Zircon Trace Element Data for Igneous Units Related to Mineralization in the Eastern Yukon-Tanana Upland and nearby areas, Eastern Alaska

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Kreiner, Douglas C. (ORCID: 0000-0002-4405-1403)
Originator: Vazquez, Jorge (ORCID: 0000-0003-2754-0456)
Publication_Date: 20220517
Title:
Zircon Trace Element Data for Igneous Units Related to Mineralization in the Eastern Yukon-Tanana Upland and nearby areas, Eastern Alaska
Geospatial_Data_Presentation_Form: tabular digital data
Publication_Information:
Publication_Place: Anchorage, Alaska
Publisher: U.S. Geological Survey, Alaska Science Center
Other_Citation_Details:
Suggested Citation: Kreiner, D.C. and Vasquez, J., 2022, Zircon trace element data for igneous units related to mineralization in the eastern Yukon-Tanana upland and nearby areas, eastern Alaska: U.S. Geological Survey data release, https://doi.org/10.5066/P9Q6GYMH
Online_Linkage: https://doi.org/10.5066/P9Q6GYMH
Larger_Work_Citation:
Citation_Information:
Originator: U.S. Geological Survey, Alaska Science Center
Publication_Date: 2015
Title:
Tectonic and Metallogenic Evolution of the Eastern Yukon-Tanana Upland, Alaska
Geospatial_Data_Presentation_Form: website
Series_Information:
Series_Name: Alaska Science Portal
Issue_Identification: 389
Publication_Information:
Publication_Place: Anchorage, Alaska
Publisher: U.S. Geological Survey, Alaska Science Center
Other_Citation_Details:
This is a link to the broader USGS Alaska Science Center research project supported by these data. Users will find a description of the research project and links to associated reports, publications, and data products.
Online_Linkage: https://alaska.usgs.gov/portal/project.php?project_id=389
Description:
Abstract:
From 2017-2019, framework metallogenic studies were completed in the eastern Yukon-Tanana upland in eastern Alaska. Numerous previously undated plutons known or suspected to contain components of porphyry, epithermal, and intrusion-related gold systems and associated deposit types were sampled for age and zircon trace element determinations between the Black Mountain area and the Yukon border, north of the Tanana River and south of the Yukon River. A collection of 54 samples were collected by Douglas Kreiner (USGS, Alaska Science Center). Zircon grains were separated from each sample. The samples were examined by U-Pb analysis by laser ablation-inductively coupled plasma mass spectrometry (LA-ICP-MS) in a USGS laboratory in Denver, CO. These geochronologic data are reported in a separate USGS data release. The zircon samples were later analyzed for trace element characteristics by Douglas Kreiner using the Sensitive High Resolution Ion Microprobe with Reverse-Geometry (SHRIMP-RG) at the Stanford-USGS laboratory in Palo Alto, California. The samples represent several discrete periods of magmatic activity, ranging from 56.5-360.3 Ma. The Paleozoic ages are of host rocks that were previously unidentified and collected for regional framework geology. The bulk of analyzed samples are between 68-72 Ma. Other specific periods of mineralization range from 100-112 Ma and 180-211 Ma.
Purpose:
The data were collected in support of deciphering the regional metallogenic framework of eastern interior Alaska. Specifically, the data were targeted towards presumed Mesozoic plutons with known or suspected magmatic-hydrothermal (e.g. porphyry, intrusion-related gold, or epithermal) styles of mineralization. This dataset was aimed at understanding the temporal and spatial evolution of mineralization across the region, and to better link mineralizing events to regional tectonic and magmatic evolution by exploring the evolution of magmatic conditions recorded in the zircon trace element signatures.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2022
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -144.2
East_Bounding_Coordinate: -141.3
North_Bounding_Coordinate: 65.0
South_Bounding_Coordinate: 62.7
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:ASC465
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme:
Theme_Keyword_Thesaurus: NASA GCMD Earth Science Keyword Thesaurus
Theme_Keyword: solid earth
Theme_Keyword: geochemistry
Theme_Keyword: trace elements
Theme_Keyword: igneous rocks
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: isotopic analysis
Place:
Place_Keyword_Thesaurus: USGS Geographic Names Information System (GNIS)
Place_Keyword: Alaska
Place_Keyword: Eagle
Place_Keyword: Tanacross
Place_Keyword: Black Mountain
Access_Constraints: None
Use_Constraints:
It is requested that the authors and the USGS Alaska Science Center be cited for any subsequent publications that reference this dataset.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Address:
Address_Type: Mailing and Physical
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: USA
Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov
Cross_Reference:
Citation_Information:
Originator: Kreiner, D.C.
Originator: Holm-Denoma, C.
Originator: Pianowski, L.
Originator: Flood, Z.
Originator: Stephens, D.
Originator: Graham, G.E.
Originator: Vasquez, J.
Originator: Creaser, R.A.
