Charley River Cosmogenic Isotope Data Collected 2019-2021

Identification_Information:

Citation:

Citation_Information:

Originator: Bender, Adrian M. (ORCID: 0000-0001-7469-1957)
Publication_Date: 20220524
Title: Charley River Cosmogenic Isotope Data Collected 2019-2021
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: Bender, A.M, 2022, Charley River cosmogenic isotope data collected 2019-2021: U.S. Geological Survey data release, https://doi.org/10.5066/P9DRHQIS

Online_Linkage: https://doi.org/10.5066/P9DRHQIS
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:

This data release comprises three tables containing cosmogenic beryllium-10 and aluminum-26 concentrations and related data from samples collected at four sites along the Charley River in central Alaska in 2019, prepared in 2020 at the University of Vermont (UVM), and measured at the Purdue Rare Isotope Measurement lab (PRIME) in 2021. The file "geology_siteLocations_Charley_bender_2022.csv" contains site locations in the NAD83 reference frame, and burial ages computed from raw data contained in the other files. All files are linked by the site_id field.

Purpose:

This dataset was developed for the purpose of dating two river terrace levels along the Charley River, a Yukon River tributary in central Alaska.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2019
Ending_Date: 2021

Currentness_Reference: observed

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -143.5
East_Bounding_Coordinate: -142.8
North_Bounding_Coordinate: 65.3
South_Bounding_Coordinate: 64.9

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:ASC468

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: GeoscientificInformation

Theme:

Theme_Keyword_Thesaurus: NASA GCMD Earth Science Keyword Thesaurus
Theme_Keyword: Aluminum-26 analysis
Theme_Keyword: Beryllium-10 analysis
Theme_Keyword: Sediments
Theme_Keyword: Stream terrace
Theme_Keyword: Sedimentation
Theme_Keyword: Downcutting
Theme_Keyword: Landscape processes

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: Geochronology
Theme_Keyword: Geomorphology
Theme_Keyword: Erosion

Place:

Place_Keyword_Thesaurus: USGS Geographic Names Information System (GNIS)
Place_Keyword: Alaska
Place_Keyword: Charley River

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:

Ongoing Bedrock Incision of the Fortymile River Driven by Pliocene–Pleistocene Yukon River Capture, Eastern Alaska, USA, and Yukon, Canada

Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: Geology
Issue_Identification: 46(7):635-638

Publication_Information:

Publication_Place: online
Publisher: The Geological Society of America

Other_Citation_Details:

Bender, A.M., Lease, R.O., Corbett, L.B., Bierman, P. Caffee, M.W. 2018. Ongoing bedrock incision of the Fortymile River driven by Pliocene–Pleistocene Yukon River capture, eastern Alaska, USA, and Yukon, Canada. Geology 46(7):635-638 doi:10.1130/G40203.1

Online_Linkage: https://doi.org/10.1130/G40203.1

Cross_Reference:

Citation_Information:

Originator: Bender, A.M. (ORCID: 0000-0001-7469-1957)
Originator: Lease, R.O. (ORCID: 0000-0003-2582-8966)
Originator: Corbett, L.B.
Originator: Bierman, P.
Originator: Caffee, M.W.
Originator: Rittenour, T.M.
Publication_Date: 2020
Title:

Late Cenozoic Climate Change Paces Landscape Adjustments to Yukon River Capture

Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: Nature Geoscience
Issue_Identification: 13(8):571–575

Publication_Information:

Publication_Place: online
Publisher: Springer Nature

Other_Citation_Details:

Bender, A.M., Lease, R.O., Corbett, L.B., Bierman, P., Caffee, M.W., Rittenour, T.M. 2020. Late Cenozoic climate change paces landscape adjustments to Yukon River capture. Nature Geoscience 13(8):571–575 doi:10.1038/s41561-020-0611-4

Online_Linkage: https://doi.org/10.1038/s41561-020-0611-4

Cross_Reference:

Citation_Information:

Yukon River Incision Drove Organic Carbon Burial in the Bering Sea During Global Climate Changes at 2.6 and 1 Ma

Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: Earth Surface Dynamics
Issue_Identification: 10(5):1041–1053

Publication_Information:

Publication_Place: online
Publisher: European Geosciences Union

Other_Citation_Details:

Bender, A.M., Lease, R.O., Corbett, L.B., Bierman, P.R., Caffee, M.W., Jones, J.V., Kreiner, D.C., 2022. Yukon River incision drove organic carbon burial in the Bering Sea during global climate changes at 2.6 and 1 Ma. Earth Surface Dynamics 10(5):1041–1053. doi:10.5194/esurf-10-1041-2022

Online_Linkage: https://doi.org/10.5194/esurf-10-1041-2022

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Analytical uncertainties of measured quantities reported at the 1-sigma range.

