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Ice-damming and fluvial erosion in the Vestfold Hills, East Antarctica

Published online by Cambridge University Press:  13 May 2004

Damian B. Gore
Damian B. Gore
Affiliation:
Department of Geography, University of Newcastle, New South Wales, 2308, Australia
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Abstract

An ice dam with a former impoundment volume of 1.1 × 106 m3 is reported from the Vestfold Hills, East Antarctica. The ice of the dam was derived from wind-drifted snow subsequently changed into ice by normal summer melt and freeze processes. The reformation (after 1979 and 1987) and failure of this ice dam (during 1987 and 1990) indicates the potential for the release of geomorphologically significant flows in a polar climate. The origin of a nearby fluvially eroded channel is attributed to the release of an ice-dammed impoundment. The potential of such flows for reworking glacial debris may be important when considering the sedimentology of former proglacial areas.

Keywords

Antarcticafluvial erosionhydrologyice damVestfold Hills

Information

Type
Papers—Earth Sciences and Glaciology
Information
Antarctic Science , Volume 4 , Issue 2 , June 1992 , pp. 227 - 234
Copyright
© Antarctic Science Ltd 1992

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