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Abstract

The presence of glacial sediments across the Rauer Group indicates that the East Antarctic ice sheet formerly
covered the entire archipelago and has since retreated at least 15 km from its maximum extent. The degree of
weathering of these glacial sediments suggests that ice retreat from this maximum position occurred
sometime during the latter half of the last glacial cycle. Following this phase of retreat, the ice sheet margin
has not expanded more than ∼1 km seaward of its present position. This pattern of ice sheet change matches
that recorded in Vestfold Hills, providing further evidence that the diminutive Marine Isotope Stage 2 ice
sheet advance in the nearby Larsemann Hills may have been influenced by local factors rather than a regional
ice-sheet response to climate and sea-level change.

Item Type:	Article
Authors/Creators:	White, D and Bennike, O and Berg, S and Harley, SL and Fink, D and Kiernan, K and McConnell, A and Wagner, B
Keywords:	Cosmogenic Weathering 10Be Ice sheet Schmidt hammer Raised beach Relative sea level
Journal or Publication Title:	Quaternary Research
ISSN:	1096-0287
DOI / ID Number:	10.1016/j.yqres.2009.04.001
Additional Information:	The definitive version is available at http://www.sciencedirect.com
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