title: Pleistocene collapse of the west antarctic ice sheet
abstract: Some glacial sediment samples recovered from beneath the West Antarctic ice sheet at ice stream B contain Quaternary diatoms and up to 10(8) 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.
authors.affiliation: R. P. Scherer and A. Aldahan, Department of Earth Sciences, Uppsala University, Villavagen 16, S-752 36 Uppsala, Sweden. S. Tulaczyk, H. Engelhardt, B. Kamb, Department of Geological and Planetary Sciences, California Institute of Technology,
authors.initials: RP
authors.lastname: Scherer
authors.initials: A
authors.lastname: Aldahan
authors.initials: S
authors.lastname: Tulaczyk
authors.initials: G
authors.lastname: Possnert
authors.initials: H
authors.lastname: Engelhardt
authors.initials: B
authors.lastname: Kamb