Exposure Ages of Glacial Erratics and Bedrock along Byrd Glacier to Determine Long-Term Thinning History, Antarctica, 2019
Cosmogenic surface exposure chronologies were used to quantitatively constrain past rates of ice thinning, and the absolute timing of ice discharge and thinning events.
We sampled glacial erratics and bedrock from Byrd Glacier (LW1 Nunatak, LW2 Nunatak, Lonewolf Nuntataks, Tiger Nunatak, Mt. Tadpole). Samples were analysed for their exposure history, and all sites contained glacial erratics. In particular, the Lonewolf Nunataks sites, which is located along the margin of the East Antarctic Ice Sheet revealed a plethora of glacial cobbles.
Details of laboratory procedures can be found in the related publication.
RELATED PUBLICATION: https://doi.org/10.1002/esp.5701
GET DATA: https://version2.ice-d.org/antarctica/publication/1139/
Simple
- Date (Creation)
- 2024-02-22T17:17:01
- Date (Publication)
- 2024-02-22T17:17:01
Identifier
- Purpose
- To identify the thinning history of three major outlet glaciers since the last glacial maximum, approximately 20,000 years ago.
- Status
- completed Completed
- Keywords
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- K861A
- BYRD GLACIER
- GCMD Earth Science and Earth Science Services Keywords
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- GLACIAL RETREAT
- GLACIER ELEVATION/ICE SHEET ELEVATION
- ISOTOPES
- ALUMINUM-26 ANALYSIS
- NUNATAKS
- GLACIATION
- GLACIER STRIATIONS/GROOVES
- BERYLLIUM-10 ANALYSIS
- ISOTOPE RATIOS
- DIGITAL ELEVATION/TERRAIN MODEL (DEM)
- ROCHE MOUNTONNEES/SHEEPBACK
- PALEOCLIMATE RECONSTRUCTIONS
- ISOTOPE MEASUREMENTS
- GLACIAL DRIFT
- SEDIMENTARY ROCK VERTICAL/GEOGRAPHIC DISTRIBUTION
- BEDROCK LITHOLOGY
- ISOTOPIC AGE
- GCMD Platform/Sources Keywords
-
- FIELD SURVEYS
- FIELD INVESTIGATION
- GROUND-BASED OBSERVATIONS
- GCMD Instrument/Sensors Keywords
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- COMPASSES
- INCLINOMETERS
- GNSS RECEIVER
- GCMD Locations Keywords
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- ANTARCTICA
- Use limitation
- This data set conforms to the CC BY Attribution License (https://creativecommons.org/licenses/by/4.0/)
- Hierarchy level
- Dataset
- Date
- Statement
- Creative Commons Attribution 4
- gmd:disseminationConstraints
- License
- Access constraints
- License
- Use constraints
- License
- Metadata language
- English
- Character set
- utf8 UTF8
- Topic category
-
- Geoscientific information
- Begin date
- 2019-12-23T00:00:00
- End date
- 2020-01-11T12:00:00
- Distribution format
-
- File identifier
- 79607650-9fba-4a7a-beb4-7d5ad3deab3e XML
- Metadata language
- English
- Character set
- anyValidURI
- Hierarchy level
- Dataset
- Date stamp
- 2024-02-23T02:01:36
- Metadata standard name
- ISO 19115-1
- Metadata standard version
- 2018