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Glacial Crooked Lake, Vestfold Hills, East Antarctica

Published online by Cambridge University Press:  27 October 2009

D.B. Gore ,
J. Pickard ,
A.S. Baird  and
J.A. Webb
D.B. Gore
Affiliation:
Department of Geography, The University of Newcastle, Callaghan, NSW 2308, Australia
J. Pickard
Affiliation:
Graduate School of the Environment, acquarie University, NSW 2109, Australia
A.S. Baird
Affiliation:
Department of Geography, The University of Newcastle, Callaghan, NSW 2308, Australia
J.A. Webb
Affiliation:
Department of Geography, The University of Newcastle, Callaghan, NSW 2308, Australia
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Abstract

Glacial Crooked Lake was an ice-dammed impoundment in Vestfold Hills, East Antarctica, that had a volume of (250 ± 45) × 10 m. The impoundment is inferred to have existed during deglaciation following the Late Holocene Chelnok Advance of Sørsdal Glacier. The dam released water incrementally, allowing the formation of four major series of shorelines with a maximum height of 24 m above the current lake level of 22 m asl. Water from Glacial Crooked Lake overflowed into Watts Lake downstream, allowing saltwater there to mix, dilute, and be transported to the sea via Ellis Rapids. In this way water in Watts Lake became fresh, and alluvial fans consisting of cobbles and boulders formed below Crooked Lake and Ellis Rapids.

Type
Articles
Information
Polar Record , Volume 32 , Issue 180 , January 1996 , pp. 19 - 24
Copyright
Copyright © Cambridge University Press 1996

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