Publication_Date: 2023
Title:
Geochronology and Mapping Constraints on the Time-Space Evolution of the Igneous and Hydrothermal Systems in the Taurus Cu-Mo District, Eastern Alaska
Geospatial_Data_Presentation_Form: journal article
Series_Information:
Series_Name: Economic Geology
Issue_Identification: 118(4): 745–778
Publication_Information:
Publication_Place: online
Publisher: GeoScienceWorld
Other_Citation_Details:
Kreiner, D.C, Holm-Denoma, C., Pianowski, L., Flood, Z., Stephens, D., Graham, G.E., Vazquez, J., Creaser, R.A., 2023. Geochronology and mapping constraints on the time-space evolution of the igneous and hydrothermal systems in the Taurus Cu-Mo district, eastern Alaska. Economic Geology 118(4): 745–778 doi:10.5382/econgeo.4999
Online_Linkage: https://doi.org/10.5382/econgeo.4999
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
As detailed in the supplemental information file, SHRIMP-RG zircon trace element Supplemental_Info.pdf, the Ca, Na, Al, P, and K concentrations were used to screen for analyses that encountered non-zircon inclusions capable of influencing the data. The log of the above concentration data for each sample population was plotted versus Hf concentrations because Hf behaves compatibly in zircon. Outliers were flagged and excluded from the maximum, minimum, and median calculations for each sample in the sample summary table (geology_SHRIMPRG_SampleSummary_YTUpland_AK_Kreiner). Additionally, the chondrite-normalized REE pattern was evaluated for all analyses to determine any outliers resulting from non-zircon inclusions. A zircon standard reference material (MAD-1) was also analyzed for comparison to known concentrations for all elements analyzed.
Logical_Consistency_Report:
All data are included in the data table, however column 'Excluded_median' in the data table indicates whether an analytical point was excluded from the calculation of the median value in the sample summary table. Spots with 'Excluded_median' identifiers in the data table are listed, but are also not included within the minimum or maximum analysis for any excluded spot value. Blank data values indicate a value was not calculated or determined.
The geochronological data provided in this data release are reported in Holm-Denoma and others (2022) and contain trailing zeros. If the CSV files are opened directly in Microsoft Excel, data values may be truncated.
Completeness_Report:
Samples for this data set were collected from an area of the Yukon-Tanana Uplands area, with samples limited to the boundaries of the eastern sections of the Big Delta and Mount Hayes 1:250,000-scale quadrangles, the north and northeastern sections of the Gulkana and Nabesna 1:250,000-scale quadrangles, and the entirety of the Eagle and Tanacross 1:250,000-scale quadrangles, Alaska.
This data set does not include any measurements collected for the element boron for one specified mount (labeled configuration CHD094) due to instrument failure during that mount session.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Most coordinates were determined by handheld global positioning systems (GPS) in decimal degrees and are accurate to about 0.0001 degrees or about 20 feet. GPS data were collected in datum WGS84 (1984 World Geographic System datum), and for samples that were analyzed from previous sampling collections, conversion from datum NAD83 to datum WGS84 was provided using National Coordinate and Transformation Tool (NCAT) software (https://geodesy.noaa.gov/NCAT).
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Holm-Denoma, C.
Originator: Pianowski, L.
Originator: Kreiner, D.C.
Publication_Date: 2022
Title:
U-Pb zircon data for igneous units related to mineralization in the eastern Yukon-Tanana upland, eastern Alaska
Geospatial_Data_Presentation_Form: tabular digital data
Series_Information:
Series_Name: U.S. Geological Survey data release
Issue_Identification: 10.5066/P9RANVXY
Publication_Information:
Publication_Place: online
Publisher: U.S. Geological Survey, ScienceBase
Other_Citation_Details:
Holm-Denoma, C., Pianowski, L., and Kreiner, D.C., 2022, U-Pb zircon data for igneous units related to mineralization in the eastern Yukon-Tanana upland, eastern Alaska; U.S. Geological Survey data release, https://doi.org/10.5066/P9RANVXY
Online_Linkage: https://doi.org/10.5066/P9RANVXY
Type_of_Source_Media: online database
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2022
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Holm-Denoma and others, 2022
Source_Contribution:
U-Pb zircon crystallization ages for the same sample set presented in this data release. Zircons were analyzed using LA-ICP-MS at the Denver Federal Center by Chris Holm-Denoma.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Strong, T.R.
Originator: Driscoll, R.L.
Publication_Date: 2016
Title: A Process for Reducing Rocks and Concentrating Heavy Minerals
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: U.S. Geological Survey Open-File Report
Issue_Identification: 2016-1022
Publication_Information:
Publication_Place: online
Publisher: U.S. Geological Survey
Other_Citation_Details:
Strong, T.R., and Driscoll, R.L., 2016, A process for reducing rocks and concentrating heavy minerals: U.S. Geological Survey Open-File Report 2016–1022, 16 p., https://doi.org/10.3133/ofr20161022
Online_Linkage: https://doi.org/10.3133/ofr20161022
Type_of_Source_Media: publication
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2016
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: Strong and Driscoll, 2016
Source_Contribution: Describes how zircon grains are extracted from rock samples.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Kreiner, D.C.
