Accumulation and erosion of aeolian sediments in the northeastern Qinghai-Tibetan Plateau and implications for provenance to the Chinese Loess Plateau

doi:10.1016/jjseaes.2016.12.034

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	Accumulation and erosion of aeolian sediments in the northeastern Qinghai-Tibetan Plateau and implications for provenance to the Chinese Loess Plateau
	Li, Xiangzhong 5; Lai, Zhongping 4; Yu, Lupeng 2; Wang, Zhong 3,6; Liu, Xiang-Jun 5,6; Xiao, Guoqiao 4; E, Chongyi 1
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2017-03-01
卷号	135 期号:2017 页码:166-174
关键词	Northeastern Qinghai-tibetan Plateau Chinese Loess Plateau Aeolian Sediments Accumulation And Erosion Optically Stimulated Luminescence
DOI	10.1016/jjseaes.2016.12.034
文献子类	Article
英文摘要	The northern and northeastern Qinghai-Tibetan Plateau (QTP) is regarded as one important source region of the Chinese Loess Plateau (CLP). However, how the fine grain sediments in this region were transported to the CLP remains debatable. In this study, we dated aeolian sediments, alluviums, beach sediments, and sand wedges in the northeastern QTP using optical dating, combined with previously reported ages, explored the aeolian sediment deposition patterns in this region. The dating results shown that aeolian sediments mainly accumulated during the marine isotope stage (MIS) 3 and since the last deglaciation, alluvial sediments mainly deposited during the middle to late MIS 3 (between similar to 40 ka and 22 ka), and sand wedges formed during the MIS 4 and MIS 2 cold intervals. Based on the sedimentary stratigraphic characteristics and existing optical dating chronologies, we propose that fine grain sediments in the northern and northedstern QTP were eroded and carried to the CLP by westerly wind during last glacial and stadial cold stages. However, during last interglacial and interstadial warm stages, aeolian sediments deflated from western barren lands and deserts were mainly trapped in the northeastern QTP, and some were transported to the Alax arid zone or Yinchuan-Hetao plain by rivers that flow out of QTP, then transported to the CLP by northwesterly Asian winter monsoon (AWM). This cold stage westerly wind transport, warm stage rivers plus AWM transport pattern has existed at least since the late middle Pleistocene. (C) 2016 Elsevier Ltd. All rights reserved.
WOS关键词	SAND-DUNE ACCUMULATION ; LAKE LEVEL VARIATIONS ; QILIAN SHAN CHINA ; GULIYA ICE CORE ; LATE-PLEISTOCENE ; QAIDAM BASIN ; PALEOENVIRONMENTAL IMPLICATIONS ; PALEOCLIMATIC IMPLICATIONS ; LACUSTRINE SEDIMENTS ; GONGHE BASIN
WOS研究方向	Geology
语种	英语
WOS记录号	WOS:000394484600013
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5509]
专题	地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
作者单位	1.Qinghai Normal Univ, Coll Biol & Geog, Xining 810008, Peoples R China 2.Linyi Univ, Coll Resources & Environm, Linyi 276000, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710075, Peoples R China 6.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Geol & Environm Qinghai Prov, Xining 810008, Peoples R China
推荐引用方式 GB/T 7714	Li, Xiangzhong,Lai, Zhongping,Yu, Lupeng,et al. Accumulation and erosion of aeolian sediments in the northeastern Qinghai-Tibetan Plateau and implications for provenance to the Chinese Loess Plateau[J]. JOURNAL OF ASIAN EARTH SCIENCES,2017,135(2017):166-174.
APA	Li, Xiangzhong.,Lai, Zhongping.,Yu, Lupeng.,Wang, Zhong.,Liu, Xiang-Jun.,...&E, Chongyi.(2017).Accumulation and erosion of aeolian sediments in the northeastern Qinghai-Tibetan Plateau and implications for provenance to the Chinese Loess Plateau.JOURNAL OF ASIAN EARTH SCIENCES,135(2017),166-174.
MLA	Li, Xiangzhong,et al."Accumulation and erosion of aeolian sediments in the northeastern Qinghai-Tibetan Plateau and implications for provenance to the Chinese Loess Plateau".JOURNAL OF ASIAN EARTH SCIENCES 135.2017(2017):166-174.