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No significant ice-sheet expansion beyond present ice margins during the past 4500 yr at Rauer Group, East Antarctica

Published online by Cambridge University Press:  20 January 2017

Sonja Berg ,
Bernd Wagner ,
Duanne A. White  and
Martin Melles
Sonja Berg*
Affiliation:
Institute of Geology and Mineralogy, University of Cologne, D-50674 Cologne, Germany
Bernd Wagner
Affiliation:
Institute of Geology and Mineralogy, University of Cologne, D-50674 Cologne, Germany
Duanne A. White
Affiliation:
Department of Physical Geography, Macquarie University, NSW 2109, Australia
Martin Melles
Affiliation:
Institute of Geology and Mineralogy, University of Cologne, D-50674 Cologne, Germany
*
⁎Corresponding author. Fax: +49 221 470 5149. E-mail address:[email protected] (S. Berg).
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Abstract

The history of glacial advances and retreats of the East Antarctic ice sheet during the Holocene is not well-known, due to limited field evidence in both the marine and terrestrial realm. A 257-cm-long sediment core was recovered from a marine inlet in the Rauer Group, East Antarctica, 1.8 km in front of the present ice-sheet margin. Radiocarbon dating and lithological characteristics reveal that the core comprises a complete marine record since 4500 yr. A significant ice-sheet expansion beyond present ice margins therefore did not occur during this period.

Keywords

Rauer GroupGlacial re-advanceHoloceneMarine sedimentsEast Antarctica
Type
Short Paper
Information
Quaternary Research , Volume 74 , Issue 1 , July 2010 , pp. 23 - 25
Copyright
University of Washington

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