Total organic carbon content of sediment core PS75/130-1

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Total organic carbon content of sediment core PS75/130-1

DOI: 10.1594/pangaea.818157
  • Organic
  • Carbon
  • Polarstern
  • Total
  • Element Analyser Chn
  • Leco
  • Awi_Paleo
  • Paleoenvironmental Reconstructions From Marine Sediments @ Awi
  • Gravity Corer (Kiel Type)
  • Ant-Xxvi/3
  • Ps75
  • Westernmost Getz Trough
  • Ps75/130-1
  • Inner Shelf (Basin South Of Gzw)


Microsoft Word - 659-2013_Pfeiffer-etal_Titelei.docx "Changing Polar Regions" - 25th International Congress on Polar Research 2013 - 57 DEGLACIATION OF THE WEST ANTARCTIC CONTINENTAL SHELF IN THE AMUNDSEN SEA SECTOR SINCE THE LAST GLACIAL MAXIMUM Claus-Dieter Hillenbrand1,*, James A. Smith1, Gerhard Kuhn2, Chris Poole3,4, David A. Hodell5, Harry Elderfield5, Sev Kender6, Mark Williams3, Victoria L. Peck1, Robert D. Larter1, Johann P. Klages2, Alastair G. C. Graham1, Matthias Forwick7 & Karsten Gohl2 1British Antarctic Survey, Cambridge, UK 2Alfred-Wegener-Institut Helmholtz- Zentrum für Polar- und Meeresforschung, Bremerhaven, Germany 3Department of Geology, University of Leicester, UK 4School of Earth and Environment, University of Leeds, UK 5Godwin Laboratory for Palaeoclimate Research, Department of Earth Sciences, University of Cambridge, UK 6British Geological Survey, Nottingham, UK 7Department of Geology, University of Tromsø, Norway The Amundsen Sea sector of the largely marine-based and therefore conditionally unstable West Antarctic Ice Sheet (WAIS) contains enough ice to raise global sea level by ca. 1.5 metres. At present, ice streams draining this sector into the Southern Ocean, especially glaciers flowing into Pine Island Bay in the eastern Amundsen Sea embayment, are undergoing considerable mass loss characterised by major thinning, flow acceleration and rapid grounding-line retreat. Sub-ice shelf melting by relatively warm Circumpolar Deep Water (CDW) upwelling onto the continental shelf is held responsible for these dynamical changes but atmospheric warming in West Antarctica may also have contributed to them. In contrast to the modern situation, the long-term history of the Amundsen Sea sector and the mechanisms forcing its deglaciation during the Holocene are only poorly constrained. We will present new palaeoenvironmenal data obtained from marine sediment cores collected in Pine Island Bay. The cores targeted shallo

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