Stream-Sediment Samples Reanalyzed for Major, Rare Earth, and Trace Elements from Seven 1:250,000-Scale Quadrangles, South-Central Alaska, 200709

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Gamble, Bruce M.
Originator: Bailey, Elizabeth A.
Originator: Schmidt, Jeanine M.
Originator: Shew, Nora B.
Originator: Labay, Keith A.
Originator: Granitto, Matthew
Originator: O'Leary, Richard M.
Originator: Detra, David E.
Publication_Date: 2010
Title:
Stream-Sediment Samples Reanalyzed for Major, Rare Earth, and Trace Elements from Seven 1:250,000-Scale Quadrangles, South-Central Alaska, 2007–09
 
Geospatial_Data_Presentation_Form: tabular data
Series_Information:
Series_Name: U.S. Geological Survey Data Series
Issue_Identification: 532
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: <https://pubs.usgs.gov/ds/532/>
Description:
Abstract:
During the 1960s through the 1980s, the U.S. Geological Survey conducted reconnaissance geochemical surveys of drainage basins throughout most of the Iliamna, Lake Clark, Lime Hills, and Talkeetna 1:250,000-scale quadrangles and parts of the McGrath, Seldovia, and Tyonek 1:250,000-scale quadrangles in Alaska. These geochemical surveys provide data necessary to assess the potential for undiscovered mineral resources and provide data that may be used to determine regional-scale element baselines. This report provides new data for 1,075 of the previously collected stream-sediment samples. The new analyses include a broader spectrum of elements and provide data that are more precise than the original analyses. All samples were analyzed for arsenic by hydride generation atomic absorption spectrometry, for gold, palladium, and platinum by inductively coupled plasma-mass spectrometry after lead button fire assay separation, and for a suite of 55 major, rare earth, and trace elements by inductively coupled plasma-atomic emission spectrometry and inductively coupled plasma-mass spectrometry after sodium peroxide sinter at 450 degrees Celsius.
Purpose:
In preparation for future mineral resource assessments, a percentage of these samples (about 6 percent) were selected for reanalysis because recently developed analytical methods can detect additional elements of interest, such as platinum (Pt), palladium (Pd), and rare earth elements (REE), and elements that have lower detection limits than the methods used when the samples were originally analyzed.

Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2007
Ending_Date: 2009
Currentness_Reference: years in which samples were analyzed
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -156.000
East_Bounding_Coordinate: -150.000
North_Bounding_Coordinate: 63.000

South_Bounding_Coordinate: 59.400
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: environment
Theme_Keyword: sediments
Theme_Keyword: geochemistry
Theme_Keyword: mineral resources
Theme_Keyword: geochemical data

Theme_Keyword: mineral exploration
Theme_Keyword: exploration geochemistry
Theme_Keyword: sediment chemistry
Theme_Keyword: environmental geochemistry
Theme_Keyword: mineral resource assessment
Theme_Keyword: major elements
Theme_Keyword: trace elements
Theme_Keyword: rare earth elements

