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Aeolian sediments evolution controlled by fluvial processes, climate change and human activities since LGM in the Qaidam Basin, Qinghai-Tibetan Plateau
Yu, LuPeng1,2,3; Lai, ZhongPing3,4; An, Ping2; Pan, Tong2; Chang, QiuFang5,6
2015-06-22
发表期刊QUATERNARY INTERNATIONAL
卷号372页码:23-32
文章类型Article
摘要Aeolian sediments are widely distributed in the eastern Qaidam Basin (QB), the main habitats for human in the hyper-arid basin during the Holocene, especially since 3 ka. The evolution of aeolian sediments is an important factor for the environmental change, and influence human activities and migration. However, many questions, e.g., when the aeolian sediments start to accumulate, what controls their initiation and how their evolution responds to climate change and human activities, still need further studies. In this study, we present a detailed Optically Stimulated Luminescence (OSL) chronology for both aeolian and underlying fluvial sediments from the Tiekui Desert in the eastern QB to discuss aeolian and fluvial processes, climatic changes, desert evolution, and human activities. Dating results show that: (1) underlying fluvial sediments were formed during similar to 23.9-12.1 ka, and the erosion caused by the fluvial process may provide an explanation for the absence of aeolian sediments during and before this period; (2) aeolian sediments accumulated from ca. 9-8 ka to modern times, with loess development from 9-8 ka to 1.6 ka and 1.4-0.7 ka, and dune sand accumulation at 1.6-1.4 ka and 0.7-0 ka. Through the comparison with the local and global palaeoclimatic records, we suggest that desert evolution in this region was sensitive to climatic changes induced by the Asian summer monsoon. Detailed local historical records of the past 2000 years suggest that desert evolution was also influenced by human activities. (C) 2014 Elsevier Ltd and INQUA. All rights reserved.
关键词Osl Dating Desert Evolution Palaeoenvironmental Change Human Activity Deglaciation And Holocene Qinghai-tibetan Plateau
WOS标题词Science & Technology ; Physical Sciences
关键词[WOS]NORTH-ATLANTIC CLIMATE ; CHINESE LOESS PLATEAU ; POSSIBLE FORCING MECHANISMS ; REGENERATIVE-DOSE PROTOCOL ; PALEOENVIRONMENTAL IMPLICATIONS ; PALEOCLIMATIC IMPLICATIONS ; OSL CHRONOLOGY ; GROWTH-CURVE ; LAKE AREA ; SAR PROTOCOL
收录类别SCI
语种英语
WOS研究方向Physical Geography ; Geology
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号WOS:000355674100004
引用统计
被引频次:11[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/363002/6142
专题青海盐湖研究所知识仓储
作者单位1.Linyi Univ, Coll Resources & Environm, Linyi 276000, Peoples R China
2.Qinghai Geol Survey Inst, Key Lab Geol Proc & Mineral Resources Northern Qi, Xining 810012, Peoples R China
3.Chinese Acad Sci, State Key Lab Cryospher Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
4.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Peoples R China
5.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810012, Peoples R China
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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GB/T 7714
Yu, LuPeng,Lai, ZhongPing,An, Ping,et al. Aeolian sediments evolution controlled by fluvial processes, climate change and human activities since LGM in the Qaidam Basin, Qinghai-Tibetan Plateau[J]. QUATERNARY INTERNATIONAL,2015,372:23-32.
APA Yu, LuPeng,Lai, ZhongPing,An, Ping,Pan, Tong,&Chang, QiuFang.(2015).Aeolian sediments evolution controlled by fluvial processes, climate change and human activities since LGM in the Qaidam Basin, Qinghai-Tibetan Plateau.QUATERNARY INTERNATIONAL,372,23-32.
MLA Yu, LuPeng,et al."Aeolian sediments evolution controlled by fluvial processes, climate change and human activities since LGM in the Qaidam Basin, Qinghai-Tibetan Plateau".QUATERNARY INTERNATIONAL 372(2015):23-32.
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