Logical_Consistency_Report: No unexpected values are used in the data.
Completeness_Report: This data set is complete; no data were omitted.
Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Horizontal location information was obtained from handheld GPS unit with horizontal accuracy of about five meters and is reported in the NAD83 reference frame.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Bender, A.M.
Originator: Lease, R.O.
Originator: Corbett, L.B.
Originator: Bierman, P.
Originator: Caffee, M.W.
Originator: Jones, J.V., III
Originator: Kreiner, D.C.
Publication_Date: 2022
Title:

Yukon River Incision Drove Organic Carbon Burial in the Bering Sea During Global Climate Changes at 2.6 and 1 Ma

Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: Earth Surface Dynamics
Issue_Identification: 10(5):1041–1053

Publication_Information:

Publication_Place: online
Publisher: European Geosciences Union

Other_Citation_Details:

Online_Linkage: https://doi.org/10.5194/esurf-10-1041-2022

Type_of_Source_Media: journal article
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2022

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Bender et al., 2022
Source_Contribution:

Reporting and interpretation of all the data contained in this release, and detailed descriptions of and references for the collection, treatment, and analysis of samples and data contained herein.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Bierman, Paul
Originator: Corbett, Lee B.
Publication_Date: 2020
Title:

National Science Foundation/University of Vermont Community Cosmogenic Facility

Geospatial_Data_Presentation_Form: tabular digital data
Online_Linkage: https://www.uvm.edu/cosmolab/

Type_of_Source_Media: laboratory
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2020

Source_Currentness_Reference: observed

Source_Citation_Abbreviation: NSF/UVM CCF
Source_Contribution: cosmogenic isotope sample preparation

Source_Information:

Source_Citation:

Citation_Information:

Originator: Caffee, Marc W.
Publication_Date: 2020
Title: Purdue Rare Isotope Measurement Laboratory
Geospatial_Data_Presentation_Form: tabular digital data
Online_Linkage: https://www.physics.purdue.edu/primelab/

Type_of_Source_Media: laboratory
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2020

Source_Currentness_Reference: observed

Source_Citation_Abbreviation: PRIME Lab
Source_Contribution:

accelerator mass spectrometry measurement of cosmogenic isotopes

Process_Step:

Process_Description:

Cosmogenic isochron burial dating - A fully referenced description of this method appears in (Bender et al., 2022). The isochron method requires sampling quartz-bearing sedimentary material archiving a range of pre-burial isotope concentrations at a single depth horizon (indicative of common burial history) buried by several meters of sediment, to minimize post-burial production of each isotope. In the high Charley River terrace gravel, samples were collected from three shallow pits (sample horizons 2-5 meters deep). The middle Charley River terrace gravel was sampled in one shallow pit. Samples were prepared at the University of Vermont. The Aluminum-26/Aluminum-27 and Beryllium-10/Beryllium-9 ratios were measured via accelerator mass spectrometry at the Purdue Rare Isotope Measurement Laboratory in several runs from 2017-2019 against standards listed in Bender et al., 2022. Each isotope measurement was corrected for background isotope levels by subtracting the average of all blank measurements (Bender et al., 2022).

Source_Used_Citation_Abbreviation: Bender et al., 2022
Source_Used_Citation_Abbreviation: NSF/UVM CCF
Source_Used_Citation_Abbreviation: PRIME Lab
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: North American Datum of 1983 (NAD83)
Ellipsoid_Name: Geodetic Reference System 1980 (GRS80)
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.257222101

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 1.00
Altitude_Distance_Units: meters
Altitude_Encoding_Method: Attribute values

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: geology_burialDating_aluminum26_Charley_bender_2022.csv
Entity_Type_Definition:

File contains cosmogenic aluminum-26 data from samples collected along the Charley River for dating the burial of sediment on river terraces. Presented in a Comma Separated Value (CSV) formatted table.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: site_id
Attribute_Definition:

Site_id is a field station identification assigned by the geologist. Value is a unique value, however many samples (sample_id) may be collected from a single site_id. Corresponds to the 'site_id' field in all tables include with this data package.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Unique field site identifier consisting of the last two digits of the year, abbreviation identifying the site (CR = Charley River), and a number.

