Timing of glacier fluctuations and trigger mechanisms in eastern Qinghai-Tibetan Plateau during the late Quaternary

ISL OpenIR > 青海盐湖研究所知识仓储

	Timing of glacier fluctuations and trigger mechanisms in eastern Qinghai-Tibetan Plateau during the late Quaternary
	Ou, XianJiao 1,2,4; Lai, ZhongPing2,3 ; Zhou, ShangZhe 4; Zeng, LanHua 1
	2014-05-01
发表期刊	QUATERNARY RESEARCH
卷号	81 期号:3 页码:464-475
关键词	Osl Chronology Glacier Fluctuations Late Quaternary Trigger Mechanisms Eastern Qinghai-tibetan Plateau
摘要	It is highly debated whether glacial advances on the Qinghai-Tibetan Plateau (QTP) occurred as a response to temperature cooling, or whether they were forced by an increase in moisture brought by the intensive Indian summer monsoon. We here report a case study investigating this issue. Multiple moraine series in the Yingpu Valley, Queer Shan ranges of the Hengduan Mountains, and eastern QTP, provide an excellent archive for examining the timing and trigger mechanism of glacier fluctuations. Twenty-seven optically stimulated luminescence (OSL) samples of glacial sediments were collected from this valley. The quartz OSL ages show that the moraine series of Y-1, I, M and O were formed during the Late Holocene, Late Glacial, the global Last Glacial Maximum (LGM) and Marine Oxygen Isotope Stage (MIS) 3 (likely mid-MIS-3). The youngest Y-2 moraines probably formed during the Little Ice Age (LIA). The oldest H moraines formed before MIS-3. We found that glacial advances during the late Quaternary at the Yingpu Valley responded to cold stages or cold events rather than episodes of enhanced summer monsoon and moisture. As a result, glaciers in the monsoonal Hengduan Mountains were mainly triggered by changes in temperature. Millennial time scale temperature oscillations might have caused the multiple glacial advances. (C) 2013 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/363002/5716
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所
作者单位	1.Jiaying Univ, Sch Geog & Tourism, Meizhou 514015, Peoples R China 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China 3.Chinese Acad Sci, Qinghai Inst Salt Lakes, CAS Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China 4.S China Normal Univ, Sch Geog Sci, Guangzhou 510631, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Ou, XianJiao,Lai, ZhongPing,Zhou, ShangZhe,et al. Timing of glacier fluctuations and trigger mechanisms in eastern Qinghai-Tibetan Plateau during the late Quaternary[J]. QUATERNARY RESEARCH,2014,81(3):464-475.
APA	Ou, XianJiao,Lai, ZhongPing,Zhou, ShangZhe,&Zeng, LanHua.(2014).Timing of glacier fluctuations and trigger mechanisms in eastern Qinghai-Tibetan Plateau during the late Quaternary.QUATERNARY RESEARCH,81(3),464-475.
MLA	Ou, XianJiao,et al."Timing of glacier fluctuations and trigger mechanisms in eastern Qinghai-Tibetan Plateau during the late Quaternary".QUATERNARY RESEARCH 81.3(2014):464-475.