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The onset of deglaciation of Cumberland Bay and Stromness Bay, South Georgia

Published online by Cambridge University Press:  28 February 2005

N. VAN DER PUTTEN
Affiliation:
Laboratory for Palaeoecology and Landscape Genesis, Ghent University, Department of Geography, S8/B2, Krijgslaan, 281, B-9000 Gent, Belgium
C. VERBRUGGEN
Affiliation:
Laboratory for Palaeoecology and Landscape Genesis, Ghent University, Department of Geography, S8/B2, Krijgslaan, 281, B-9000 Gent, Belgium

Abstract

Carbon dating of basal peat deposits in Cumberland Bay and Stromness Bay and sediments from a lake in Stromness Bay, South Georgia indicates deglaciation at the very beginning of the Holocene before c. 9500 14C yr BP. This post-dates the deglaciation of one local lake which has been ice-free since at least 15 700 14C yr BP on account of its atypical geomorphological location. The latter indicates the likely presence of floristic refugia on South Georgia during the Last Glacial Maximum from which newly exposed terrestrial and aquatic habitats were rapidly colonized.

Type
Research Article
Copyright
© Antarctic Science Ltd 2005

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