Journal
GEO-MARINE LETTERS
Volume 22, Issue 2, Pages 51-59Publisher
SPRINGER
DOI: 10.1007/S00367-002-0097-7
Keywords
ice-rafted debris; glaciomarine sedimentation; Pleistocene; West Antarctic Ice Sheet; Amundsen Sea
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Records of glaciomarine deposition recovered from the West Antarctic continental margin in the Amundsen Sea allow the reconstruction of the behaviour of the West Antarctic Ice Sheet (WAIS) in response to the natural climatic changes of the last 1.8 million years. Contents of gravel-sized and lithogenic components represent the input and redeposition of glaciogenic debris, whereas variations in the proportions of the calcareous sediment fraction reflect palaeo-productivity changes. All proxies, which are regarded as sensitive to a WAIS collapse, changed markedly during the global climatic cycles, but do not confirm a complete disintegration of the WAIS during the Pleistocene.
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