Publication_Date: 2022
Title:
Supplemental Info: Zircon trace element analytical methods using Stanford-USGS SHRIMP-RG
Geospatial_Data_Presentation_Form: document
Publication_Information:
Publication_Place: Anchorage, Alaska
Publisher: U.S. Geological Survey, Alaska Science Center
Other_Citation_Details:
Document included with this data package: SHRIMPRG_Zircon_trace_element_Supplemental_Info.pdf
Online_Linkage: https://doi.org/10.5066/P9Q6GYMH
Type_of_Source_Media: document
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2022
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: SHRIMP-RG Zircon trace element Supplemental Info.pdf
Source_Contribution:
Description of analytical methods and references for the analyses.
Process_Step:
Process_Description:
Zircon grains were separated from crushed and ground bulk rock samples using standard magnetic and heavy liquid techniques. Zircon grains were hand-picked under a binocular microscope and mounted in 2.54cm epoxy discs. The epoxy mounts were ground to expose grain interiors, polished, and imaged using cathodo luminescence (CL) for zircon on a scanning electronmicroscope (SEM) to identify internal structure (rims, core, etc.).
Source_Used_Citation_Abbreviation: Strong and Driscoll, 2016
Process_Date: 2020
Process_Step:
Process_Description:
LA-ICP-MS analyses were performed at the Geology, Geochemistry and Geophysiscs Science Center in Lakewood, CO prior to the trace element work. Methodology, analytical parameters, and U/Pb geochronology data are reported in a separate USGS data release (Holm-Denoma et al. 2022).
Process_Date: 2021
Process_Step:
Process_Description:
To ensure trace element (TE) analyses were targeting the correct zircon populations, careful spot selection was determined by matching the LA-ICP-MS laser pits to individual zircon grains in CL images. TE points were selected within the same internal zones (eg. core, rim, or growth zone) on the CL images of of each grain. Detailed description of the analytical process is provided in document "SHRIMPRG_Zircon_trace_element_Supplemental_Info.pdf" included with this data package.
Process_Date: 2021
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Point
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.0001
Longitude_Resolution: 0.0001
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: GCS_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.257223563
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: geology_SHRIMPRG_SampleSummary_YTUpland_AK_Kreiner.csv
Entity_Type_Definition:
Table presented as a Comma Separated Values (.csv) file with descriptive sample information, including location, rock description, methods and age calculations, and summary of trace element concentration data. The table consists of 54 indexed entries.
Entity_Type_Definition_Source: Author defined
Attribute:
Attribute_Label: Index
Attribute_Definition: Sorting value for this table.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 54
Attribute:
Attribute_Label: Sample
Attribute_Definition:
Sample number, as assigned when collected in the field; USGS identifier. Samples from drill core include an alphanumeric sequence that identify the year drilled, the initials of the prospect, and depth in meters.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain: Unique alpha-numeric character string assigned to each sample.
Attribute:
Attribute_Label: Latitude
Attribute_Definition: Latitude given in decimal degrees; datum WGS84.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 62.7882
Range_Domain_Maximum: 64.9636
Attribute_Units_of_Measure: Decimal degrees (WGS84)
Attribute_Measurement_Resolution: 0.0001
Attribute:
Attribute_Label: Longitude
Attribute_Definition: Longitude given in decimal degrees; datum WGS84.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -144.1097
Range_Domain_Maximum: -141.2567
Attribute_Units_of_Measure: Decimal degrees (WGS84)
Attribute_Measurement_Resolution: 0.0001
Attribute:
Attribute_Label: Rock_Class
Attribute_Definition: Basic rock classification of the sample.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Igneous
Enumerated_Domain_Value_Definition: Rock classification = Igneous
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Rock_Name
Attribute_Definition: Rock name based on petrographic observations.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain:
General rock description or nomenclature, as noted in collector's field or laboratory preparation notes.
Attribute:
Attribute_Label: Mount
Attribute_Definition: Internal laboratory ID number for the sample mount.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain:
All values are concatenation of three letters followed by three digits.
