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Evidence for an abrupt climatic reversal during the Last Interglacial on the northeast Qinghai-Tibetan Plateau
Lu, Huayu; Vandenberghe, Jef; Miao, Xiaodong; Tan, Hongbing; Ma, Haizhou
2006-10-01
发表期刊QUATERNARY INTERNATIONAL
卷号154页码:136-140
文章类型Article
摘要Climatic change over Qinghai-Tibetan Plateau is controlled by alternation of the plateau summer and winter monsoon circulation, which is triggered by thermodynamic and kinetic effects of the high plateau morphology. Loess-paleosol sequences in northeast Qinghai-Tibetan Plateau are investigated to reconstruct variations of the plateau monsoon changes during the Last Glacial-Interglacial cycle. On the basis of grain-size data from two loess-paleosol sequences that can be used as a proxy indicator of the plateau monsoon climate changes, we find a short climatic reversal during transition from the most warm-humid period of the Last Interglacial period (corresponding with marine oxygen isotope stage 5e (MIS 5e)) to the subsequent relatively cold-dry period (corresponding with MIS 5d). In contrast to the Younger Dryas event, this climatic event shifted toward more humid conditions reflects an episode of reduced strength of the plateau winter monsoon and increased influence of the plateau summer monsoon. The age of this paleoclimatic event is estimated at 111-113 ka BP. This climatic reversal expresses instability of the plateau monsoon system during transformation from a wet-warm to a dry-cold climate. It may have been caused by the high topography that amplified climatic change in the Northern Hemisphere during the transition from MIS 5e to MIS 5d. (c) 2006 Elsevier Ltd and INQUA. All rights reserved.
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]CHINESE LOESS PLATEAU ; MAGNETIC-SUSCEPTIBILITY ; ISOTOPE STAGE-5 ; MONSOON ; RECORD ; PALEOSOL ; SCALE ; VARIABILITY ; SEQUENCES ; SEDIMENTS
收录类别ISTP ; SCI
语种英语
WOS研究方向Physical Geography ; Geology
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号WOS:000240762100016
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/5791
专题青海盐湖研究所知识仓储
作者单位1.Nanjing Univ, Dept Geog, Nanjing 210093, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710075, Peoples R China
3.Vrije Univ Amsterdam, Fac Earth & Life Sci, Dept Quaternary Geol & Geomorphol, NL-1081 HV Amsterdam, Netherlands
4.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China
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Lu, Huayu,Vandenberghe, Jef,Miao, Xiaodong,et al. Evidence for an abrupt climatic reversal during the Last Interglacial on the northeast Qinghai-Tibetan Plateau[J]. QUATERNARY INTERNATIONAL,2006,154:136-140.
APA Lu, Huayu,Vandenberghe, Jef,Miao, Xiaodong,Tan, Hongbing,&Ma, Haizhou.(2006).Evidence for an abrupt climatic reversal during the Last Interglacial on the northeast Qinghai-Tibetan Plateau.QUATERNARY INTERNATIONAL,154,136-140.
MLA Lu, Huayu,et al."Evidence for an abrupt climatic reversal during the Last Interglacial on the northeast Qinghai-Tibetan Plateau".QUATERNARY INTERNATIONAL 154(2006):136-140.
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