Pleistocen collapse of the West Antarctic ice sheet

Reed P. Scherer, Ala Aldahan, Slawek Tulaczyk, Göran Possnert, Hermann Engelhardt, Barclay Kamb

Research output: Contribution to journalArticlepeer-review

229 Citations (Scopus)

Abstract

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 106 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.

Original languageEnglish
Pages (from-to)82-85
Number of pages4
JournalScience
Volume281
Issue number5373
DOIs
Publication statusPublished - Jul 3 1998
Externally publishedYes

ASJC Scopus subject areas

  • General

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