Totatlanika River Terrace Luminescence Age Data Collected 2020-2022

Identification_Information:

Citation:

Citation_Information:

Originator: Bender, Adrian (ORCID: 0000-0001-7469-1957)
Publication_Date: 20220930
Title:

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., 2022, Totatlanika River terrace luminescence age data collected 2020-2022: U.S. Geological Survey data release, https://doi.org/10.5066/P96KN145

Online_Linkage: https://doi.org/10.5066/P96KN145
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 dataset comprises three tables containing infrared stimulated luminescence (IRSL) ages and related data from samples collected at seven terrace sites along the Totatlanika River in central Alaska in 2020 and 2021. The IRSL ages and data were generated from the samples at the Utah State University Luminescence Lab. The ages were determined to enable computation of rates of bedrock incision along the Totatlanika River. The file "geology_BurialDating_IRSLSiteData_Totatlanika_bender_2022.csv" contains site locations in the NAD83 reference frame, and incision rates computed from listed field-measured terrace heights and IRSL depositional ages of terrace sand. The IRSL age data, in turn, are stored in the file "geology_BurialDating_IRSLAgeData_Totatlanika_bender_2022.csv" and are computed in part from raw data contained in the file "geology_BurialDating_IRSLDoseRate_Totatlanika_bender_2022.csv". Data in all files are linked by the "Sample" field.

Purpose:

This dataset was developed for the purpose of dating field-measured river terraces and calculating rates of river incision along the Totatlanika River in central Alaska.

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: -148.7658
East_Bounding_Coordinate: -148.5036
North_Bounding_Coordinate: 64.2058
South_Bounding_Coordinate: 64.0847

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:ASC488

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation

Theme:

Theme_Keyword_Thesaurus: NASA GCMD Earth Science Keyword Thesaurus
Theme_Keyword: erosion
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: luminescence dating
Theme_Keyword: geochronology
Theme_Keyword: geology
Theme_Keyword: geomorphology
Theme_Keyword: erosion

Place:

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

Originator: Bender, A. (ORCID: 0000-0001-7469-1957)
Originator: Lease, R.O. (ORCID: 0000-0003-2582-8966)
Originator: Rittenour, T.
Originator: Jones, J.V., III (ORCID: 0000-0002-6602-5935)
Publication_Date: 2023
Title: Rapid Active Thrust Faulting at the Northern Alaska Range Front
Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: Geology
Issue_Identification: .

Publication_Information:

Publication_Place: online
Publisher: GeoScienceWorld

Other_Citation_Details:

Bender, A.M., Lease, R.O., Rittenour, T., Jones, J.V., 2023. Rapid active thrust faulting at the northern Alaska Range front. Geology doi:10.1130/G51049.1

Online_Linkage: https://doi.org/10.1130/G51049.1

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Analytical uncertainties of measured quantities reported at the 2-sigma range, IRSL age uncertainty 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: Rittenour, T.
Originator: Jones, J.V., III
Publication_Date: Unknown
Title: Rapid active thrust faulting at the northern Alaska Range front
Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: Journal of TBD
Issue_Identification: .

Publication_Information:

Publication_Place: online
Publisher: TBD

Other_Citation_Details:

Bender, A.M., Lease, R.O., Rittenour, T., Jones, J.V., in prep, Rapid active thrust faulting at the northern Alaska Range front. Journal of TBD

Online_Linkage: https://doi.org/TBD

Type_of_Source_Media: publication
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 data contained in this release, and detailed methods.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Auclair, M.
Originator: Lamothe, M.
Originator: Huot, S.
Publication_Date: 2003
Title: Measurement of anomalous fading for feldspar IRSL using SAR
Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: Radiation Measurements
Issue_Identification: 37(4-5):487-492

Publication_Information:

Publication_Place: online
Publisher: Elsevier

Other_Citation_Details:

Auclair, M., Lamothe, M., Huot, S. 2003. Measurement of anomalous fading for feldspar IRSL using SAR. Radiation Measurements 37(4-5):487-492 doi:10.1016/S1350-4487(03)00018-0

Online_Linkage: https://doi.org/10.1016/S1350-4487(03)00018-0

Type_of_Source_Media: document
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2003

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Auclair et al 2003
Source_Contribution:

Description of analytical methods and references for the analyses.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Huntley, D.J.
Originator: Lamothe, M.
Publication_Date: 2001
Title:

Ubiquity of anomalous fading in K-feldspars and the measurement and correction for it in optical dating

Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: Canadian Journal of Earth Sciences
Issue_Identification: 38(7):1093-1106

Publication_Information:

Publication_Place: online
Publisher: Canadian Science Publishing

Other_Citation_Details:

Huntley, D.J., Lamothe, M., 2001. Ubiquity of anomalous fading in K-feldspars and the measurement and correction for it in optical dating. Canadian Journal of Earth Sciences 38(7):1093-1106 doi:10.1139/e01-013

Online_Linkage: https://doi.org/10.1139/e01-013

Type_of_Source_Media: document
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2001

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Huntley and Lamothe 2001
Source_Contribution:

Description of analytical methods and references for the analyses.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Mejdahl, V.
Publication_Date: 1979
Title:

Thermoluminescence dating: beta-dose attenuation in quartz grains

Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: Archaeometry
Issue_Identification: 21:61-72

Publication_Information:

Publication_Place: online
Publisher: Wiley

Other_Citation_Details:

Mejdahl, V. 1979. Thermoluminescence dating: beta-dose attenuation in quartz grains. Archaeometry 21:61-72 doi:10.1111/j.1475-4754.1979.tb00241.x

Online_Linkage: https://doi.org/10.1111/j.1475-4754.1979.tb00241.x

Type_of_Source_Media: document
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1979

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Mejdahl 1979
Source_Contribution:

Description of analytical methods and references for the analyses.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Galbraith, R.F.
Originator: Roberts, R.G.
Publication_Date: 2012
Title:

Statistical aspects of equivalent dose and error calculation and display in OSL dating: an overview and some recommendations

Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: Quaternary Geochronology
Issue_Identification: 11:1-27

Publication_Information:

Publication_Place: online
Publisher: Elsevier

Other_Citation_Details:

Galbraith, R.F., Roberts, R.G. 2012. Statistical aspects of equivalent dose and error calculation and display in OSL dating: an overview and some recommendations. Quaternary Geochronology 11:1-27 doi:10.1016/j.quageo.2012.04.020

Online_Linkage: https://doi.org/10.1016/j.quageo.2012.04.020

Type_of_Source_Media: document
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2012

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Galbraith and Roberts 2012
Source_Contribution: Describes age model used to compute IRSL age.

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Geological Survey Earth Resources Observation and Science Center (EROS)

Publication_Date: 2022
Title:

USGS EROS Archive - Digital Elevation - Interferometric Synthetic Aperture Radar (IFSAR) - Alaska

Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:

Publication_Place: Sioux Falls, South Dakota, USA
Publisher:

U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center

Other_Citation_Details:

Downloaded from USGS EarthExplorer https://earthexplorer.usgs.gov/

Online_Linkage: https://doi.org/10.5066/P9C064CO

Type_of_Source_Media: online database
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2022

Source_Currentness_Reference: access date

Source_Citation_Abbreviation: EROS
Source_Contribution: Digital Elevation Model (DEM) used to determine elevation

Process_Step:

Process_Description:

Infrared luminescence dating - A fully referenced description of this method appears in the supplement to Bender et al. (2022). All analyses performed at the Utah State University (USU) Luminescence Lab, North Logan, Utah. Samples are opened and processed under dim amber safelight conditions. Sample processing for feldspar infrared stimulated luminescence (IRSL) dating followed standard procedures involving sieving, HCl and bleach treatments, heavy liquid mineral density separation at 2.58 g per cubic cm with no HF pre-treatment to isolate the potassium-rich feldspar component of a narrow grain-size range, 75-250 microns. The lab follows the latest single-aliquot regenerative-dose (SAR) procedures for potassium feldspar dating in which the IRSL signal is measured at 50 degrees Celsius. SAR protocol includes tests for sensitivity correction and brackets the equivalent dose (DE) the sample received during burial by irradiating the sample at five different doses (below, at, and above the DE, plus a zero dose and a repeated dose to check for recuperation of the signal and sensitivity correction). The resultant DE data are fit with a saturating exponential curve. The IRSL age is calculated by correcting for fading (loss of signal with time) using the fading method of Auclair and others (2003) and the age correction model of Huntley and Lamothe (2001). The cumulative DE and age data are reported at 2-sigma error and were determined using the Central Age Model (CAM) or the Minimum Age Model (MAM), depending on the distribution of DE results and evidence for partial bleaching. For cases in which the samples have significant positive skew and overdispersion, ages are calculated based on the MAM. Dose-rate calculations were determined by chemical analysis of of the U, Th, K, and Rb content using ICP-MS and ICP-AES techniques by ALS Chemex in Elko, NV, using conversion factors from Guerin and others (2011). Internal grain beta dose rate was determined assuming 12.5%K and 400 ppm Rb attenuated to grain size (Mejdahl, 1979). Alpha contribution to dose rate determined using an efficiency factor, 'a-value', of 0.086 +/- 0.0009. The contribution of cosmic radiation to the dose rate was calculated using sample depth, elevation, and latitude and longitude. Dose rates are calculated based on water content, sediment chemistry, and cosmic contribution.