Place:
Place_Keyword_Thesaurus: ISO 19115 Topic Category
Place_Keyword: location
Place_Keyword: United States of America
Place_Keyword: Alaska
Place_Keyword: West-Central Alaska
Place_Keyword: Iliamna
Place_Keyword: Lake Clark
Place_Keyword: Lime Hills
Place_Keyword: McGrath
Place_Keyword: Seldovia
Place_Keyword: Talkeetna
Place_Keyword: Tyonek
Access_Constraints: None
Use_Constraints: None
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Gamble, Bruce M.
Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Position: Research Geologist
Contact_Address:
Address_Type: Mailing address
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508-4626
Country: United States of America
Contact_Voice_Telephone: 1-907-786-7479
Contact_Facsimile_Telephone: 1-907-786-7401
Contact_Electronic_Mail_Address: bgamble@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: <https://pubs.usgs.gov/ds/532/pdf/ds532_plate01.pdf>
Browse_Graphic_File_Description:
Map showing location of 1,075 stream-sediment samples reanalyzed by the USGS in the Iliamna, Lake Clark, Lime Hills, McGrath, Seldovia, Talkeetna, and Tyonek 1:250,000-scale quadrangles, Alaska.
Browse_Graphic_File_Type: PDF (Portable Document Format)
Data_Set_Credit:
Matthew Granitto: USGS, Denver, CO, USGS National Geochemical Database (NGDB) organization and maintenance; Steven M. Smith: USGS, Denver, CO, USGS NGDB project leader; David E. Detra: USGS Denver, CO, Analytical chemistry methods information, analytical data quality assurance and control, contract chemistry manager; Richard M. O'Leary: USGS Denver, CO, Analytical chemistry methods information, analytical data quality assurance and control, sample preparation oversight; Peter Hauessler: technical reviewer; Tim Brabets: technical reviewer; Theresa Taylor: metadata reviewer
Cross_Reference:
Citation_Information:
Originator: Bailey, Elizabeth A.
Originator: Shew, Nora B.
Originator: Labay, Keith A.
Originator: Schmidt, Jeanine M.
Originator: O'Leary, Richard M.
Originator: Detra, David E.
Publication_Date: 2010
Title:
Stream-Sediment Samples Reanalyzed for Major, Rare Earth, and Trace Elements from Ten 1:250,000-Scale Quadrangles, South-Central Alaska, 2007–08
Geospatial_Data_Presentation_Form: tabular data and map showing sample localities
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 2010-1147
Online_Linkage: <https://pubs.usgs.gov/of/2010/1147/>

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The analytical methods used to generate the data in this report were selected by the authors. The accuracy of the data varies with the analytical methodology and with the concentration of the element being analyzed. Please see USGS Open-File Report 02-0223 (<https://pubs.usgs.gov/of/2002/ofr-02-0223/>) and the USGS Mineral Resources Program Contract Laboratory Method Summaries web site (<http://minerals.cr.usgs.gov/projects/analytical_chem/references.html>) for specific details on the sample preparation and analytical methods used for this report.
Logical_Consistency_Report:
All of the location coordinate and analytical data fields have been formatted as numeric fields. Maximum and minimum values were calculated to insure that valid results were reported for each analytical value; that is all values are greater than zero (0) and not less than the element lower reporting limit for each analytical method. Latitude/Longitude coordinates were checked to insure they plotted in the correct 1:250,000-scale quadrangle.
Completeness_Report:
Samples to be reanalyzed were randomly selected from 10 x 10 km (6.2 x 6.2 mi) grid cells that we overlaid on the study area to ensure a relatively even sample distribution. When available, two samples were selected from each cell. Archived material sufficient for re-analysis was not available for all samples initially selected. When possible, new selections were made in an attempt to continue to have two samples from each cell.
The selected samples were reanalyzed to determine if the original analyses are adequate for regional-scale mineral resource assessment, if the original data are adequate to determine regional-scale baselines for elements of interest, and to incorporate additional analyses such as platinum and palladium and rare earth elements (REE). Original analyses, many of which are by semiquantitative methods, may be found in the Rock Analysis and Storage System (RASS) component of the National Geochemical Database (NGDB), but are not included in this dataset.

The geographic extent of this area includes the Iliamna, Lake Clark, Lime Hills, McGrath, Seldovia, Talkeetna, and Tyonek 1:250,000-scale quadrangles in Alaska. All of the 1,075 samples retrieved from the Building 810 archive at the Denver Federal Center for this report were reanalyzed for As by hydride generation atomic absorption spectrometry (HGAAS), and for a suite of 55 major, rare earth, and trace elements by inductively coupled plasma-atomic emission spectrometry and inductively coupled plasma-mass spectrometry (ICP-AES-MS). Most of these samples were also reanalyzed for Au, Pd, and Pt by inductively coupled plasma-mass spectrometry after fire assay separation (FA/ICP_MS) however several samples did not contain enough material (30 g.) to be analyzed. These samples are noted in the data table with "ins" in the fields (columns) for Au, Pd, and Pt.

All sample analyses were completed in 2007-2009 at a laboratory under contract to the USGS. Contract laboratory oversight, data entry into the USGS National Geochemical Database, and analytical data QA/QC are managed by David E. Detra, David L. Fey, and Richard M. O'Leary at the USGS in Denver, CO.