Attribute:
Attribute_Label: Date
Attribute_Definition: Month and year when analysis was conducted.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2019-04
Range_Domain_Maximum: 2020-10
Attribute_Units_of_Measure: Date (YYYY-MM)
Attribute:
Attribute_Label: Spots_total
Attribute_Definition: Total number of zircon measurements made per sample.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 10
Range_Domain_Maximum: 25
Attribute:
Attribute_Label: Age_Method
Attribute_Definition: Laboratory equipment and methodology used to determine age.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: LA-ICP-MS
Enumerated_Domain_Value_Definition:
Laser ablation inductively coupled plasma mass spectrometry techniques for U-Pb
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Age_Ma
Attribute_Definition:
Weighted mean of 207Pb-corrected 206Pb/238U age (Ma) determined for each sample from published sources detailed in supplemental information.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 54.95
Range_Domain_Maximum: 198.90
Attribute_Units_of_Measure: Ma (millions of years before present)
Attribute:
Attribute_Label: Age_2sigma
Attribute_Definition:
Uncertainty (2-sigma, or 95% confidence) of the weighted mean of 207Pb-corrected 206/238U age (Ma) from published sources detailed in supplemental information.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.42
Range_Domain_Maximum: 2.60
Attribute_Units_of_Measure: Ma (millions of years before present)
Attribute:
Attribute_Label: TE_Method
Attribute_Definition: Method used for determining trace element values.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: SHRIMP-RG
Enumerated_Domain_Value_Definition: Sensitive high resolution ion microprobe - reverse geometry
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Grains_analyzed
Attribute_Definition:
Number of grains contributing to the maximum, minimum, and median value calculations.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 5
Range_Domain_Maximum: 23
Attribute:
Attribute_Label: Li_max_ppm
Attribute_Definition:
Maximum lithium (Li) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.02
Range_Domain_Maximum: 19.47
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Li_min_ppm
Attribute_Definition:
Minimum lithium (Li) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 4.90
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Li_median_ppm
Attribute_Definition: Median lithium (Li) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 12.10
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: B_max_ppm
Attribute_Definition:
Maximum boron (B) value in the sample, in parts per million (ppm). All boron values from Mount CHD094 are represented by the entry 'n.c.' (not calculated). Either the beam was too weak, or the standard was too variable in boron; it resulted in bad standard analyses, and thus none of the boron measures are considered real data.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.05
Range_Domain_Maximum: 13.02
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: B_min_ppm
Attribute_Definition:
Minimum boron (B) value in the sample, in parts per million (ppm). All boron values from Mount CHD094 are represented by the entry 'n.c.' (not calculated). Either the beam was too weak, or the standard was too variable in boron; it resulted in bad standard analyses, and thus none of the boron measures are considered real data.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 0.48
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: B_median_ppm
Attribute_Definition:
Median boron (B) concentration, in parts per million (ppm). All boron values from Mount CHD094 are represented by the entry 'n.c.' (not calculated). Either the beam was too weak, or the standard was too variable in boron; it resulted in bad standard analyses, and thus none of the boron measures are considered real data.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.04
Range_Domain_Maximum: 0.71
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: F_max_ppm
Attribute_Definition:
Maximum fluorine (F) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4.98
Range_Domain_Maximum: 376.32
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: F_min_ppm
Attribute_Definition:
Minimum fluorine (F) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.12
Range_Domain_Maximum: 10.56
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: F_median_ppm
Attribute_Definition: Median fluorine (F) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.13
Range_Domain_Maximum: 27.70
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Na_max_ppm
Attribute_Definition:
Maximum sodium (Na) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2.07
Range_Domain_Maximum: 102.15
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Na_min_ppm
Attribute_Definition:
Minimum sodium (Na) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.13
Range_Domain_Maximum: 2.81
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Na_median_ppm
Attribute_Definition: Median sodium (Na) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.79
Range_Domain_Maximum: 10.17
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Al_max_ppm
Attribute_Definition:
Maximum aluminum (Al) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4.97
Range_Domain_Maximum: 644.16
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Al_min_ppm
Attribute_Definition:
Minimum aluminum (Al) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.07
Range_Domain_Maximum: 7.28
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Al_median_ppm
Attribute_Definition: Median aluminum (Al) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.68
Range_Domain_Maximum: 23.89
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: P_max_ppm
Attribute_Definition:
Maximum phosphorous (P) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 125.20
Range_Domain_Maximum: 2232.60
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: P_min_ppm
Attribute_Definition:
Minimum phosphorous (P) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 27.52
Range_Domain_Maximum: 335.30
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: P_median_ppm
Attribute_Definition:
Median phosphorous (P) concentration, in parts per million (ppm)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 84.84
Range_Domain_Maximum: 619.47
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: K_max_ppm
Attribute_Definition:
Maximum potassium (K) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.06
Range_Domain_Maximum: 205.98
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: K_min_ppm
Attribute_Definition:
Minimum potassium (K) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 0.38
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: K_median_ppm
Attribute_Definition: Median potassium (K) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 4.49
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ca_max_ppm
Attribute_Definition:
Maximum calcium (Ca) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3.09
Range_Domain_Maximum: 2345.95
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ca_min_ppm
Attribute_Definition:
Minimum calcium (Ca) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.26
Range_Domain_Maximum: 7.69
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ca_median_ppm
Attribute_Definition: Median calcium (Ca) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.85
Range_Domain_Maximum: 14.50
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Sc_max_ppm
Attribute_Definition:
Maximum scandium (Sc) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 25.85
Range_Domain_Maximum: 450.12
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Sc_min_ppm
Attribute_Definition:
Minimum scandium (Sc) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.49