Process_Date: Unknown

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
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: geology_BurialDating_IRSLDoseRate_Totatlanika_bender_2022.csv
Entity_Type_Definition:

File contains information from which IRSL dose rates were computed as described in Process Steps.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: sample
Attribute_Definition:

Value is unique, however "sample" entries may repeat to refer to data obtained from different grain sizes. "sample" can be used as a join field to "sample" in the other tables in this data release.

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 geologist (ABA = Adrian Bender) or the field area (TOT = Totatlanika), and a number referencing the sample.

Attribute:

Attribute_Label: usu_num
Attribute_Definition:

Internal identifier assigned by the Utah State University (USU) Luminescence Laboratory.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Laboratory identifier consisting of Utah State University abbreviation (USU), a hyphen, and a unique number.

Attribute:

Attribute_Label: depth_m
Attribute_Definition:

Centered IRSL sample depth in meters below terrace tread, tape-measured in the field.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.35
Range_Domain_Maximum: 1.75
Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: water_prct
Attribute_Definition: Sample water content expressed as weight percentage.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.3
Range_Domain_Maximum: 11.2
Attribute_Units_of_Measure: percent

Attribute:

Attribute_Label: grainSz_min_um
Attribute_Definition: Minimum grain size in analyzed aliquots, in microns.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 75
Range_Domain_Maximum: 150
Attribute_Units_of_Measure: microns

Attribute:

Attribute_Label: grainSz_max_um
Attribute_Definition: Maximum grain size in analyzed aliquots, in microns.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 150
Range_Domain_Maximum: 250
Attribute_Units_of_Measure: microns

Attribute:

Attribute_Label: cosmicDoseRate_Gy_kyr
Attribute_Definition: Cosmic irradiation rate in Grays per thousand years.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.18
Range_Domain_Maximum: 0.22
Attribute_Units_of_Measure: Grays per thousand years

Attribute:

Attribute_Label: cosmicDoseRate_2sigma_Gy_kyr
Attribute_Definition: Cosmic irradiation rate 2-sigma uncertainty.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.02
Range_Domain_Maximum: 0.20
Attribute_Units_of_Measure: Grays per thousand years.

Attribute:

Attribute_Label: Subsample_grainSz
Attribute_Definition:

Size of subsample analyzed for elemental abundance (F, fine; M, medium; C, coarse).

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Letters refer to grain size: fine-F (<1.7 mm), medium-M (1.7-16 mm), coarse-C (>16 mm).

Attribute:

Attribute_Label: Subsample_grainSz_prct
Attribute_Definition:

Weighted proportions (%) of subsamples by grain size used with chemistry in gamma dose rate calculation.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: percent

Attribute:

Attribute_Label: K_prct
Attribute_Definition:

Radioelemental concentration of potassium determined using inductively coupled plasma spectrometry techniques.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.78
Range_Domain_Maximum: 4.70
Attribute_Units_of_Measure: percent

Attribute:

Attribute_Label: K_2sigma_prct
Attribute_Definition:

Analytical uncertainty (2-sigma) of radioelemental concentration of potassium determined using inductively coupled plasma spectrometry techniques.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.02
Range_Domain_Maximum: 0.12
Attribute_Units_of_Measure: percent

Attribute:

Attribute_Label: Rb_ppm
Attribute_Definition:

Radioelemental concentration of rubidium determined using inductively coupled plasma spectrometry techniques.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 28.3
Range_Domain_Maximum: 189.5
Attribute_Units_of_Measure: parts per million

Attribute:

Attribute_Label: Rb_2sigma_ppm
Attribute_Definition:

Analytical uncertainty (2-sigma) of radioelemental concentration of rubidium determined using inductively coupled plasma spectrometry techniques.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.1
Range_Domain_Maximum: 7.6
Attribute_Units_of_Measure: percent

Attribute:

Attribute_Label: Th_ppm
Attribute_Definition:

Radioelemental concentration of thorium determined using inductively coupled plasma spectrometry techniques.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.1
Range_Domain_Maximum: 18.1
Attribute_Units_of_Measure: parts per million

Attribute:

Attribute_Label: Th_2sigma_ppm
Attribute_Definition:

Analytical uncertainty (2-sigma) of radioelemental concentration of thorium determined using inductively coupled plasma spectrometry techniques.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.2
Range_Domain_Maximum: 1.6
Attribute_Units_of_Measure: parts per million

Attribute:

Attribute_Label: U_ppm
Attribute_Definition:

Radioelemental concentration of uranium determined using inductively coupled plasma spectrometry techniques.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.5
Range_Domain_Maximum: 3.5
Attribute_Units_of_Measure: parts per million

Attribute:

Attribute_Label: U_2sigma_ppm
Attribute_Definition:

Analytical uncertainty (2-sigma) of radioelemental concentration of uranium determined using inductively coupled plasma spectrometry techniques.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.1
Range_Domain_Maximum: 0.2
Attribute_Units_of_Measure: parts per million

Detailed_Description:

Entity_Type:

Entity_Type_Label: geology_BurialDating_IRSLSiteData_Totatlanika_bender_2022.csv
Entity_Type_Definition:

This file contains seven Totatlanika River IRSL sample ages, locations, elevations, field-measured heights, and calculated incision rates.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: sample
Attribute_Definition:

Unique field site identifier consisting of the last two digits of the year, abbreviation identifying the geologist (ABA = Adrian Bender) or the field area (TOT = Totatlanika), in some cases appended a number referencing the sample. "sample" can be used as a join field to "sample" in the other tables in this data release.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Attribute:

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

Range_Domain:

Range_Domain_Minimum: 64.0847
Range_Domain_Maximum: 64.2058
Attribute_Units_of_Measure: decimal degree

Attribute:

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

Range_Domain:

Range_Domain_Minimum: -148.7658
Range_Domain_Maximum: -148.5036
Attribute_Units_of_Measure: decimal degree

Attribute:

Attribute_Label: elev_m
Attribute_Definition:

Altitude in meters extracted from 5 meter pixel Alaska IfSAR (interferometric synthetic aperture radar) digital elevation model.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 310
Range_Domain_Maximum: 567
Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: sampleSiteDescription
Attribute_Definition:

Description of field sample site, begins with informal field site name.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain: Unique field site description.

Attribute:

Attribute_Label: fieldHt_tread_m
Attribute_Definition:

Terrace tread height above modern channel (at approximate "normal" water level) measured with a TruPulse 200L laser range finder. Difference between strath and tread height is total terrace deposit thickness.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 4
Range_Domain_Maximum: 75
Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: fieldHt_strath_m
Attribute_Definition:

Terrace strath height above modern channel (at approximate "normal" water level) measured with a TruPulse 200L laser range finder. Difference between strath and tread height is total terrace deposit thickness.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 70
Attribute_Units_of_Measure: meters

Attribute:

Attribute_Label: irslAge_kyr
Attribute_Definition:

Infrared stimulated luminescence age dates burial of sand on terrace.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 4.23
Range_Domain_Maximum: 6.80
Attribute_Units_of_Measure: kiloyears (thousands of years)

Attribute:

Attribute_Label: irslAge_1sigma_kyr
Attribute_Definition:

Uncertainty (1-sigma) of infrared stimulated luminescence age that dates burial of sand on terrace.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.45
Range_Domain_Maximum: 6.37
Attribute_Units_of_Measure: kiloyears (thousands of years)

Attribute:

Attribute_Label: irate
Attribute_Definition:

Bedrock incision rate equal to strath height divided by IRSL age. NAN value is present.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 5.64
Attribute_Units_of_Measure: meters per kiloyear (equivalent to millimeters per year)

Attribute:

Attribute_Label: irate_1sigma
Attribute_Definition:

Uncertainty (1-sigma) of bedrock incision rate, calculated by propagating nominal 5 meter strath height uncertainty and IRSL age uncertainty in quadrature. NAN value is present.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.13
Range_Domain_Maximum: 1.15
Attribute_Units_of_Measure: meters per kiloyear (equivalent to millimeters per year)

Attribute:

Attribute_Label: note
Attribute_Definition:

Note explains whether and why age and height information are not interpreted for incision rates.

