Glacial Crooked Lake, Vestfold Hills, East Antarctica

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...

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Bibliographic Details
Published in:Polar Record
Main Authors: Gore, D.B., Pickard, J., Baird, A.S., Webb, J.A.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1996
Subjects:
General Earth and Planetary Sciences
Ecology
Geography, Planning and Development
East Antarctica
Vestfold Hills
Vestfold
Crooked Lake
Sørsdal Glacier
Chelnok
Ellis Rapids
Watts Lake
Antarc*
Antarctica
Polar Record
Online Access:http://dx.doi.org/10.1017/s0032247400027637
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247400027637
Description
Summary: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.

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