9ddd50c8-cd08-4afe-b245-f6891f1d9a3f eng utf8 dataset dataset NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom polardatacentre@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact 2023-07-09 ISO 19115 Geographic Information - Metadata ISO 19115:2003(E) European Petroleum Survey Group (EPSG) Geodetic Parameter Registry 2008-11-12 publication European Petroleum Survey Group EPSGadministrator@iogp.org https://www.epsg-registry.org/ EPSG Geodetic Parameter Dataset The EPSG Geodetic Parameter Dataset is a structured dataset of Coordinate Reference Systems and Coordinate Transformations, accessible through this online registry. information publisher urn:ogc:def:crs:EPSG::3031 6.18.3 Cosmogenic Be-10 data and calculated surface exposure ages from nunataks adjacent to Pine Island Glacier in the Hudson Mountains, West Antarctica 2023-07-09 creation 2023-07-09 revision 2023-07-09 publication 2023-07-09 released 1.0 https://doi.org/10.5285/9ddd50c8-cd08-4afe-b245-f6891f1d9a3f doi GB/NERC/BAS/PDC/01759 https://data.bas.ac.uk/ NE/S006710/1 award NE/S006753/1 award NE/S00663X/1 award Please cite this item as: Nichols, K., Rood, D., Wilcken, K., & Johnson, J. (2023). Cosmogenic Be-10 data and calculated surface exposure ages from nunataks adjacent to Pine Island Glacier in the Hudson Mountains, West Antarctica (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/9ddd50c8-cd08-4afe-b245-f6891f1d9a3f This dataset consists of measurements of cosmogenic 10Be in quartz from a set of erratic cobbles collected from the surfaces of nunataks in West Antarctica. The cobbles were collected during the 2019-20 Antarctic field season from the Hudson Mountains, which are situated adjacent to Pine Island Glacier. The dataset includes cosmogenic nuclide (10Be) exposure ages and all field (sample locations and elevations) and analytical laboratory (quartz and beryllium carrier masses, Be-10/Be-9 ratios) data for field samples and procedural blanks required to calculate the ages. 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). No credit. completed Nichols, Keir Imperial College London Researcher author Rood, Dylan Imperial College London Researcher author Wilcken, Klaus Australian Nuclear Science and Technology Organisation Researcher author Johnson, Joanne British Antarctic Survey Researcher author NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information pointOfContact asNeeded completed EARTH SCIENCE > Land Surface > Geomorphology > Glacial Landforms/Processes EARTH SCIENCE > Solid Earth > Geomorphology > Glacial Landforms/Processes theme Global Change Master Directory (GCMD) Science Keywords 2026-01-27 publication 23 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) Greenbelt MD United States of America https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Antarctica Cosmogenic nuclides Glacial geology Holocene Pine Island Glacier Surface exposure ages theme Pine Island Glacier Antarctica Hudson Mountains Antarctica West Antarctica Antarctica Evans Knoll Antarctica Winkie Nunatak Antarctica Shepherd Dome Antarctica Inman Nunatak Antarctica Meyers Nunatak Antarctica Amundsen Sea Antarctica place Land cover Geology theme GEMET - INSPIRE themes, version 1.0 2021-01-06 revision otherRestrictions no limitations to public access otherRestrictions no limitations license Open Government Licence v3.0 otherRestrictions No restrictions apply url url largerWorkCitation url url crossReference textTable eng utf8 geoscientificInformation -100.4182 -98.7478 -74.9054 -74.8247 2019-11-28 2019-12-12 173.0 779.0 urn:ogc:def:crs:EPSG::5714 MSL height Not specific to any location or epoch. Hydrography. It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk. NERC EDS UK Polar Data Centre +44 (0)1223 221400 British Antarctic Survey, High Cross, Madingley Road Cambridge Cambridgeshire CB3 0ET United Kingdom PDCServiceDesk@bas.ac.uk https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/ information distributor text/csv text/plain bytes 10240 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=9ddd50c8-cd08-4afe-b245-f6891f1d9a3f WWW:LINK-1.0-http--link Get Data Download data download bytes 10240 https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=9ddd50c8-cd08-4afe-b245-f6891f1d9a3f WWW:LINK-1.0-http--link Get Data Download data download dataset Methodology: Samples (erratic cobbles perched on presently-exposed mountain peaks next to Pine Island Glacier) were collected by Dr Joanne S Johnson (British Antarctic Survey) during the 2019-20 austral summer. Latitude, altitude, and elevation measurements of the location of the samples were made using a Javad Triumph II GPS receiver. The sample heights above ellipsoid were corrected to orthometric heights (height above geoid EGM08 in metres above sea level) using Precise Point Positioning software. Laboratory chemistry was conducted in the CosmIC Laboratory at Imperial College London. Quartz purification followed the methods of Kohl and Nishiizumi (1992). Isotope dilution chemistry and beryllium purification used the methods of Corbett et al. (2016). Be-10/Be-9 ratios were measured by accelerator mass spectrometry at ANSTO using the methods of Wilcken et al. (2017) and normalised to the standard values of Nishiizumi et al. (2007). Laboratory data were then converted to Be-10 concentrations and, finally, exposure ages using an online exposure age calculator (Balco et al., 2008). Exposure ages were calculated using the default global production rate and two different cosmogenic nuclide scaling methods (known as St and LSDn). Data collection: Exposure ages were calculated using version 3 of the online exposure age calculators available at http://hess.ess.washington.edu. Javad Triumph II GPS receiver Precise Point Positioning software Data quality: Quartz purity was tested using inductively coupled plasma optical emission spectrometry (ICP-OES). For isotope dilution chemistry, a procedural blank (beryllium carrier processed with no quartz) was processed for every 11 samples, resulting in 13 total procedural blanks. This dataset of blank measurements includes those from batches of other samples processed during the same few months as those in this study. We also processed two replicate measurements and one aliquot of the laboratory intercomparison material CRONUS A. In the file titled 'Analytical data and exposure ages', there is no value in the column titled 'Mass carrier (g)' for sample EVK-102 (BAS ID R19.4.2). This is because EVK-102 contains native Be, so the total Be (in mg) was quantified using ICP-OES analysis. asNeeded completed