Sediment record of the last 1.8 Ma in the Amundsen Sea

• Main Authors: Hillenbrand, Claus-Dieter, Fütterer, Dieter K, Grobe, Hannes, Frederichs, Thomas
• Format: Dataset
• Language: English
• Published: PANGAEA 2002
• Subjects: Adelaide Island; Amundsen Sea; Antarctic Peninsula; ANT-VI/2; ANT-XI/3; Anvers Island; Argentine Islands; AWI_Paleo; Bellingshausen Sea; Giant box corer; GKG; Gravity corer (Kiel type); Marguerite Bay; MUC; MultiCorer; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS12; PS12/185; PS12/186; PS12/193; PS12/194; PS12/195; PS12/196; PS12/199; PS12/200; PS1554-1; PS1555-1; PS1557-1; PS1558-1; PS1559-1; PS1560-1; PS1563-1; PS1564-1; PS2522-1; PS2524-1; PS2525-1; PS2526-1; PS2527-1; PS2528-1; PS2529-1; PS2531-1; PS2532-2; PS2533-1; PS2534-2; PS2537-1; PS2538-1; PS2539-2; PS2540-1; PS2541-2; Antarctic; West Antarctic Ice Sheet; Argentine; Marguerite; Anvers; Antarc*; Berichte zur Polarforschung; Ice Sheet; Polar Research; Polarforschung; Reports on polar research
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.711660; https://doi.org/10.1594/PANGAEA.711660

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 palaeoproductivity 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.