Range_Domain_Maximum: 91.44
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Sc_median_ppm
Attribute_Definition: Median scandium (Sc) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 9.52
Range_Domain_Maximum: 153.70
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ti_max_ppm
Attribute_Definition:
Maximum isotope 49 titanium (Ti) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4.19
Range_Domain_Maximum: 652.83
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ti_min_ppm
Attribute_Definition:
Minimum isotope 49 titanium (Ti) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.88
Range_Domain_Maximum: 8.15
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ti_median_ppm
Attribute_Definition:
Median isotope 49 titanium (Ti) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.60
Range_Domain_Maximum: 14.37
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Fe_max_ppm
Attribute_Definition:
Maximum iron (Fe) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.62
Range_Domain_Maximum: 1832.28
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Fe_min_ppm
Attribute_Definition:
Minimum iron (Fe) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.28
Range_Domain_Maximum: 60.84
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Fe_median_ppm
Attribute_Definition: Median iron (Fe) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.79
Range_Domain_Maximum: 74.33
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Y_max_ppm
Attribute_Definition:
Maximum yttrium (Y) value in the sample, in parts per million (ppm)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 860.11
Range_Domain_Maximum: 7942.05
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Y_min_ppm
Attribute_Definition:
Minimum yttrium (Y) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 31.23
Range_Domain_Maximum: 1032.86
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Y_median_ppm
Attribute_Definition: Median yttrium (Y) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 168.39
Range_Domain_Maximum: 2473.74
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Nb_max_ppm
Attribute_Definition:
Maximum niobium (Nb) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 5.81
Range_Domain_Maximum: 90.45
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Nb_min_ppm
Attribute_Definition:
Minimum niobium (Nb) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.33
Range_Domain_Maximum: 6.12
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Nb_median_ppm
Attribute_Definition: Median niobium (Nb) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2.27
Range_Domain_Maximum: 35.24
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: La_max_ppm
Attribute_Definition:
Maximum lanthanum (La) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.03
Range_Domain_Maximum: 11.51
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: La_min_ppm
Attribute_Definition:
Minimum lanthanum (La) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 0.06
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: La_median_ppm
Attribute_Definition:
Median lanthanum (La) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 0.34
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ce_max_ppm
Attribute_Definition:
Maximum cerium (Ce) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4.78
Range_Domain_Maximum: 144.00
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ce_min_ppm
Attribute_Definition:
Minimum cerium (Ce) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.03
Range_Domain_Maximum: 47.20
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ce_median_ppm
Attribute_Definition: Median cerium (Ce) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.25
Range_Domain_Maximum: 74.72
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Pr_max_ppm
Attribute_Definition:
Maximum praseodymium (Pr) value in the sample, in parts per million (ppm). Blank values indicate a value was not calculated or determined for that sample.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.06
Range_Domain_Maximum: 4.58
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Pr_min_ppm
Attribute_Definition:
Minimum praseodymium (Pr) value in the sample, in parts per million (ppm). Blank values indicate a value was not calculated or determined for that sample.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.02
Range_Domain_Maximum: 0.23
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Pr_median_ppm
Attribute_Definition:
Median praseodymium (Pr) concentration, in parts per million (ppm). Cell is blank if both Pr_max_ppm and Pr_min_ppm have value 0.00 or was not determined.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.03
Range_Domain_Maximum: 0.53
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Nd_max_ppm
Attribute_Definition:
Maximum neodymium (Nd) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.52
Range_Domain_Maximum: 40.84
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Nd_min_ppm
Attribute_Definition:
Minimum neodymium (Nd) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.03
Range_Domain_Maximum: 2.86
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Nd_median_ppm
Attribute_Definition:
Median neodymium (Nd) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.12
Range_Domain_Maximum: 5.15
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Sm_max_ppm
Attribute_Definition:
Maximum samarium (Sm) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.89
Range_Domain_Maximum: 39.94
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Sm_min_ppm
Attribute_Definition:
Minimum samarium (Sm) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.04
Range_Domain_Maximum: 2.52
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Sm_median_ppm
Attribute_Definition: Median samarium (Sm) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.24
Range_Domain_Maximum: 5.66
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Eu_max_ppm
Attribute_Definition:
Maximum europium (Eu) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.50
Range_Domain_Maximum: 13.84
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Eu_min_ppm
Attribute_Definition:
Minimum europium (Eu) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 1.48
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Eu_median_ppm
Attribute_Definition: Median europium (Eu) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.18
Range_Domain_Maximum: 2.50
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Gd_max_ppm
Attribute_Definition:
Maximum gadolinium (Gd) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 9.01
Range_Domain_Maximum: 182.19
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Gd_min_ppm
Attribute_Definition:
Minimum gadolinium (Gd) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.23
Range_Domain_Maximum: 16.31
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Gd_median_ppm
Attribute_Definition:
Median gadolinium (Gd) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2.94
Range_Domain_Maximum: 30.00
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ho_max_ppm
Attribute_Definition:
Maximum holmium (Ho) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 24.69
Range_Domain_Maximum: 250.67
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ho_min_ppm
Attribute_Definition:
Minimum holmium (Ho) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.91
Range_Domain_Maximum: 32.38
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ho_median_ppm
Attribute_Definition: Median holmium (Ho) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4.54
Range_Domain_Maximum: 79.32
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Tb_max_ppm
Attribute_Definition:
Maximum terbium (Tb) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4.53
