert sands, sand dunes, some loess deposits, and beach and alluvial deposits that contained little or no visible organic material. The samples were chemically analyzed by a variety of techniques in the U.S. Geological Survey laboratories in Denver, CO.
Purpose:
These data provide an ultra-low-density geochemical baseline for soils and other surficial materials in the conterminous United States. The data set contains 1,323 samples for a sampling density of approximately 1 sample per 6,000 square kilometers. The data set is currently the only national geochemical data set collected and analyzed according to standardized protocols. The data are most appropriately used to provide information on background concentrations of elements in soil. The major drawback with the data set is its extremely low number of samples for the entire conterminous US.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1958
Ending_Date: 1976
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -125
East_Bounding_Coordinate: -67
North_Bounding_Coordinate: 49
South_Bounding_Coordinate: 25
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme:
Theme_Keyword_Thesaurus: General glossary for mineral resources spatial data
Theme_Keyword: columnar text
Theme_Keyword: DBF
Theme_Keyword: HTML table
Theme_Keyword: KML
Theme_Keyword: shapefile
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: aluminum
Theme_Keyword: antimony
Theme_Keyword: arsenic
Theme_Keyword: barium
Theme_Keyword: beryllium
Theme_Keyword: boron
Theme_Keyword: bromine
Theme_Keyword: calcium
Theme_Keyword: carbon
Theme_Keyword: cerium
Theme_Keyword: chemical analysis
Theme_Keyword: chromium
Theme_Keyword: cobalt
Theme_Keyword: copper
Theme_Keyword: fluorine
Theme_Keyword: gallium
Theme_Keyword: geospatial datasets
Theme_Keyword: germanium
Theme_Keyword: iodine
Theme_Keyword: iron
Theme_Keyword: lanthanum
Theme_Keyword: lead
Theme_Keyword: lithium
Theme_Keyword: magnesium
Theme_Keyword: manganese
Theme_Keyword: mercury
Theme_Keyword: molybdenum
Theme_Keyword: neodymium
Theme_Keyword: nickel
Theme_Keyword: niobium
Theme_Keyword: phosphorus
Theme_Keyword: potassium
Theme_Keyword: rubidium
Theme_Keyword: scandium
Theme_Keyword: selenium
Theme_Keyword: silicon
Theme_Keyword: sodium
Theme_Keyword: soil chemistry
Theme_Keyword: strontium
Theme_Keyword: sulfur
Theme_Keyword: thorium
Theme_Keyword: tin
Theme_Keyword: titanium
Theme_Keyword: unconsolidated deposits
Theme_Keyword: uranium
Theme_Keyword: vanadium
Theme_Keyword: ytterbium
Theme_Keyword: yttrium
Theme_Keyword: zinc
Theme_Keyword: zirconium
Place:
Place_Keyword_Thesaurus: Common geographic areas
Place_Keyword: fUS01 = Alabama
Place_Keyword: fUS05 = Arkansas
Place_Keyword: fUS06 = California
Place_Keyword: fUS08 = Colorado
Place_Keyword: fUS09 = Connecticut
Place_Keyword: fUS10 = Delaware
Place_Keyword: fUS12 = Florida
Place_Keyword: fUS13 = Georgia
Place_Keyword: fUS16 = Idaho
Place_Keyword: fUS17 = Illinois
Place_Keyword: fUS18 = Indiana
Place_Keyword: fUS19 = Iowa
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: fUS26 = Michigan
Place_Keyword: fUS27 = Minnesota
Place_Keyword: fUS28 = Mississippi
Place_Keyword: fUS29 = Missouri
Place_Keyword: fUS30 = Montana
Place_Keyword: fUS31 = Nebraska
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: fUS39 = Ohio
Place_Keyword: fUS40 = Oklahoma
Place_Keyword: fUS41 = Oregon
Place_Keyword: fUS42 = Pennsylvania
Place_Keyword: fUS44 = Rhode Island
Place_Keyword: fUS45 = South Carolina
Place_Keyword: fUS46 = South Dakota
Place_Keyword: fUS47 = Tennessee
Place_Keyword: fUS48 = Texas
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
Access_Constraints: None
Use_Constraints: None
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Smith, David B.
Contact_Organization: U.S. Geological Survey
Contact_Position: Research Geologist
Contact_Address:
Address_Type: Mailing address
Address:
U.S. Geological Survey
Box 25046, MS 973
City: Denver
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: United States of America
Contact_Voice_Telephone: 303-236-1849
Contact_Facsimile_Telephone: 303-236-3200
Contact_Electronic_Mail_Address: dsmith@usgs.gov
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The soil samples were chemically analyzed by a variety of techniques over a period of time from the mid-1960's to the late 1970's. Details of the methods are given in the references listed in USGS Open-File Report 81-197 and USGS Professional Paper 1270.

