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Accumulation and erosion of aeolian sediments in the northeastern Qinghai-Tibetan Plateau and implications for provenance to the Chinese Loess Plateau
Liu, Xiang-Jun1,2; Xiao, Guoqiao3; E, Chongyi4; Li, Xiangzhong2; Lai, Zhongping3; Yu, Lupeng5; Wang, Zhong1,6
2017-03-01
发表期刊JOURNAL OF ASIAN EARTH SCIENCES
卷号135页码:166-174
文章类型Article
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.
关键词Northeastern Qinghai-tibetan Plateau Chinese Loess Plateau Aeolian Sediments Accumulation And Erosion Optically Stimulated Luminescence
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]SAND-DUNE ACCUMULATION ; LAKE LEVEL VARIATIONS ; QILIAN SHAN CHINA ; GULIYA ICE CORE ; LATE-PLEISTOCENE ; QAIDAM BASIN ; PALEOENVIRONMENTAL IMPLICATIONS ; PALEOCLIMATIC IMPLICATIONS ; LACUSTRINE SEDIMENTS ; GONGHE BASIN
收录类别SCI
语种英语
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000394484600013
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/6204
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 Geol & Environm Qinghai Prov, Xining 810008, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710075, Peoples R China
3.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Peoples R China
4.Qinghai Normal Univ, Coll Biol & Geog, Xining 810008, Peoples R China
5.Linyi Univ, Coll Resources & Environm, Linyi 276000, Peoples R China
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Liu, Xiang-Jun,Xiao, Guoqiao,E, Chongyi,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,2017,135:166-174.
APA Liu, Xiang-Jun.,Xiao, Guoqiao.,E, Chongyi.,Li, Xiangzhong.,Lai, Zhongping.,...&Wang, Zhong.(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,135,166-174.
MLA Liu, Xiang-Jun,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):166-174.
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