干旱区生态环境知识资源中心(Arid): Climate change during the last glacial period on the southeast margin of Badain Jaran Desert,Northwest China

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	Climate change during the last glacial period on the southeast margin of Badain Jaran Desert,Northwest China
	Fan Xiaolu; Zhang Xinyi; Tian Mingzhong
来源期刊	Journal of Mountain Science
ISSN	1672-6316
出版年	2019
卷号	16 期号:10 页码:2379-2388
英文摘要	Reconstruction of the desert paleoclimate is important to understand the mechanisms that triggered and/or enhanced climate change.Through optically stimulated luminescence (OSL) dating,grain size,magnetic susceptibility,X-ray powder diffraction (XRD) and geochemical indicators,we provide a welldated record of a sedimentary outcrop on the southeast margin of the Bardain Jaran Desert,Northwest China,during the last glacial period.Four Qz-OSL ages are obtained,41.03.4 ka,54.74.4 ka,59.55.0 ka and 66.85.8 ka,corresponding to the depths of 35 cm,70 cm,150 cm and 200 cm respectively.Indicators like grain size,clay content,magnetic susceptibility,XRD and geochemical index (e.g.Sr,Ba,Sr/Ca) jointly indicate abrupt climate changes at the depth of 35 cm (age,ca.41.0 ka) and 200 cm (age,ca.67 ka).Namely,the 280 cm sedimentary outcrop perfectly records a warm wet climate stage,corresponding to the late Marine Isotope Stages (MIS) 4 to the early MIS 3.Besides,there is a trend of grain size increase after around 40 ka BP,which is most likely a signal of wind strength change.Our research supports that enhancing Siberian High pressure system during the late MIS 3 played a key role in NW East Asia climate evolution.
英文关键词	Last glacial period Bardain Jaran Desert Climate change Siberian High pressure system XRD
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Geology
CSCD记录号	CSCD:6584548
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336182
作者单位	Fan Xiaolu, School of History Culture and Tourism,Fuyang Normal University, Fuyang, Anhui 236037, China.; Zhang Xinyi, School of History Culture and Tourism,Fuyang Normal University, Fuyang, Anhui 236037, China.; Tian Mingzhong, School of the Earth Science and Resources,China University of Geoscience, Beijing 100083, China.
推荐引用方式 GB/T 7714	Fan Xiaolu,Zhang Xinyi,Tian Mingzhong. Climate change during the last glacial period on the southeast margin of Badain Jaran Desert,Northwest China[J],2019,16(10):2379-2388.
APA	Fan Xiaolu,Zhang Xinyi,&Tian Mingzhong.(2019).Climate change during the last glacial period on the southeast margin of Badain Jaran Desert,Northwest China.Journal of Mountain Science,16(10),2379-2388.
MLA	Fan Xiaolu,et al."Climate change during the last glacial period on the southeast margin of Badain Jaran Desert,Northwest China".Journal of Mountain Science 16.10(2019):2379-2388.