This report consists of 4 files. The first PDF file (ds532.pdf) contains introductory and explanatory text and a table with the upper and lower reporting limits for each element analyzed by the various analytical methods used for this data set.
The second file is a PDF (ds532_plate01.pdf) image showing the location of the 1,075 stream-sediment samples reanalyzed for this report.
The other two files contain the sample identification, location, and analytical data for each sample reported. This data is available in five formats: spreadsheet (ds532_appendix_a.xls, ds532_appendix_a.xlsx, ds532_appendix_a.ods), database (ds532_appendix_a.dbf), and ASCII (ds532_appendix_a.csv). The location coordinate and analytical data fields were formatted as numeric fields in MS Excel to preserve the formatting when converted to the database format.

Abreviations used in the data tables (ds532_appendix_a.xls, ds532_appendix_a.csv, ds532_appendix_a.xlsx, ds532_appendix_a.ods):
HGAAS: hydride genration atomic absorption spectrometry
FA/ICP_MS: fire assay with inductively coupled plasma-mass spectrometry finish
ICPAES_MS: inductively coupled plasma-atomic emission spectrometry or inductively coupled plasma-mass spectrometry
ppm: parts per million
ppb: parts per billion
%: percent
<: less than the indicated lower limit of detection for the element as determined by the analytical method used
ins: insufficient sample for analysis
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitude and longitude values are specified in decimal degrees. The original sample location data were recorded in a variety of formats (decimal degrees, degrees plus decimal minutes, degrees-minutes-seconds). Most of the coordinates were originally determined in the field using clear mylar graticules overlaid on a paper 1:63,360-scale topographic base maps in degrees, minutes, and seconds or in the office using a tablet digitizer. When submitters reported locations as degrees, minutes, and seconds of latitude and longitude the accuracy should be within a few seconds or about 200 feet.
The horizontal datum used is North American Datum of 1927. The ellipsoid used is Clarke 1866.
Lineage:
Process_Step:
Process_Description:
1. One thousand seventy five stream-sediment samples that were previously collected in west-central Alaska by several USGS scientists were retrieved from the USGS sample storage archive in Building 810 at the Denver Federal Center and chemically analyzed. All samples were analyzed for As by hydride generation atomic absorption spectrometry (HGAAS), for Au, Pd, and Pt by inductively coupled plasma-mass spectrometry after fire assay separation (FA/ICP_MS), and for a suite of 55 major, rare earth, and trace elements by inductively coupled plasma-atomic emission spectrometry and inductively coupled plasma-mass spectrometry (ICP-AES-MS).

2. Location and analytical data were compiled in spreadsheet form (table2.xls). Columns (fields) containing numeric data such as latitude, longitude, and analytical data were formatted as numeric fields and saved.
Process_Date: 20100506

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: 0.001 degrees

Longitude_Resolution: 0.001 degrees

Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927 (NAD27)
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:
ds532_appendix_a.xls, ds532_appendix_a.xlsx, ds532_appendix_a.ods, ds532_appendix_a.csv
Entity_Type_Definition:
This table contains analytical data for 1,075 stream-sediment samples. The fields (columns) consist of sample identification, location, and analytical information for each sample.
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Map No.
Attribute_Definition:
Unique identification number assigned by the authors to make reading the location figure easier. These numbers correspond to the sample location labels shown on plate01.pdf.
Attribute_Definition_Source: U.S. Geological Survey, Nora B. Shew, Anchorage, AK - coauthor
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 1,075
Attribute:
Attribute_Label: New Lab No.
Attribute_Definition:
Each sample submitted for analyses is assigned a unique ID number by the USGS that is integrated with the USGS laboratory information storage system (LIMS) prior to submitting to a laboratory.
Attribute_Definition_Source: U.S. Geological Survey, Richard M. O'Leary, Denver, CO
Attribute_Domain_Values:
Unrepresentable_Domain:
Alphanumeric data without scientific significance. Each value is assigned by the USGS/LIMS at the time of submittal and is unique.
Attribute:
Attribute_Label: Field_No.
Attribute_Definition: Field number assigned by the submitter.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
Alphanumeric data without scientific significance. Each value assigned by the submitter is unique.
Attribute:
Attribute_Label: Previous Job No.
Attribute_Definition:
Assigned by the USGS. Samples are submitted by the USGS to a laboratory in jobs (groups) of samples. Each group of samples submitted for analyses is assigned a unique job number.