Attribute:

Attribute_Label: sample_id
Attribute_Definition:

Unique alphanumeric sample identifier consisting of the site_id, an underscore, and a numeric or alphanumeric value.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

The sample identifier is a concatenation of the site_id, an underscore symbol, and a suffix. The suffixes "s" and "p" signify sand and pebble samples, respectively; other numeric suffix values represent clasts sampled for isochron burial dating of gravel deposits.

Attribute:

Attribute_Label: qtz_mass_g
Attribute_Definition:

Mass of quartz aliquot from which aluminum-26 and/or beryllium-10 have been extracted and measured.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 12.3615
Range_Domain_Maximum: 23.2974
Attribute_Units_of_Measure: grams

Attribute:

Attribute_Label: total_27Al_ug
Attribute_Definition: Total aluminum-27 measured in sample.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1469.703992
Range_Domain_Maximum: 9098.968376
Attribute_Units_of_Measure: micrograms

Attribute:

Attribute_Label: uncorr_26Al_27Al
Attribute_Definition:

Isotope ratio of aluminum-26 to aluminum-27, not corrected for background aluminum-26. Values given in scientific notation.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 6.51E-14
Range_Domain_Maximum: 3.12E-13
Attribute_Units_of_Measure: unitless ratio

Attribute:

Attribute_Label: uncorr_26Al_27Al_err
Attribute_Definition:

Uncertainty (1-sigma) of isotope ratio aluminum-26 to aluminum-27 not corrected for background aluminum-26. Values given in scientific notation.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 4.31E-15
Range_Domain_Maximum: 1.29E-14
Attribute_Units_of_Measure: unitless ratio

Attribute:

Attribute_Label: corr_26Al_27Al
Attribute_Definition:

Isotope ratio of aluminum-26 to aluminum-27 corrected for background aluminum-26 via blank subtraction described in Bender et al., 2022. Values given in scientific notation.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 6.44E-14
Range_Domain_Maximum: 3.12E-13
Attribute_Units_of_Measure: unitless ratio

Attribute:

Attribute_Label: corr_26Al_27Al_err
Attribute_Definition:

Uncertainty (1-sigma) of isotope ratio aluminum-26 to aluminum-27 corrected for background aluminum-26. Values given in scientific notation.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 4.32E-15
Range_Domain_Maximum: 1.29E-14
Attribute_Units_of_Measure: unitless ratio

Attribute:

Attribute_Label: conc_26Al_atoms_g
Attribute_Definition: Concentration of aluminum-26 in quartz aliquot.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 197081.1625
Range_Domain_Maximum: 1086088.04
Attribute_Units_of_Measure: atoms per gram

Attribute:

Attribute_Label: conc_26Al_atoms_g_err
Attribute_Definition:

Uncertainty (1-sigma) of concentration of aluminum-26 in quartz aliquot.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 13523.64896
Range_Domain_Maximum: 61607.16802
Attribute_Units_of_Measure: atoms per gram

Detailed_Description:

Entity_Type:

Entity_Type_Label: geology_siteLocations_Charley_bender_2022.csv
Entity_Type_Definition:

This file contains sample location (in the NAD83 reference frame) for the four different Charley River (Alaska) field sites where river terrace sediment was collected in 2019 for cosmogenic isochron burial age analysis, and reports the depositional ages computed from the raw data. This table is linked to the other tables contained in this data release by the site_id field. Presented in a Comma Separated Value (CSV) formatted table.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: site_id
Attribute_Definition:

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Unique field site identifier consisting of the last two digits of the year, abbreviation identifying the site (CR = Charley River), and a number.

Attribute:

Attribute_Label: lat_nad83
Attribute_Definition: Latitude in decimal degrees; datum NAD83
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 64.9314
Range_Domain_Maximum: 65.2641
Attribute_Units_of_Measure: Decimal degree (NAD83)

Attribute:

Attribute_Label: long_nad83
Attribute_Definition: Longitude in decimal degrees; datum NAD83
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -143.4836
Range_Domain_Maximum: -142.7468
Attribute_Units_of_Measure: Decimal degree (NAD83)

Attribute:

Attribute_Label: elevation
Attribute_Definition:

Elevation data collected with handheld GPS units have vertical accuracies of approximately 5 m and are reported relative to GEOID12B.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 277
Range_Domain_Maximum: 585
Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: age
Attribute_Definition:

