globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2012.10.031
论文题名:
Late Pleistocene glaciations in the Gissar Range, Tajikistan, based on 10Be surface exposure dating
作者: Zech R.; Röhringer I.; Sosin P.; Kabgov H.; Merchel S.; Akhmadaliev S.; Zech W.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2013
卷: 369
起始页码: 253
结束页码: 261
语种: 英语
英文关键词: Central Asia ; Cosmogenic nuclides ; Paleoclimate ; Quaternary ; Tajikistan
英文摘要: Mountain glaciers are sensitive indicators for climate change, especially with regard to summer temperature and precipitation. Glacial chronologies from Central Asia have therefore been suggested to provide valuable information about past changes in temperature, as well as precipitation and related changes in atmospheric circulation. However, available age control is still sparse. Here we present a glacial chronology for the Gissar Range, Tajikistan, based on thirteen 10Be surface exposure ages. Prominent moraine lobes document glacial advances in phase with the global Last Glacial Maximum (LGM) during Marine Isotope Stage (MIS) 2. Rapid and significant deglaciation occurred already at ~20ka as inferred from recessional stages. An older and slightly more extensive glaciation could be dated to MIS 4, whereas the timing of the most extensive glaciation remains speculative. In contrast to the glacial chronologies from the nearby, more arid Pamir and Tien Shan, where MIS 3 and MIS 5 moraines likely document past periods with increased precipitation, glaciers in the more humid Gissar Range predominantly recorded past changes in temperature and summer insolation. © 2012 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69903
Appears in Collections:过去全球变化的重建

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作者单位: Geological Institute, ETH Zurich, Switzerland; Chair of Geomorphology, University of Bayreuth, Germany; Institute of Soil Science, Tajik Academy of Agriculture, Dushanbe, Tajikistan; Institute of Chemistry, Tajik Academy of Sciences, Dushanbe, Tajikistan; Helmholtz Zentrum, Dresden-Rossendorf, Germany; Institute of Soil Science and Soil Geography, University of Bayreuth, Germany

Recommended Citation:
Zech R.,Röhringer I.,Sosin P.,et al. Late Pleistocene glaciations in the Gissar Range, Tajikistan, based on 10Be surface exposure dating[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2013-01-01,369
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