Range_Domain_Maximum: 58.70
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Tb_min_ppm
Attribute_Definition:
Minimum terbium (Tb) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.19
Range_Domain_Maximum: 6.84
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Tb_median_ppm
Attribute_Definition: Median terbium (Tb) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.25
Range_Domain_Maximum: 15.79
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Dy_max_ppm
Attribute_Definition:
Maximum dysprosium (Dy) value in the sample, in parts per million (ppm)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 53.34
Range_Domain_Maximum: 642.33
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Dy_min_ppm
Attribute_Definition:
Minimum dysprosium (Dy) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2.70
Range_Domain_Maximum: 73.19
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Dy_median_ppm
Attribute_Definition:
Median dysprosium (Dy) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 14.00
Range_Domain_Maximum: 190.74
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Er_max_ppm
Attribute_Definition:
Maximum erbium (Er) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 115.95
Range_Domain_Maximum: 1145.61
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Er_min_ppm
Attribute_Definition:
Minimum erbium (Er) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 3.49
Range_Domain_Maximum: 154.95
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Er_median_ppm
Attribute_Definition: Median erbium (Er) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 24.79
Range_Domain_Maximum: 373.49
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Tm_max_ppm
Attribute_Definition:
Maximum thulium (Tm) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 28.43
Range_Domain_Maximum: 254.44
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Tm_min_ppm
Attribute_Definition:
Minimum thulium (Tm) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.65
Range_Domain_Maximum: 36.17
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Tm_median_ppm
Attribute_Definition: Median thulium (Tm) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 6.67
Range_Domain_Maximum: 85.67
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Yb_max_ppm
Attribute_Definition:
Maximum ytterbium (Yb) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 260.41
Range_Domain_Maximum: 2615.10
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Yb_min_ppm
Attribute_Definition:
Minimum ytterbium (Yb) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 5.01
Range_Domain_Maximum: 332.66
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Yb_median_ppm
Attribute_Definition:
Median ytterbium (Yb) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 68.86
Range_Domain_Maximum: 799.16
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Lu_max_ppm
Attribute_Definition:
Maximum lutetium (Lu) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 47.74
Range_Domain_Maximum: 618.85
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Lu_min_ppm
Attribute_Definition:
Minimum lutetium (Lu) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.91
Range_Domain_Maximum: 81.25
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Lu_median_ppm
Attribute_Definition: Median lutetium (Lu) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 17.44
Range_Domain_Maximum: 183.65
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Hf_max_ppm
Attribute_Definition:
Maximum hafnium (Hf) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 10468.03
Range_Domain_Maximum: 18985.14
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Hf_min_ppm
Attribute_Definition:
Minimum hafnium (Hf) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 7120.55
Range_Domain_Maximum: 11852.92
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Hf_median_ppm
Attribute_Definition: Median hafnium (Hf) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 8888.06
Range_Domain_Maximum: 13971.83
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Pb_max_ppm
Attribute_Definition:
Maximum lead (Pb) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.52
Range_Domain_Maximum: 80.27
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Pb_min_ppm
Attribute_Definition:
Minimum lead (Pb) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.03
Range_Domain_Maximum: 5.14
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Pb_median_ppm
Attribute_Definition: Median lead (Pb) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.10
Range_Domain_Maximum: 11.06
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Th_max_ppm
Attribute_Definition:
Maximum thorium (Th) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 42.92
Range_Domain_Maximum: 3977.13
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Th_min_ppm
Attribute_Definition:
Minimum thorium (Th) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.63
Range_Domain_Maximum: 261.50
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Th_median_ppm
Attribute_Definition:
Median thorium (Th) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4.15
Range_Domain_Maximum: 657.35
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: U_max_ppm
Attribute_Definition:
Maximum uranium (U) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 378.09
Range_Domain_Maximum: 5956.60
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: U_min_ppm
Attribute_Definition:
Minimum uranium (U) value in the sample, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 46.96
Range_Domain_Maximum: 757.25
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: U_median_ppm
Attribute_Definition: Median uranium (U) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 98.48
Range_Domain_Maximum: 2072.43
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ta_max_ppm
Attribute_Definition:
Maximum tantalum (Ta) value in sample, in parts per million (ppm). Blank values indicate a value was not calculated or determined for that sample.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.23
Range_Domain_Maximum: 52.57
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ta_min_ppm
Attribute_Definition:
Minimum tantalum (Ta) value in sample, in parts per million (ppm). Blank values indicate a value was not calculated or determined for that sample.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.42
Range_Domain_Maximum: 2.27
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ta_median_ppm
Attribute_Definition:
Median tantalum (Ta) concentration, in parts per million (ppm). Cell is blank if both Ta_max_ppm and Ta_min_ppm have value 0.00 or is undetermined.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.93
Range_Domain_Maximum: 4.66
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: T_C_median
Attribute_Definition:
Ti-in-zircon thermometer (degrees C), after Ferry and Watson (2007), calculated using median Ti concentrations and assuming aSiO2 of 1.0 and aTiO2 of 0.7.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 624.03
Range_Domain_Maximum: 818.14
Attribute_Units_of_Measure: degrees C
Detailed_Description:
Entity_Type:
Entity_Type_Label: geology_SHRIMPRG_DataDictionary_YTUpland_AK_Kreiner.csv
Entity_Type_Definition:
This table is presented as a Comma Separated Values (.csv) file and contains 151 entries which outline the table names, field names, an explanation of each field, and units of measure, as applicable.
Entity_Type_Definition_Source: Author defined
Attribute:
Attribute_Label: TABLE
Attribute_Definition: Name of the data table that the 'FIELD_NAME' is found in.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain:
The only attributes for this dataset are 'geology_SHRIMPRG_Data_YTUpland_AK_Kreiner.csv' and 'geology_SHRIMPRG_SampleSummary_YTUpland_AK_Kreiner.csv'.
Attribute:
Attribute_Label: FIELD_NAME
Attribute_Definition: Field name found in data table listed in field 'TABLE'.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain:
Attributes in this field are single words or concatenated abbreviations that describe the contents of the field.
Attribute:
Attribute_Label: FIELD_EXPLANATION
Attribute_Definition: Brief description of the contents of 'FIELD_NAME'.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain:
Attributes in this field are brief descriptions of the contents of 'FIELD_NAME'.
Attribute:
Attribute_Label: UNITS
Attribute_Definition:
Specified units of measurement, as applicable to the parameter attributed.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: n/a
Enumerated_Domain_Value_Definition: not applicable
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: decimal degrees
Enumerated_Domain_Value_Definition: angular units of measure
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: degrees C
Enumerated_Domain_Value_Definition: degrees Celsius
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Ma
Enumerated_Domain_Value_Definition: Mega-annum, or millions of years before present.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: ppm
Enumerated_Domain_Value_Definition: parts per million
Enumerated_Domain_Value_Definition_Source: Author defined
Detailed_Description:
Entity_Type:
Entity_Type_Label: geology_SHRIMPRG_Data_YTUpland_AK_Kreiner.csv
Entity_Type_Definition:
Table presented as a Comma Separated Values (.csv) file with sample information and measured concentration values for trace element concentration data. The table consists of 1022 indexed entries.
Entity_Type_Definition_Source: Author defined
Attribute:
Attribute_Label: Index
Attribute_Definition: Numerical sorting value for data entries within the table.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 1022
Attribute:
Attribute_Label: Sample
Attribute_Definition:
Sample number assigned by collectors in the field; USGS identifier.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain:
Sample numbers are alphanumeric sequences that identify collector initials, year collected, and may include dashes and/or decimals, and additional numbers to indicate collection sequence that can be correlated to a specific location. Samples from drill core include an alphanumeric sequence that identify the year drilled, the initials of the prospect, and depth in meters.
Attribute:
Attribute_Label: Mount
Attribute_Definition: Internal laboratory ID designator number for sample mount.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain:
All numerical mount designations in this dataset contain the letters 'CHD', followed by a three digit number, indicating a specific and repeatable laboratory mount arrangement.
Attribute:
Attribute_Label: Date
Attribute_Definition: Month and year when the laboratory analysis was conducted.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2019-04
Range_Domain_Maximum: 2020-10
Attribute_Units_of_Measure: Date (YYYY-MM)
Attribute:
Attribute_Label: Timestamp
Attribute_Definition: Date and time of analysis for individual analysis spot.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2019-04-30, 19:20
Range_Domain_Maximum: 2020-10-30, 15:34
Attribute_Units_of_Measure: Date Time (YYYY-MM-DD, hh:mm)
Attribute:
Attribute_Label: Spot_ID
Attribute_Definition:
A unique internal ID number of individual analysis spot, generally the sample name followed by a number for each individual grain.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain:
Values in this dataset vary significantly, but tend to be a concatenation of field 'Sample', a hyphen, a number, and a decimal point followed by a number.
Attribute:
Attribute_Label: Excluded_median
Attribute_Definition:
Grains omitted from calculation of median trace element composition for zircon populations. These include all grains excluded due to suspected contamination by inclusions imparting non-zircon signal on integration of measured trace elements. "Yes" if excluded.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Blank cell
Enumerated_Domain_Value_Definition: Grains were not omitted from calculations.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Yes
Enumerated_Domain_Value_Definition:
Grains were omitted from calculations due to suspected contamination.
