NERC Data Catalogue Service
Cosmogenic 10Be data and calculated surface exposure ages for 41 cobbles and boulders collected from nunataks adjacent to Larter and Lucchitta glaciers in the Hudson Mountains, West Antarctica
This dataset consists of measurements of cosmogenic 10Be in quartz from a set of 41 erratic cobbles and boulders collected from the surfaces of nunataks in West Antarctica. The erratics were collected during the 2019-20 Antarctic field season from the Hudson Mountains, which are situated immediately to the north of Pine Island Glacier. The samples in this dataset were collected from nunataks (Webber Nunatak, Mount Moses, Slusher Nunatak, Dean Nunataks, Wold Nunatak, and Siren Rock) located adjacent to Larter and Lucchitta glaciers which dissect the area. The dataset includes cosmogenic nuclide (10Be) exposure ages and all field (sample locations and elevations) and analytical laboratory (quartz and beryllium carrier masses, 10Be/9Be ratios) data for field samples and procedural blanks required to calculate the exposure ages.
This project was funded by Natural Environment Research Council (NERC: Grants NE/S006710/1, NE/S006753/1, and NE/S00663X/1) and National Science Foundation (NSF: Grant OPP 2317097). Australian Nuclear Science and Technology Organisation (ANSTO) Centre for Accelerator Science award AP12872, through the National Collaborative Research Infrastructure Strategy (NCRIS).
Simple
- Alternate title
- Polar Data Centre (PDC) record GB/NERC/BAS/PDC/02025
- Date (Publication)
- 2025-04-01
- Identifier
- http://www.antarctica.ac.uk/dms/metadata.php?id= / GB/NERC/BAS/PDC/02025
- Maintenance and update frequency
- unknown Unknown
- Keywords
-
- NDGO0001
- NERC OAI Harvesting
-
- NERC_DDC
- GCMD Parameter Valids
-
- EARTH SCIENCE > Land Surface > Geomorphology > Glacial Landforms/Processes
- BAS Free-text keywords
-
- Antarctica
- Cosmogenic nuclides
- Glacial geology
- Holocene
- ITGC
- Larter Glacier
- Lucchitta Glacier
- Pine Island Glacier
- Surface exposure ages
- Use limitation
- This data is governed by the NERC data policy (http://www.nerc.ac.uk/research/sites/data/policy/) and supplied under Open Government Licence v.3 (http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- This data is governed by the NERC data policy (http://www.nerc.ac.uk/research/sites/data/policy/) and supplied under Open Government Licence v.3 (http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/).
- Metadata language
- EnglishEnglish
- Topic category
-
- Geoscientific information
))
- Begin date
- 2019-11-25
- End date
- 2019-12-31
- Reference system identifier
- OGP / urn:ogc:def:crs:EPSG::4326
- Distribution format
-
- Protocol
- http
- Name
- GET DATA
- Function
- download Download
- Hierarchy level
- dataset Dataset
Domain consistency
- Measure identification
- INSPIRE / Conformity_001
Conformance result
- Date
- Explanation
- See the referenced specification
- Pass
- No
- Statement
- Quartz purity was tested using inductively coupled plasma optical emission spectrometry (ICP-OES). For isotope dilution chemistry, one procedural blank (carrier-only) was processed for every 11 samples, and each batch of samples is assigned a batch number. The procedural blank used to correct the 10Be concentration of each sample is dependent on the time period during which it was processed in the CosmIC Laboratory (processed_blank_data.csv). Beryllium was extracted from samples in batch one at the same time as the samples presented in Balco et al. (2023), Nichols et al. (2023), and Marschalek et al. (2024). Therefore, the blank value used to correct the 10Be concentrations in batch one is the same as that used to correct 10Be concentrations in the aforementioned studies (the mean and standard deviation of 12 batches of samples, 10Be/9Be = 1.73 x 10-15 ± 4.82 x 10-16; 30287 ± 8456 10Be atoms; processed_blank_data.csv). Samples in batch two were processed in the year following those in batch one. Therefore, samples in batch two are corrected with a different blank value (the mean and standard deviation of two process blanks, BLK300822 and BLK050922, 10Be/9Be = 2.71 x10-15 ± 3.61 x 10-16, 47410 ± 6255 10Be atoms; processed_blank_data.csv). Samples in batches three, four, and five were processed later in the same year as those in batch two. A batch-specific blank value is therefore used to correct the 10Be concentrations of samples in batches three (BLK120922, 10Be/9Be = 2.13 x10-15 ± 3.41 x 10-16, 37088 ± 5939 10Be atoms), four (BLK260922, 10Be/9Be = 1.86 x10-15 ± 3.88 x 10-16, 32550 ± 6786 10Be atoms), and five (BLK041022, 10Be/9Be = 4.50 x 10-15 ± 5.31 x 10-16, 78589 ± 9262 10Be atoms; processed_blank_data.csv). In all cases, uncertainties in the sample and blank values are propagated in quadrature.
- File identifier
- GB_NERC_BAS_PDC_02025 XML
- Metadata language
- EnglishEnglish
- Hierarchy level
- dataset Dataset
- Date stamp
- 2025-04-01
- Metadata standard name
- NERC profile of ISO19115:2003
- Metadata standard version
- 1.0
Overviews
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