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Geomorphology and glacial history of Rauer Group, East Antarctica.

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White, D and Bennike, O and Berg, S and Harley, SL and Fink, D and Kiernan, K and McConnell, A and Wagner, B (2009) Geomorphology and glacial history of Rauer Group, East Antarctica. Quaternary Research, 72. pp. 80-90. ISSN 1096-0287

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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
Keywords: Cosmogenic Weathering 10Be Ice sheet Schmidt hammer Raised beach Relative sea level
Journal or Publication Title: Quaternary Research
Page Range: pp. 80-90
ISSN: 1096-0287
Identification Number - DOI: 10.1016/j.yqres.2009.04.001
Additional Information: The definitive version is available at http://www.sciencedirect.com
Date Deposited: 23 Jun 2010 06:46
Last Modified: 18 Nov 2014 04:11
URI: http://eprints.utas.edu.au/id/eprint/9929
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