Enumerated_Domain_Value_Definition_Source: Author defined
Attribute:
Attribute_Label: Li_ppm
Attribute_Definition:
Lithium (Li) concentration, in parts per million (ppm). An entry of 'bdl' indicates the value measured was below detectable limits of the instrument.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 53.29
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: B_ppm
Attribute_Definition:
Boron (B) concentration, in parts per million (ppm). Entries of 'n.c.' (not calculated) are due to failure of Mount CHD094 to record boron measurements. An entry of 'bdl' indicates the value measured was below detectable limits of the instrument.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 38.48
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: F_ppm
Attribute_Definition:
Fluorine (F) concentration, in parts per million (ppm). An entry of 'bdl' indicates the value measured was below detectable limits of the instrument.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.12
Range_Domain_Maximum: 53445.13
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Na_ppm
Attribute_Definition: Sodium (Na) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.13
Range_Domain_Maximum: 15783.33
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Al_ppm
Attribute_Definition: Aluminum (Al) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.07
Range_Domain_Maximum: 24785.43
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: P_ppm
Attribute_Definition: Phosphorous (P) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 19.08
Range_Domain_Maximum: 70150.16
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: K_ppm
Attribute_Definition: Potassium (K) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 11540.34
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ca_ppm
Attribute_Definition: Calcium (Ca) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.26
Range_Domain_Maximum: 36140.06
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Sc_ppm
Attribute_Definition: Scandium (Sc) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.10
Range_Domain_Maximum: 1982.03
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ti_ppm
Attribute_Definition:
Titanium (Ti) concentration, in parts per million (ppm). An entry of 'bdl' indicates the value measured was below detectable limits of the instrument.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.10
Range_Domain_Maximum: 24250.33
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Fe_ppm
Attribute_Definition: Iron (Fe) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.28
Range_Domain_Maximum: 26674.26
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Y_ppm
Attribute_Definition: Yttrium (Y) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 31.23
Range_Domain_Maximum: 18485.54
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Nb_ppm
Attribute_Definition:
Niobium (Nb) concentration, in parts per million (ppm). An entry of 'bdl' indicates the value measured was below detectable limits of the instrument.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.32
Range_Domain_Maximum: 397.58
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: La_ppm
Attribute_Definition:
Lanthanum (La) concentration, in parts per million (ppm); n.c. for not calculated. An entry of 'bdl' indicates the value measured was below detectable limits of the instrument.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 7190.87
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ce_ppm
Attribute_Definition: Cerium (Ce) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.03
Range_Domain_Maximum: 17260.12
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Pr_ppm
Attribute_Definition:
Praseodymium (Pr) concentration, in parts per million (ppm). Blank cells are present where not analyzed or determined.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.02
Range_Domain_Maximum: 2773.92
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Nd_ppm
Attribute_Definition:
Neodymium (Nd) concentration, in parts per million (ppm). An entry of 'bdl' indicates the value measured was below detectable limits of the instrument.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.02
Range_Domain_Maximum: 15139.45
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Sm_ppm
Attribute_Definition: Samarium (Sm) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.04
Range_Domain_Maximum: 2005.96
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Eu_ppm
Attribute_Definition:
Europium (Eu) concentration, in parts per million (ppm). An entry of 'bdl' indicates the value measured was below detectable limits of the instrument.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 88.29
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Gd_ppm
Attribute_Definition:
Gadolinium (Gd) concentration, in parts per million (ppm). An entry of 'bdl' indicates the value measured was below detectable limits of the instrument.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.03
Range_Domain_Maximum: 2701.99
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ho_ppm
Attribute_Definition: Holmium (Ho) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.03
Range_Domain_Maximum: 320.90
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Tb_ppm
Attribute_Definition:
Terbium (Tb) concentration, in parts per million (ppm). An entry of 'bdl' indicates the value measured was below detectable limits of the instrument.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.01
Range_Domain_Maximum: 403.98
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Dy_ppm
Attribute_Definition: Dysprosium (Dy) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.22
Range_Domain_Maximum: 2004.93
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Er_ppm
Attribute_Definition: Erbium (Er) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.43
Range_Domain_Maximum: 1184.65
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Tm_ppm
Attribute_Definition: Thulium (Tm) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.08
Range_Domain_Maximum: 254.90
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Yb_ppm
Attribute_Definition: Ytterbium (Yb) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.83
Range_Domain_Maximum: 2615.10
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Lu_ppm
Attribute_Definition: Lutetium (Lu) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.49
Range_Domain_Maximum: 618.85
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Hf_ppm
Attribute_Definition: Hafnium (Hf) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 23.67
Range_Domain_Maximum: 24686.18
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Pb_ppm
Attribute_Definition:
Lead (Pb) concentration, in parts per million (ppm); n.c. for not calculated.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.03
Range_Domain_Maximum: 86.59
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Th_ppm
Attribute_Definition: Thorium (Th) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.63
Range_Domain_Maximum: 7568.89
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: U_ppm
Attribute_Definition: Uranium (U) concentration, in parts per million (ppm).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.25
Range_Domain_Maximum: 7623.99
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: Ta_ppm
Attribute_Definition:
Tantalum (Ta) concentration, in parts per million (ppm). Blank cells are present where not analyzed or determined.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.02
Range_Domain_Maximum: 166.96
Attribute_Units_of_Measure: parts per million (ppm)
Attribute:
Attribute_Label: T_C
Attribute_Definition:
Ti-in-zircon thermometer (degrees C), after Ferry and Watson (2007), assuming aSiO2 and aTiO2 of 0.7; n.c. for values not calculated due to low Ti concentration.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 460.87
Range_Domain_Maximum: 3824.73
Attribute_Units_of_Measure: degrees Celsius
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Address:
Address_Type: Mailing and Physical
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: USA
Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov
Resource_Description:
The U.S. Geological Survey, Alaska Science Center is the authoritative source and distributor of these data.
Distribution_Liability:
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data for other purposes or on all computer systems, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: CSV
Format_Information_Content:
Data are distributed in a Zip package containing data in CSV formats; a supplemental README file in PDF format; and FGDC metadata in XML and HTML formats.
File_Decompression_Technique:
Compression applied by the 7-Zip utility using the default compression level [5]. The Zip package can be decompressed and unpacked by open source or commercially available unzip tools.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: https://doi.org/10.5066/P9Q6GYMH
Fees: None
Metadata_Reference_Information:
Metadata_Date: 20231011
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Address:
Address_Type: Mailing and Physical
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: USA
Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata (CSDGM)
Metadata_Standard_Version: FGDC-STD-001-1998
Generated by mp version 2.9.52 on Thu Oct 12 00:08:01 2023