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(Article of periodic en Anglais - 1989)

Document title

Application of tandem accelerator mass-spectrometer dating to late pleistocene-holocene sediments of the East Antarctic continental shelf

Abstract

Carbon fixed by phytoplankton and foraminifera is strongly influenced by old, glacial-derived CO2. Thus, reservoir corrections of up to 5 500 yr are needed for the C14 dates. Iceberg turbation reworks foraminifera so that dates from resulting deposits (diamictons) are interpreted as maximum ages. The consistency of corrected ages from the shelf, along with the sedimentologic interpretation, suggests a rather recent recession, perhaps mid-Holocene for this portion of the East Antarctic ice sheet. Further application of the TAMS method should help clarify other problems concerning the late Quaternary glacial history of Antarctica

Source

Article of periodic

published at : Quaternary research / ISSN 0033-5894 / CODEN QRESAV

Editor : Elsevier, San Diego, CA - ETATS-UNIS (1970)

Millesime : 1989, vol. 31, no2 [pp. 277-287]

Bibliographic references : 30 réf.

Language

Anglais

INIST-CNRS, Cote INIST : 15739

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