Late Quaternary glaciation and deglaciation of the Bunger Hills, Antarctica

The Bunger Hills were covered by the Antarctic Ice Sheet during the last glaciation. During deglaciation the ice sheet margin collapsed into the marine inlets and the sea entered the oasis before 7.7 ka BP. Raised beaches occur widely below 8.5 m and indicate uplift at 1.4 m ka −1 during the middle...

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Bibliographic Details
Published in:Antarctic Science
Main Authors: Adamson, Donald A., Colhoun, Eric A.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1992
Subjects:
Geology
Ecology, Evolution, Behavior and Systematics
Oceanography
Antarctic
The Antarctic
Bunger Hills
Edisto
Edisto Ice Tongue
Antarc*
Antarctic Science
Antarctica
Ice Sheet
Online Access:http://dx.doi.org/10.1017/s0954102092000658
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102092000658
Description
Summary:The Bunger Hills were covered by the Antarctic Ice Sheet during the last glaciation. During deglaciation the ice sheet margin collapsed into the marine inlets and the sea entered the oasis before 7.7 ka BP. Raised beaches occur widely below 8.5 m and indicate uplift at 1.4 m ka −1 during the middle and late Holocene. After the coastal inlets were formed, the Edisto Ice Tongue and Apfels Glacier still impinged on land margins in the west of the oasis. Two sets of marginal moraines were formed; the Older Edisto Moraines after 6.2 ka BP and the Younger Edisto Moraines during the last few centuries. The margins of the Antarctic Ice Sheet and Apfels Glacier in the south have maintained their present positions since at least 5.6 ka BP and probably 10 ka BP.

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