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Pleistocene Collapse of the West Antarctic Ice Sheet

Scherer, Reed P. and Aldahan, Ala and Tulaczyk, Slawek and Possnert, Göran and Engelhardt, Hermann and Kamb, Barclay (1998) Pleistocene Collapse of the West Antarctic Ice Sheet. Science, 281 (5373). pp. 82-85. ISSN 0036-8075. doi:10.1126/science.281.5373.82.

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Some glacial sediment samples recovered from beneath the West Antarctic ice sheet at ice stream B contain Quaternary diatoms and up to 108 atoms of beryllium-10 per gram. Other samples contain no Quaternary diatoms and only background levels of beryllium-10 (less than 10^6 atoms per gram). The occurrence of young diatoms and high concentrations of beryllium-10 beneath grounded ice indicates that the Ross Embayment was an open marine environment after a late Pleistocene collapse of the marine ice sheet.

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Additional Information:© 1998 American Association for the Advancement of Science. 14 April 1998; accepted 14 May 1998. Support for this study came from Uppsala University, the Swedish Natural Sciences Research Council, and the Knut and Alice Wallenberg Foundation to R. P. S., A. A. and G. P., and from a U. S. NSF grant OPP9319018 to B. K. and H. E.
Funding AgencyGrant Number
Uppsala UniversityUNSPECIFIED
Swedish Natural Science Research CouncilUNSPECIFIED
Knut and Alice Wallenberg FoundationUNSPECIFIED
Issue or Number:5373
Record Number:CaltechAUTHORS:20140522-095331661
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Official Citation:Scherer, R. P., Aldahan, A., Tulaczyk, S., Possnert, G., Engelhardt, H., & Kamb, B. (1998). Pleistocene Collapse of the West Antarctic Ice Sheet. Science, 281(5373), 82-85. doi: 10.1126/science.281.5373.82
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:45887
Deposited By: Jason Perez
Deposited On:27 May 2014 16:10
Last Modified:10 Nov 2021 17:17

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