Attribute_Definition_Source: U.S. Geological Survey, Richard M. O'Leary, Denver, CO
Attribute_Domain_Values:
Unrepresentable_Domain:
Alphanumeric data without scientific significance. Each value assigned by the USGS prior to submitting to a laboratory is unique to the group of samples submitted together. These values were assigned when the samples were originally submitted for preparation and analyses. The scheme used for Job No. has varied with time; some values are numeric and some values are combinations of letters and numbers.
Attribute:
Attribute_Label: Latitude
Attribute_Definition:
North latitude of sample site reported in decimal degrees. (NAD27, Clarke 1866)
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 59.415
Range_Domain_Maximum: 62.998
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: Longitude
Attribute_Definition:
West longitude of sample site reported in negative decimal degrees. (NAD27, Clarke 1866)
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -155.979
Range_Domain_Maximum: -150.011
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: 1:250,000-scale quadrangle
Attribute_Definition:
Name of the 1:250,000-scale quadrangle in which the sample was collected.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Text field.
Attribute:
Attribute_Label: HGAAS As_ppm
Attribute_Definition:
Concentration of arsenic in stream-sediment samples; determined by hydride generation atomic absorption spectrometry (HGAAS)
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#M9>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.6
Enumerated_Domain_Value_Definition: below the lower limit of detection (0.6 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.6
Range_Domain_Maximum: 2,520
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
The optimum concentration range without sample dilution for As in various solid phase sample media is 0.6 ppm to 20 ppm. Data will be deemed acceptable if recovery of As is plus or minus 20% at five times the limit of detection (LOD) and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 20%.
Attribute:
Attribute_Label: FA/ICP_MS Au_ppb
Attribute_Definition:
Concentration of gold in stream-sediment samples; determined by fire assay with inductively coupled plasma_mass spectrometry finish (FA/ICP-MS)
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m20>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <1
Enumerated_Domain_Value_Definition: below the lower limit of detection (1 ppb)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 5,990
Attribute_Units_of_Measure: ppb (parts per billion)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data will be deemed acceptable if recovery of gold is plus or minus 20 percent (%) at five times the limit of detection (LOD) and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 20%. Sample weight is 30 g. (grams)
Attribute:
Attribute_Label: FA/ICP_MS Pd_ppb
Attribute_Definition:
Concentration of palladium in stream-sediment samples; determined by fire assay with inductively coupled plasma_mass spectrometry finish (FA/ICP-MS)
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m20>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <1
Enumerated_Domain_Value_Definition: below the lower limit of detection (1 ppb)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 15
Attribute_Units_of_Measure: ppb (parts per billion)

Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data will be deemed acceptable if recovery of palladium is plus or minus 20 percent (%) at five times the limit of detection (LOD) and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 20%. Sample weight is 30 g. (grams)
Attribute:
Attribute_Label: FA/ICP_MS Pt_ppb
Attribute_Definition:
Concentration of platinum in stream-sediment samples; determined by fire assay with inductively coupled plasma_mass spectrometry finish (FA/ICP-MS)
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m20>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.5
Enumerated_Domain_Value_Definition: below the lower limit of detection (1 ppb)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.5
Range_Domain_Maximum: 28.3
Attribute_Units_of_Measure: ppb (parts per billion)

Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data will be deemed acceptable if recovery of platinum is plus or minus 20 percent (%) at five times the limit of detection (LOD) and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 20%. Sample weight is 30 g. (grams)
Attribute:
Attribute_Label: ICPAES_MS55 Al_%
Attribute_Definition:
Concentration of aluminum in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 12.1
Attribute_Units_of_Measure: % (percent)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for aluminum is ±15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Ca_%
Attribute_Definition:
Concentration of calcium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, Survey, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.01
Enumerated_Domain_Value_Definition: below the lower limit of detection (0.01%)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 29.6
Attribute_Units_of_Measure: % (percent)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for calcium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Fe_%
Attribute_Definition:
Concentration of iron in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.01
Enumerated_Domain_Value_Definition: below the lower limit of detection (0.01%)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 17.9
Attribute_Units_of_Measure: % (percent)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for iron is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 K_%
Attribute_Definition:
Concentration of potassium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.01
Enumerated_Domain_Value_Definition: below the lower limit of detection (0.01%)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 5.47
Attribute_Units_of_Measure: % (percent)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for potassium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Mg_%
Attribute_Definition:
Concentration of magnesium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.01
Enumerated_Domain_Value_Definition: below the lower limit of detection (0.01%)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 5.47
Attribute_Units_of_Measure: % (percent)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for magnesium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Mn_%
Attribute_Definition:
Concentration of manganese in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.01
Enumerated_Domain_Value_Definition: below the lower limit of detection (0.01%)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 0.66
Attribute_Units_of_Measure: % (percent)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for manganese is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 P_%
Attribute_Definition:
Concentration of phosphorus in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.01
Enumerated_Domain_Value_Definition: below the lower limit of detection (0.01%)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 0.48
Attribute_Units_of_Measure: % (percent)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for phosphorus is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Ti_%
Attribute_Definition:
Concentration of titanium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.03
Range_Domain_Maximum: 2.19
Attribute_Units_of_Measure: % (percent)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for titanium is ±15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Ag_ppm
Attribute_Definition:
Concentration of silver in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <1
Enumerated_Domain_Value_Definition: below the lower limit of detection (1 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 15
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for silver is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 As_ppm
Attribute_Definition:
Concentration of arsenic in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <30
Enumerated_Domain_Value_Definition: below the lower limit of detection (30 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 30
Range_Domain_Maximum: 2,510
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for arsenic is pus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Ba_ppm
Attribute_Definition:
Concentration of barium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2
Range_Domain_Maximum: 9,250
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for barium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Be_ppm
Attribute_Definition:
Concentration of beryllium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <5
Enumerated_Domain_Value_Definition: below the lower limit of detection (5 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 5
Range_Domain_Maximum: 9,250
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for berylium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Bi_ppm
Attribute_Definition:
Concentration of bismuth in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.1
Enumerated_Domain_Value_Definition: below the lower limit of detection (0.1 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.1
Range_Domain_Maximum: 9,250
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for bismuth is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Cd_ppm
Attribute_Definition:
Concentration of cadmium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.2
Enumerated_Domain_Value_Definition: below the lower limit of detection (0.2 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.2
Range_Domain_Maximum: 9,250
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for cadmium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Ce_ppm
Attribute_Definition:
Concentration of cerium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 8.4
Range_Domain_Maximum: 1,530
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for cerium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Co_ppm
Attribute_Definition:
Concentration of cobalt in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.5
Enumerated_Domain_Value_Definition: below the lower limit of detection (0.5 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.5
Range_Domain_Maximum: 72.5
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for cobalt is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Cr_ppm
Attribute_Definition:
Concentration of chromium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <10
Enumerated_Domain_Value_Definition: below the lower limit of detection (10 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 10
Range_Domain_Maximum: 1,120
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for chromium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Cs_ppm
Attribute_Definition:
Concentration of cesium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.1
Enumerated_Domain_Value_Definition: below the lower limit of detection (0.1 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.1
Range_Domain_Maximum: 39.7
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for cesium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Cu_ppm
Attribute_Definition:
Concentration of copper in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <5
Enumerated_Domain_Value_Definition: below the lower limit of detection (5 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 5
Range_Domain_Maximum: 3,050
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for copper is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Dy_ppm
Attribute_Definition:
Concentration of dysprosium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.22
Range_Domain_Maximum: 75.8
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for dysprosium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Er_ppm
Attribute_Definition:
Concentration of erbium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.67
Range_Domain_Maximum: 50.2
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for erbium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Eu_ppm
Attribute_Definition:
Concentration of europium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.19
Range_Domain_Maximum: 6.10
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for europium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Ga_ppm
Attribute_Definition:
Concentration of gallium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3
Range_Domain_Maximum: 31
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for galium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Gd_ppm
Attribute_Definition:
Concentration of gadollinium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.00
Range_Domain_Maximum: 61.7
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for gadolinium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Ge_ppm
Attribute_Definition:
Concentration of germanium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <1
Enumerated_Domain_Value_Definition: below the lower limit of detection (1 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 60
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for germanium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Hf_ppm
Attribute_Definition:
Concentration of hafnium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.2
Enumerated_Domain_Value_Definition: below the lower limit of detection (0.2 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 136
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for hafnium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Ho_ppm
Attribute_Definition:
Concentration of holmium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.23
Range_Domain_Maximum: 16.6
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for holmium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 In_ppm
Attribute_Definition:
Concentration of indium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.2
Enumerated_Domain_Value_Definition: below the lower limit of detection (0.2 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.2