In summary, the methods used were:

1) Emission spectrography (Myers and others, 1961; Neiman, 1976) for Al, Ba, Be, B, Ca, Ce, Cr, Co, Cu, Ga, Fe, La, Pb, Mg, Mn, Mo, Nd, Ni, Nb, P, K, Sc, Na, Sr, Ti, V, Yb, Y, Zn, and Zr;

2) EDTA titration for Ca;

3) colorimetric methods for P and Zn (Ward and others, 1963);

4) flame photometry for K (Ward and others, 1963);

5) flame atomic absorption (Huffman and Dinnin, 1976) for Hg, Li, Mg, Na, Rb, and Zn;

6) flameless atomic absorption for Hg (Vaughn, 1967);

7) X-ray fluorescence spectrometry (Wahlberg, 1976) for Ca, Ge, Fe, K, Se, Ag, S, and Ti;

8) Combustion (Huffman and Dinnin, 1976) for total carbon; and neutron activation (Millard, 1975, 1976) for U and Th.

The accuracy varies with the analytical methodology and with the concentration of the element being analyzed. A small portion of the database contains qualified data. The types of qualifiers in this data set are:

"N", meaning that the element was not detected at concentrations above the detection limit-this is shown in the data set as, for example, 5.000N meaning that the element was not detected at a concentration of 5 concentration units (ppm or %), the detection limit of the technique.

"L", meaning that the element was detected by the technique, but at a level below the detection limit-this is shown in the data set as, for example, 1.000L meaning that the element was detected by the instrument, but at a level that could not be quantified at or above the detection limit, 1 concentration unit.

"B", meaning that there is no data for that particular element in a given sample-this is shown in the data set as .0000B.

"G", meaning that the element was measured at a concentration greater than the upper determination limit for the technique-this is shown in the data set as, for example, 10.0000G, meaning that the element was measured at a concentration greater than 10 concentration units.
Logical_Consistency_Report:
USGS Open-File Report 81-197 gives analytical values for 46 elements analyzed by a variety of methods. For some elements, the methods of chemical analysis were the same throughout the study, while for others, the methods changed as analytical technology improved. However, all the methods used were specifically designed to give the total contents of the element analyzed. Therefore, the results of earlier analysis should be comparable with results of more recent analyses.
Completeness_Report:
Where chemical data is lacking for a given element in a given sample, ".0000B" is shown as the concentration value. Virtually every element in the data set has some samples in which the element was not analyzed. This may have been a conscious decision on the part of the investigators or it may have been the result of insufficient sample to complete all the analytical procedures. This lack of data is most common for the elements Br, C, Ge, I, Rb, S, Sb, Si, Sn, Th, and U.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Sample locations were determined from USGS topographic maps of various scales. The sites are estimated to be accurate to the nearest minute of latitude and longitude.
Lineage:
Process_Step:
Process_Description:
The data were generated by the analytical laboratories of the USGS over several years, beginning in the early-mid 1960's when data were not stored in digital databases. In about 1980, upon completion of the sampling and analysis, the data were keypunched and stored in the PLUTO database. At about this same time, the data were put into .CIM format. In about 1996, a copy the data in .CIM was converted to .dbf format. In 1998, the data in .dbf format was converted to Microsoft ACCESS format (.mdb) and then to ARC-INFO format.
Process_Date: 1960 to 1999
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Point
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 1 minute
Longitude_Resolution: 1 minute
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.4
Denominator_of_Flattening_Ratio: 294.98
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Geochemical sample
Entity_Type_Definition:
Table rows consist of information about each sample and its chemical composition.
Attribute:
Attribute_Label: PRIME_ID
Attribute_Definition: Primary ID or field number
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: GCxxxxxx
Enumerated_Domain_Value_Definition: Field number
Enumerated_Domain_Value_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: GC000250
Range_Domain_Maximum: GC280550
Attribute:
Attribute_Label: SECND_ID
Attribute_Definition:
Secondary ID. Unique identification number assigned by the laboratory. This attribute is blank for this data set.
Attribute:
Attribute_Label: LAT_DMS
Attribute_Definition:
Latitude in degrees, minutes, seconds (blank for this data set).
Attribute_Domain_Values:
Range_Domain:
Attribute_Units_of_Measure: Degrees, minutes, seconds.
Attribute:
Attribute_Label: LON_DMS
Attribute_Definition:
Longitude in degrees, minutes, seconds (blank for this data set).
Attribute_Domain_Values:
Range_Domain:
Attribute_Units_of_Measure: Degrees, minutes, seconds.
Attribute:
Attribute_Label: State
Attribute_Definition: State in which sample was collected.
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: XX
Enumerated_Domain_Value_Definition: 2-letter state abbreviation
Enumerated_Domain_Value_Definition_Source: FIPS 5-2
Attribute:
Attribute_Label: County
Attribute_Definition: County in which sample was collected.
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute:
Attribute_Label: LAT
Attribute_Definition: Latitude of sample site in decimal degrees.
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 25.8333
Range_Domain_Maximum: 44.7000
Attribute_Units_of_Measure: Decimal degrees.
Attribute:
Attribute_Label: LONG
Attribute_Definition: Longitude of sample site in decimal degrees.
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 67.2833
Range_Domain_Maximum: 124.4000
Attribute_Units_of_Measure: Decimal degrees.
Attribute:
Attribute_Label: Date Collected
Attribute_Definition: Date the sample was collected.
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: MM/YY
Enumerated_Domain_Value_Definition: month (MM) and year (YY)
Enumerated_Domain_Value_Definition_Source: USGS Open-File Report 81-197
Attribute:
Attribute_Label: AL_
Attribute_Definition: Aluminum concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.07
Range_Domain_Maximum: >10
Attribute_Units_of_Measure: Per cent
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: AS_PPM
Attribute_Definition: Arsenic concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <0.10
Range_Domain_Maximum: 97
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: B_PPM
Attribute_Definition: Boron concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <20
Range_Domain_Maximum: 300
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: BA_PPM
Attribute_Definition: Barium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 10
Range_Domain_Maximum: 5,000
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: BE_PPM
Attribute_Definition: Beryllium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <1
Range_Domain_Maximum: 15
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: BR_PPM
Attribute_Definition: Bromine concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <0.50
Range_Domain_Maximum: 10.8
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: C_
Attribute_Definition: Total carbon concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.06
Range_Domain_Maximum: 37
Attribute_Units_of_Measure: Per cent
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: CA_
Attribute_Definition: Calcium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 32
Attribute_Units_of_Measure: Per cent
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: CE_PPM
Attribute_Definition: Cerium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <150
Range_Domain_Maximum: 300
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: CO_PPM
Attribute_Definition: Cobalt concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <3
Range_Domain_Maximum: 70
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: CR_PPM
Attribute_Definition: Chromium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 2,000
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: CU_PPM
Attribute_Definition: Copper concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <1
Range_Domain_Maximum: 700
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: F_
Attribute_Definition: Fluorine concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <0.001
Range_Domain_Maximum: 0.37
Attribute_Units_of_Measure: Per cent
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: FE_
Attribute_Definition: Iron concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: >10
Attribute_Units_of_Measure: Per cent
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: GA_PPM
Attribute_Definition: Gallium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <5
Range_Domain_Maximum: 70
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: GE_PPM
Attribute_Definition: Germanium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <0.1
Range_Domain_Maximum: 2,500
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: HG_PPM
Attribute_Definition: Mercury concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <0.01
Range_Domain_Maximum: 4.6
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: I_PPM
Attribute_Definition: Iodine concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <0.5
Range_Domain_Maximum: 9.6
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: K_
Attribute_Definition: Potassium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.005
Range_Domain_Maximum: 6.3
Attribute_Units_of_Measure: Per cent
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: LA_PPM
Attribute_Definition: Lanthanum concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <30
Range_Domain_Maximum: 200
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: LI_PPM
Attribute_Definition: Lithium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <5
Range_Domain_Maximum: 140
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: MG_
Attribute_Definition: Magnesium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.005
Range_Domain_Maximum: >10
Attribute_Units_of_Measure: Per cent
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: MN_PPM
Attribute_Definition: Manganese concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <2
Range_Domain_Maximum: 7,000
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: MO_PPM
Attribute_Definition: Molybdenum concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <3
Range_Domain_Maximum: 15
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: NA_
Attribute_Definition: Sodium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <0.05
Range_Domain_Maximum: 10
Attribute_Units_of_Measure: Per cent
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: NB_PPM
Attribute_Definition: Niobium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <10
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: ND_PPM
Attribute_Definition: Neodymium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <70
Range_Domain_Maximum: 300
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: NI_PPM
Attribute_Definition: Nickel concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <5
Range_Domain_Maximum: 700
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: P_
Attribute_Definition: Phosphorus concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <0.002
Range_Domain_Maximum: 0.68
Attribute_Units_of_Measure: Per cent
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: PB_PPM
Attribute_Definition: Lead concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <10
Range_Domain_Maximum: 700
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: RB_PPM
Attribute_Definition: Rubidium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <20
Range_Domain_Maximum: 210
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: S_
Attribute_Definition: Sulfur concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <0.08
Range_Domain_Maximum: 4.78
Attribute_Units_of_Measure: Per cent
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: SB_PPM
Attribute_Definition: Antimony concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <1
Range_Domain_Maximum: 8.8
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: SC_PPM
Attribute_Definition: Scandium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <5
Range_Domain_Maximum: 50
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: SE_PPM
Attribute_Definition: Selenium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <0.1
Range_Domain_Maximum: 4.3
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: SI_
Attribute_Definition: Silicon concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.69
Range_Domain_Maximum: 44.9
Attribute_Units_of_Measure: Per cent
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: SN_PPM
Attribute_Definition: Tin concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <0.1
Range_Domain_Maximum: 10.2
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: SR_PPM
Attribute_Definition: Strontium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <5
Range_Domain_Maximum: 3,000
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: TI_
Attribute_Definition: Titanium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.007
Range_Domain_Maximum: 2.0
Attribute_Units_of_Measure: Per cent
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: TH_PPM
Attribute_Definition: Thorium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2.15
Range_Domain_Maximum: 30.8
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: U_PPM
Attribute_Definition: Uranium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.29
Range_Domain_Maximum: 10.7
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: V_PPM
Attribute_Definition: Vanadium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <7
Range_Domain_Maximum: 500
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: Y_PPM
Attribute_Definition: Yttrium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <10
Range_Domain_Maximum: 200
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: YB_PPM
Attribute_Definition: Ytterbium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <1
Range_Domain_Maximum: 50
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: ZN_PPM
Attribute_Definition: Zinc concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <5
Range_Domain_Maximum: 2,900
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Attribute:
Attribute_Label: ZR_PPM
Attribute_Definition: Zirconium concentration
Attribute_Definition_Source: USGS Open-File Report 81-197
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: <20
Range_Domain_Maximum: 2,000
Attribute_Units_of_Measure: Parts per million (PPM)
Beginning_Date_of_Attribute_Values: 195810
Ending_Date_of_Attribute_Values: 197611
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Smith, David B.
Contact_Organization: U.S. Geological Survey
Contact_Position: Research Geologist
Contact_Address:
Address_Type: Mailing address
Address:
Box 25046, MS 973
Denver Federal Center
City: Denver
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: United States of America
Contact_Voice_Telephone: 303-236-1849
Contact_Facsimile_Telephone: 303-236-3200
Contact_Electronic_Mail_Address: dsmith@usgs.gov
Distribution_Liability:
The U.S. Geological Survey (USGS) provides these data "as is". The USGS makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. The USGS further 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.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: shapefile
Format_Version_Number: 1.0
Format_Information_Content: Geochemical sample locations and analytic results
File_Decompression_Technique: unzip
Transfer_Size: 0.125
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Fees: none
Metadata_Reference_Information:
Metadata_Date: 20161207
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Smith, David B.
Contact_Organization: U.S. Geological Survey
Contact_Position: Research Geologist
Contact_Address:
Address_Type: Mailing address
Address:
Box 25046, MS 973
Denver Federal Center
City: Denver
State_or_Province: Colorado
Postal_Code: 80225-0046
Country: United States of America
Contact_Voice_Telephone: 303-236-1849
Contact_Facsimile_Telephone: 303-236-3200
Contact_Electronic_Mail_Address: dsmith@usgs.gov
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

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