Luminescence-dated aeolian deposits of late Quaternary age in the southern Tibetan Plateau and their implications for landscape history

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	Luminescence-dated aeolian deposits of late Quaternary age in the southern Tibetan Plateau and their implications for landscape history
	Lai, ZhongPing1,3 ; Kaiser, Knut 2,3; Bruckner, Helmut 3
	2009-11-01
发表期刊	QUATERNARY RESEARCH
卷号	72 期号:3 页码:421-430
关键词	Aeolian Deposits Quartz Luminescence Dating Palaeoenvironmental Change Tibetan Plateau
摘要	Aeolian deposits are widely distributed in the interior of the Tibetan Plateau. and their chronology is poorly known. It is not yet clear whether they accumulated only after the last deglaciation, or over a longer time We applied quartz OR dating to aeolian samples from the Lhasa area with OSI, ages ranging from 2 9 0 2 to at least 118 +/- 11 ka. The probability density frequency (PDF) distribution of 24 ages reveals age clusters at about 3, 8, 16-21, 33. and 79-83 ka. indicating enhanced sediment accumulation then. The results show that aeolian deposition Occurred throughout most of the last 100 ka This implies that 1) an ice sheet covering the whole Tibetan Plateau during the last glacial maximum (LGM) could not have existed: and 2) erosion during the last deglaciation was not as strong as previously proposed. Such that not all pre-Holocene loess was removed The age distribution shown in the PDF indicates that aeolian accumulation is episodic Sand-formation events revealed by age clusters at 3, 8, and 16-21 ka imply roughly synchronous environmental responses to corresponding global-scale and events. (C) 2009 University of Washington Published by Elsevier Inc All rights reserved.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/5886
专题	青海盐湖研究所知识仓储盐湖地质与环境实验室
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Luminescence Dating Grp, Xining 810008, Peoples R China 2.German Acad Sci & Engn, D-14473 Potsdam, Germany 3.Univ Marburg, Fac Geog, D-35032 Marburg, Germany
推荐引用方式 GB/T 7714	Lai, ZhongPing,Kaiser, Knut,Bruckner, Helmut. Luminescence-dated aeolian deposits of late Quaternary age in the southern Tibetan Plateau and their implications for landscape history[J]. QUATERNARY RESEARCH,2009,72(3):421-430.
APA	Lai, ZhongPing,Kaiser, Knut,&Bruckner, Helmut.(2009).Luminescence-dated aeolian deposits of late Quaternary age in the southern Tibetan Plateau and their implications for landscape history.QUATERNARY RESEARCH,72(3),421-430.
MLA	Lai, ZhongPing,et al."Luminescence-dated aeolian deposits of late Quaternary age in the southern Tibetan Plateau and their implications for landscape history".QUATERNARY RESEARCH 72.3(2009):421-430.