Range_Domain_Maximum: 1.2
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for indium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 La_ppm
Attribute_Definition:
Concentration of lanthanum in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4.1
Range_Domain_Maximum: 762
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for lanthanum is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Li_ppm
Attribute_Definition:
Concentration of lithium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <10
Enumerated_Domain_Value_Definition: below the lower limit of detection (10 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 10
Range_Domain_Maximum: 180
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for lithium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Lu_ppm
Attribute_Definition:
Concentration of lutetium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.06
Range_Domain_Maximum: 6.94
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for lutetium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Mo_ppm
Attribute_Definition:
Concentration of molybdenum in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <2
Enumerated_Domain_Value_Definition: below the lower limit of detection (2 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2
Range_Domain_Maximum: 37
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for molybdenum is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Nb_ppm
Attribute_Definition:
Concentration of niobium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <1
Enumerated_Domain_Value_Definition: below the lower limit of detection (1 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 101
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for nioboim is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Nd_ppm
Attribute_Definition:
Concentration of neodymium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 5.4
Range_Domain_Maximum: 650
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for neodymium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Ni_ppm
Attribute_Definition:
Concentration of nickel in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <5
Enumerated_Domain_Value_Definition: below the lower limit of detection (5 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 5
Range_Domain_Maximum: 1,180
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for nickel is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Pb_ppm
Attribute_Definition:
Concentration of lead in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <5
Enumerated_Domain_Value_Definition: below the lower limit of detection (5 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 5
Range_Domain_Maximum: 683
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for lead is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Pr_ppm
Attribute_Definition:
Concentration of praeseodymium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.17
Range_Domain_Maximum: 179
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for praeseodymium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Rb_ppm
Attribute_Definition:
Concentration of rubidium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.9
Range_Domain_Maximum: 296
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for rubidium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Sb_ppm
Attribute_Definition:
Concentration of anitmony in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.1
Enumerated_Domain_Value_Definition: below the lower limit of detection (0.1 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.1
Range_Domain_Maximum: 97
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for antimony is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Sc_ppm
Attribute_Definition:
Concentration of scandium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <5
Enumerated_Domain_Value_Definition: below the lower limit of detection (5 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 5
Range_Domain_Maximum: 32
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for scandium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Sm_ppm
Attribute_Definition:
Concentration of samarium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.0
Range_Domain_Maximum: 92.4
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for samarium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Sn_ppm
Attribute_Definition:
Concentration of tin in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <1
Enumerated_Domain_Value_Definition: below the lower limit of detection (1 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 101
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for tin is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Sr_ppm
Attribute_Definition:
Concentration of strontium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.4
Range_Domain_Maximum: 1,860
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for strontium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Ta_ppm
Attribute_Definition:
Concentration of tantalum in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.5
Enumerated_Domain_Value_Definition: below the lower limit of detection (0.5 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.5
Range_Domain_Maximum: 7.2
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for tantalum is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Tb_ppm
Attribute_Definition:
Concentration of terbium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.19
Range_Domain_Maximum: 11.6
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for terbium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Th_ppm
Attribute_Definition:
Concentration of thorium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.4
Range_Domain_Maximum: 260
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for thorium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Tl_ppm
Attribute_Definition:
Concentration of thallium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <0.5
Enumerated_Domain_Value_Definition: below the lower limit of detection (0.5 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.5
Range_Domain_Maximum: 2.3
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for thallium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Tm_ppm
Attribute_Definition:
Concentration of thulium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.08
Range_Domain_Maximum: 7.59
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for thulium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 U_ppm
Attribute_Definition:
Concentration of uranium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.20
Range_Domain_Maximum: 286
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for uranium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 V_ppm
Attribute_Definition:
Concentration of vanadium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <5
Enumerated_Domain_Value_Definition: below the lower limit of detection (5 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 5
Range_Domain_Maximum: 627
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for vanadium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 W_ppm
Attribute_Definition:
Concentration of tungsten in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: <1
Enumerated_Domain_Value_Definition: below the lower limit of detection (1 ppm)
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 162
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for tungsten is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Y_ppm
Attribute_Definition:
Concentration of yttrium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 6.9
Range_Domain_Maximum: 453
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for yttrium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Yb_ppm
Attribute_Definition:
Concentration of ytterbium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.6
Range_Domain_Maximum: 47.7
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for ytterbium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Zn_ppm
Attribute_Definition:
Concentration of zinc in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 11
Range_Domain_Maximum: 2,330
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for zinc is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Attribute:
Attribute_Label: ICPAES_MS55 Zr_ppm
Attribute_Definition:
Concentration of zirconium in stream-sediment samples; determined by inductively coupled plasma atomic emission spectrometry or mass spectrometry (ICP-AES-MS) following sodium peroxide sinter at 450 degrees Celsius
Attribute_Definition_Source:
U.S. Geological Survey, Central Mineral and Environmental Resources Science Center (CMERSC) Analytical Chemistry, David E. Detra, Denver, CO and <http://minerals.cr.usgs.gov/projects/analytical_chem/references.html#m22>
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ins
Enumerated_Domain_Value_Definition: insufficient sample material for analysis
Enumerated_Domain_Value_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 27
Range_Domain_Maximum: 4,750
Attribute_Units_of_Measure: ppm (parts per million)
Attribute_Value_Accuracy_Information:
Attribute_Value_Accuracy_Explanation:
Data is deemed acceptable if recovery for zirconium is plus or minus 15% at five times the lower limit of detection (LOD) for each element and the calculated percent relative standard deviation (RSD) of duplicate samples is no greater than 15%.
Overview_Description:
Entity_and_Attribute_Overview:
This report has one entity (table) with attributes that are defined in the "Entity_and_Attribute_Information Detailed_Description" section.
The table is as follows:
ds532_appendix_a: sample locations, descriptions, and geochemical data for 1,075 samples from 10 1:250,000-scale quadrangle in south-central Alaska
Entity_and_Attribute_Detail_Citation: This report