Attribute_Definition_Source: Author defined.
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: interpreted
Enumerated_Domain_Value_Definition:

Age and height data geomorphically consistent and interpreted for incision rate.

Enumerated_Domain_Value_Definition_Source: Author defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value:

age not interpreted; anomalously young attributed to bioturbation by roots

Enumerated_Domain_Value_Definition:

Age and height data could not be interpreted due to an anomalously young IRSL age, which was attributed to bioturbation of the sampled sand deposit by roots.

Enumerated_Domain_Value_Definition_Source: Author defined

Detailed_Description:

Entity_Type:

Entity_Type_Label: geology_BurialDating_IRSLAgeData_Totatlanika_bender_2022.csv
Entity_Type_Definition: File contains
Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: sample
Attribute_Definition:

Value is unique, however "sample" entries may repeat to refer to data obtained from different grain sizes. "sample" can be used as a join field to "sample" in the other tables in this data release.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Attribute:

Attribute_Label: usu_num
Attribute_Definition:

Internal identifier assigned by the Utah State University (USU) Luminescence Laboratory.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Laboratory identifier consisting of Utah State University abbreviation (USU), a hyphen, and a unique number.

Attribute:

Attribute_Label: numAliquots_calc
Attribute_Definition: Number of aliquots used in age calculation.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 12
Range_Domain_Maximum: 17
Attribute_Units_of_Measure: numeric count

Attribute:

Attribute_Label: numAliquots_analyzed
Attribute_Definition: Number of aliquots analyzed.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 14
Range_Domain_Maximum: 23
Attribute_Units_of_Measure: numeric count

Attribute:

Attribute_Label: doseRate_Gy_kyr
Attribute_Definition: Irradiation rate in Grays per thousand years (kiloyear).
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.91
Range_Domain_Maximum: 6.01
Attribute_Units_of_Measure: Grays per kiloyear

Attribute:

Attribute_Label: doseRate_2sigma_Gy_kyr
Attribute_Definition:

Uncertainty (2-sigma) of irradiation rate in Grays per thousand years (kiloyear).

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.08
Range_Domain_Maximum: 0.27
Attribute_Units_of_Measure: Grays per kiloyear

Attribute:

Attribute_Label: fadingRate_prct_decade
Attribute_Definition: Percent loss of luminescence signal per decade (Auclair, 2003)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.3
Range_Domain_Maximum: 5.7
Attribute_Units_of_Measure: Percent per decade

Attribute:

Attribute_Label: fadingRate_2sigma_prct_decade
Attribute_Definition: Uncertainty (2-sigma) of fading rate in percent per decade.
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.2
Range_Domain_Maximum: 1.0
Attribute_Units_of_Measure: percent per decade

Attribute:

Attribute_Label: equivalentDose_Gy
Attribute_Definition: Equivalent radiation dose in Grays
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5.27
Range_Domain_Maximum: 198.12
Attribute_Units_of_Measure: Grays

Attribute:

Attribute_Label: equivalentDose_2sigma_Gy
Attribute_Definition: Uncertainty (2-sigma) of equivalent radiation dose in Grays
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.71
Range_Domain_Maximum: 35.42
Attribute_Units_of_Measure: Grays

Attribute:

Attribute_Label: irslAge_kyr
Attribute_Definition:

Infrared stimulated luminescence age in thousands of years (kiloyears).

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 4.23
Range_Domain_Maximum: 65.80
Attribute_Units_of_Measure: kiloyears

Attribute:

Attribute_Label: irslAge_1sigma_kyr
Attribute_Definition:

Uncertainty (1-sigma) of infrared stimulated luminescence age in thousands of years (kiloyears).

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.45
Range_Domain_Maximum: 6.37
Attribute_Units_of_Measure: kiloyears

Attribute:

Attribute_Label: ageMdl
Attribute_Definition:

Indicates minimum (MAM) or central (CAM) age model of Galbraith and Roberts (2012) used to compute IRSL age.

Attribute_Definition_Source: Galbraith and Roberts 2012
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: CAM
Enumerated_Domain_Value_Definition: Central age model of Galbraith and Roberts (2012)
Enumerated_Domain_Value_Definition_Source: Galbraith and Roberts 2012

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: MAM
Enumerated_Domain_Value_Definition: Minimum age model of Galbraith and Roberts (2012)
Enumerated_Domain_Value_Definition_Source: Galbraith and Roberts 2012

Totatlanika River Terrace Luminescence Age Data Collected 2020-2022

Metadata: