globalchange  > 过去全球变化的重建
DOI: 10.1016/j.quascirev.2013.12.001
Scopus记录号: 2-s2.0-84907596396
论文题名:
Terrestrial and submarine evidence for the extent and timing of the Last Glacial Maximum and the onset of deglaciation on the maritime-Antarctic and sub-Antarctic islands
作者: Hodgson D.A.; Graham A.G.C.; Roberts S.J.; Bentley M.J.; Cofaigh C.T.; Verleyen E.; Vyverman W.; Jomelli V.; Favier V.; Brunstein D.; Verfaillie D.; Colhoun E.A.; Saunders K.M.; Selkirk P.M.; Mackintosh A.; Hedding D.W.; Nel W.; Hall K.; McGlone M.S.; Van der Putten N.; Dickens W.A.; Smith J.A.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2014
卷: 100
起始页码: 137
结束页码: 158
语种: 英语
英文关键词: Antarctic ice sheet ; Climate ; Deglaciation ; Maritime Antarctica glaciation ; Quaternary ; Sub-Antarctica
Scopus关键词: Glacial geology ; Glaciers ; Isotopes ; Submarines ; Antarctic ice sheets ; Climate ; Deglaciations ; Maritime Antarctica ; Quaternary ; Sub-Antarctica ; Ice ; continental shelf ; cosmogenic radionuclide ; deglaciation ; glacial history ; glacier dynamics ; ice sheet ; Last Glacial Maximum ; paleoclimate ; radiocarbon dating ; Antarctic Ice Sheet ; Antarctica ; Southern Ocean
英文摘要: This paper is the maritime and sub-Antarctic contribution to the Scientific Committee for Antarctic Research (SCAR) Past Antarctic Ice Sheet Dynamics (PAIS) community Antarctic Ice Sheet reconstruction. The overarching aim for all sectors of Antarctica was to reconstruct the Last Glacial Maximum (LGM) ice sheet extent and thickness, and map the subsequent deglaciation in a series of 5000 year time slices. However, our review of the literature found surprisingly few high quality chronological constraints on changing glacier extents on these timescales in the maritime and sub-Antarctic sector. Therefore, in this paper we focus on an assessment of the terrestrial and offshore evidence for the LGM ice extent, establishing minimum ages for the onset of deglaciation, and separating evidence of deglaciation from LGM limits from those associated with later Holocene glacier fluctuations. Evidence included geomorphological descriptions of glacial landscapes, radiocarbon dated basal peat and lake sediment deposits, cosmogenic isotope ages of glacial features and molecular biological data. We propose a classification of the glacial history of the maritime and sub-Antarctic islands based on this assembled evidence. These include: (Type I) islands which accumulated little or no LGM ice; (Type II) islands with a limited LGM ice extent but evidence of extensive earlier continental shelf glaciations; (Type III) seamounts and volcanoes unlikely to have accumulated significant LGM ice cover; (Type IV) islands on shallow shelves with both terrestrial and submarine evidence of LGM (and/or earlier) ice expansion; (Type V) Islands north of the Antarctic Polar Front with terrestrial evidence of LGM ice expansion; and (Type VI) islands with no data. Finally, we review the climatological and geomorphological settings that separate the glaciological history of the islands within this classification scheme. © 2014 The Authors.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/60174
Appears in Collections:过去全球变化的重建

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作者单位: British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, United Kingdom; Department of Geography, College of Life and Environmental Sciences, University of Exeter, Amory Building, Rennes Drive, Exeter EX4 4RJ, United Kingdom; Department of Geography, Durham University, South Rd, Durham DH1 3LE, United Kingdom; Laboratory for Protistology and Aquatic Ecology, Biology Department, Ghent University, Krijgslaan 281-S8, 9000 Ghent, Belgium; Université Paris 1 Panthéon Sorbonne - CNRS, Laboratoire de géographie physique, 1 Place A. Briand, 92195 Meudon, France; Laboratoire de Glaciologie et de Géophysique de l'Environnement, LGGE, UJF-CNRS, UMR5183, 54 rue Molière, 38402 St Martin d'Hères, France; School of Environmental and Life Sciences, The University of Newcastle, NSW 2308, Australia; Institute of Geography and the Oeschger Centre for Climate Change Research, University of Bern, Erlachstrasse 9, Trakt 3, Bern 3012, Switzerland; Department of Biological Sciences, Macquarie University, Sydney, NSW 2109, Australia; Antarctic Research Centre, Victoria University of Wellington, Wellington 6012, New Zealand; Department of Geography, University of South Africa, Florida Campus, Private Bag X6, Florida 1710, South Africa; Department of Geography and Environmental Science, University of Fort Hare, Alice Campus, Private Bag X1314, Alice 5700, South Africa; Geography Programme, University of Northern British Columbia, 3333 University Way, Prince George, BC V2N 479, Canada; Landcare Research, PO Box 40, Lincoln 7640, New Zealand; Department of Geology, Lund University, Sölvegatan 12, SE-223 62 Lund, Sweden

Recommended Citation:
Hodgson D.A.,Graham A.G.C.,Roberts S.J.,et al. Terrestrial and submarine evidence for the extent and timing of the Last Glacial Maximum and the onset of deglaciation on the maritime-Antarctic and sub-Antarctic islands[J]. Quaternary Science Reviews,2014-01-01,100
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