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USGS Information Services
Contact_Address:
Address_Type: Mailing address
Address: Box 25286, Denver Federal Center
City: Denver
State_or_Province: CO
Postal_Code: 80225-0046
Country: United States
Contact_Voice_Telephone: 1-888-ASK-USGS (1-888-275-8747) (voice)

Contact_Facsimile_Telephone: 1-303-202-4695 (FAX)
Contact_Electronic_Mail_Address: infoservices@usgs.gov
Resource_Description: USGS Data Series 532
Distribution_Liability:
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. Although this data has been processed successfully on computers at the USGS, no warranty, expressed or implied, is made by the USGS regarding the use of this data on any other system, nor does the fact of distribution constitute or imply any such warranty. In no event shall the USGS have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by the USGS
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: XLS, XLSX, ODS, DBF, and CSV
Format_Version_Number:
MS Excel 2003; MS Excel 2007; OpenDocument Spreadsheet (OpenOffice.org Calc); dBase IV; ASCII comma separated values
Format_Information_Content:
tabular data with sample identification, location information, and chemical analyses of stream-sediment samples
File_Decompression_Technique: unzip
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <https://pubs.usgs.gov/ds/532/data/ds532_metadata.zip>
Digital_Form:
Digital_Transfer_Information:
Format_Name: PDF
Format_Information_Content: report text and sample location plate
File_Decompression_Technique: unzip
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <https://pubs.usgs.gov/ds/532/data/ds532_metadata.zip>
Fees: none
Turnaround: Digital downloads: less than 30 minutes for most files
Technical_Prerequisites:
CSV (comma separated value) files can be imported and formatted with Microsoft Excel, OpenOffice.org Calc, or other spreadsheet and text editor programs; can also be imported into ArcGIS or other geographical information system (GIS) programs

Metadata_Reference_Information:
Metadata_Date: 20100625
Metadata_Review_Date: 20100615
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Bailey, Elizabeth A.
Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Position: Research Chemist
Contact_Address:
Address_Type: Mailing address
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508-4626
Country: United States
Contact_Voice_Telephone: 1-907-786-7442
Contact_Facsimile_Telephone: 1-907-786-7401
Contact_Electronic_Mail_Address: eabailey@usgs.gov
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

Generated by mp version 2.9.6 on Wed Jul 21 11:35:42 2010