Depositional age in millions of years computed as described under process steps and in source lineage.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.07
Range_Domain_Maximum: 2.22
Attribute_Units_of_Measure: millions of years

Attribute:

Attribute_Label: age_err
Attribute_Definition:

Uncertainty (1-sigma) of depositional age in millions of years computed as described under process steps and in source lineage. Values of -9999 represent no-data entries, and correspond to erosion rate samples.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.15
Range_Domain_Maximum: 0.26
Attribute_Units_of_Measure: millions of years

Attribute:

Attribute_Label: height
Attribute_Definition:

Height in meters of terrace tread above modern Charley River, measured in the field using a TruPulse 200L laser range finder.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 30
Range_Domain_Maximum: 141
Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: thickness
Attribute_Definition:

Thickness in meters of terrace gravel, measured in the field using a TruPulse 200L laser range finder.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5.5
Range_Domain_Maximum: 8.5
Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: depth
Attribute_Definition:

Depth in meters of the top of the ~30 cm-thick sample horizon below the terrace tread, measured in the field using a tape measure and TruPulse 200L laser range finder.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5.2
Range_Domain_Maximum: 7.0
Attribute_Units_of_Measure: meters

Detailed_Description:

Entity_Type:

Entity_Type_Label: geology_burialDating_beryllium10_Charley_bender_2022.csv
Entity_Type_Definition:

File contains cosmogenic beryllium-10 data from samples collected along the Charley River for dating the burial of sediment on river terraces. Presented in a Comma Separated Value (CSV) formatted table.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: site_id
Attribute_Definition:

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Unique field site identifier consisting of the last two digits of the year, abbreviation identifying the site (CR = Charley River), and a number.

Attribute:

Attribute_Label: sample_id
Attribute_Definition:

Unique alphanumeric sample identifier consisting of the site_id, an underscore, and a numeric or alphanumeric value.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Attribute:

Attribute_Label: qtz_mass_g
Attribute_Definition:

Mass of quartz aliquot from which aluminum-26 and/or beryllium-10 have been extracted and measured.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 12.3615
Range_Domain_Maximum: 23.2974
Attribute_Units_of_Measure: grams

Attribute:

Attribute_Label: mass_9Be_added_ug
Attribute_Definition: Mass of beryllium-9 added to sample
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 240.4775692
Range_Domain_Maximum: 243.7556324
Attribute_Units_of_Measure: micrograms

Attribute:

Attribute_Label: uncorr_10Be_9Be
Attribute_Definition:

Isotope ratio of beryllium-10 to beryllium-9, not corrected for background beryllium-10. Values given in scientific notation.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.80E-14
Range_Domain_Maximum: 3.13E-13
Attribute_Units_of_Measure: unitless ratio

Attribute:

Attribute_Label: uncorr_10Be_9Be_err
Attribute_Definition:

Uncertainty (1-sigma) of isotope ratio beryllium-10 to beryllium-9 not corrected for background beryllium-10. Values given in scientific notation.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.44E-15
Range_Domain_Maximum: 1.54E-14
Attribute_Units_of_Measure: unitless ratio

Attribute:

Attribute_Label: corr_10Be_9Be
Attribute_Definition:

Isotope ratio of beryllium-10 to beryllium-9 corrected for background beryllium-10 via blank subtraction described in Bender et al., 2022. Values given in scientific notation.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.73E-14
Range_Domain_Maximum: 3.13E-13
Attribute_Units_of_Measure: unitless ratio

Attribute:

Attribute_Label: corr_10Be_9Be_err
Attribute_Definition:

Uncertainty (1-sigma) of isotope ratio beryllium-10 to beryllium-9 corrected for background beryllium-10. Values given in scientific notation.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.45E-15
Range_Domain_Maximum: 1.54E-14
Attribute_Units_of_Measure: unitless ratio

Attribute:

Attribute_Label: conc_10Be_atoms_g
Attribute_Definition: Concentration of beryllium-10 in quartz aliquot.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 23157.81634
Range_Domain_Maximum: 220686.4027
Attribute_Units_of_Measure: atoms per gram

Attribute:

Attribute_Label: conc_10Be_atoms_g_err
Attribute_Definition:

Uncertainty (1-sigma) of concentration of beryllium-10 in quartz aliquot.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2920.075371
Range_Domain_Maximum: 11543.07673
Attribute_Units_of_Measure: atoms per gram

Charley River Cosmogenic Isotope Data Collected 2019-2021

Metadata: