Beryllium-10 exposure ages for Pope Glacier from a scoria cone 1.5 km west of Mount Murphy in the Amundsen Sea Embayment

Adams, Jonathan R; Rood, Dylan H; Wilcken, Klaus; Roberts, Stephen J; Johnson, Joanne S;

2022 || British Geological Survey - National Geoscience Data Centre (UKRI/NERC)


The dataset contains 12 new Be-10 cosmogenic nuclide surface exposure ages. The samples were collected from a scoria cone 1.5 km west of Mt. Murphy an exposed volcanic edifice adjacent to Pope Glacier in the Amundsen Sea Embayment, Antarctica. Samples of erratic cobbles which showed evidence of transport by ice were collected over the 2015-2016 AmuNdsen Sea Embayment Exposure Dating (ANISEED) Field Season, prepared at the CosmIC laboratory, Imperial College London and measured for Be-10 at the Australian Nuclear Science and Technology Organisation. Beryllium-10 concentrations were measured by Accelerated Mass Spectrometry (AMS). Samples were measured to determine timing of deglaciation of two rock outcrops to better constrain the ice sheet lowering history of Pope Glacier during the Holocene. Study forms part of the wider International Thwaites Glacier Collaboration Project (ITGC). Samples were collected by Dr. Joanne Johnson and Dr. Stephen Roberts (British Antarctic Survey), supported by field assistants Alistair Docherty and Iain Rudkin. Sample preparation for 10Be measurement was carried out by Jonathan Adams - PhD candidate affiliated with British Antarctic Survey/ Imperial College London under the supervision of Dr. Dylan Rood - Imperial College London. AMS measurements of Beryllium-10 concentrations were performed by Dr. Klaus Wilcken - Australia's Nuclear Science and Technology Organisation (ANSTO).

National Science Foundation (NSF: Grant OPP-1738989) and Natural Environment Research Council (NERC: Grants NE/S006710/1, NE/S006753/1 and NE/K012088/1 and studentship to JRA). ITGC Contribution No. ITGC.

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  • geochemistry
Source http://dx.doi.org/10.5285/8f275626-5f22-48df-95e5-cdc8f204a897
Source publisher British Geological Survey - National Geoscience Data Centre (UKRI/NERC)
DOI 10.5285/8f275626-5f22-48df-95e5-cdc8f204a897
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  • DataManager
  • Natural Environment Research Council;

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  • Natural Environment Research Council;

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  • Natural Environment Research Council;
References
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  • Adams, J. R., Johnson, J. S., Roberts, S. J., Mason, P. J., Nichols, K. A., Venturelli, R. A., Wilcken, K., Balco, G., Goehring, B., Hall, B., Woodward, J., & Rood, D. H. (2022). New 10Be exposure ages improve Holocene ice sheet thinning history near the grounding line of Pope Glacier, Antarctica. The Cryosphere, 16(12), 4887–4905. https://doi.org/10.5194/tc-16-4887-2022
  • 10.5194/tc-16-4887-2022
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Contact
  • UK Polar Data Centre
  • Natural Environment Research Council;
Citation Adams, J. R., Rood, D. H., Wilcken, K., Roberts, S. J., & Johnson, J. S. (2022). Beryllium-10 exposure ages for Pope Glacier from a scoria cone 1.5 km west of Mount Murphy in the Amundsen Sea Embayment (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/8F275626-5F22-48DF-95E5-CDC8F204A897
Collection period(s)
  • 2015-12-10 - 2016-01-31
Geo location(s)
  • Pope Glacier Antarctica
  • Kay Peak Antarctica
  • Mount Murphy Antarctica
  • Crosson Ice Shelf Antarctica
Spatial coordinates
  • eLong -111.0179
  • nLat -75.21627
  • sLat -75.21948
  • wLong -111.0231