Provenance of the upper Miocene-Pliocene Red Clay deposits of the Chinese loess plateau
Nie, JS (Nie, Junsheng)[ 1,2,3 ]; Peng, WB (Peng, Wenbin)[ 1 ]; Moller, A (Moeller, Andreas)[ 3 ]; Song, YG (Song, Yougui)[ 2 ]; Stockli, DF (Stockli, Daniel F.)[ 4 ]; Stevens, T (Stevens, Thomas)[ 5 ]; Horton, BK (Horton, Brian K.)[ 6,7 ]; Liu, SP (Liu, Shanpin)[ 1 ]; Bird, A (Bird, Anna)[ 8 ]; Oalmann, J (Oalmann, Jeffrey)[ 3 ]; Gong, HJ (Gong, Hujun)[ 9 ]; Fang, XM (Fang, Xiaomin)[ 10 ]
2014-12-01
发表期刊EARTH AND PLANETARY SCIENCE LETTERS
卷号407页码:35-47
文章类型期刊论文
摘要

A clear understanding of the provenance of late Cenozoic Chinese loess and the underlying Red Clay deposits will shed light on the history and mechanisms of Asian aridification. Although much progress has been made in understanding the source of Quaternary loess on the Chinese Loess Plateau (CLP), the provenance of the underlying upper Miocene-Pliocene Red Clay sequence is largely unknown. Here we present the first provenance history of the Red Clay sequence based on zircon U-Pb ages from the central CLP. Visual and statistical analyses of the U-Pb age populations and comparison with results from potential source regions reveals that (1) the lowermost Red Clay of the late Miocene (depositional age of ~8 Ma) is likely sourced from the nearby Liupan Mountains and the Qaidam Basin; (2) the middle Red Clay (5.5-4 Ma) of the early-mid Pliocene is sourced mainly from the Taklamakan desert, transported via lower-level westerly winds; (3) the upper Red Clay of the late Pliocene (~3 Ma) is sourced from mixed areas, although western source materials from middle-northern Tibetan plateau (including Qaidam Desert sediments and materials eroded from the Qilian Mountains) sediments appear to dominate; and (4) the Quaternary loess is also sourced from mixed source regions, albeit with dominant northern CLP proximal desert sediments transported via winter monsoon winds, which in turn may be transported from mountain source regions of the northeastern Tibet and Gobi Altai via major river systems. This long term shift in sources suggests a progressive eastward aridification during the Pliocene in Asia with the specific timing of provenance shifts synchronous with large-scale climatic transitions and Tibetan uplift, demonstrating that Asian desertification is controlled by both factors.

关键词Provenance Red Clay Loess Pliocene U–pb Geochronology Zircon
DOI10.1016/j.epsl.2014.09.026
收录类别SCI ; EI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9766
专题黄土与第四纪地质国家重点实验室(2010~)
通讯作者Nie, JS (Nie, Junsheng)[ 1,2,3 ]
作者单位1.MOE Key Laboratory of Western China’s Environmental Systems, Collaborative Innovation Centre for Arid Environments and Climate Change, LanzhouUniversity, Lanzhou 73000, China;
2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, P.O. Box 17, 710075, China;
3.Department of Geology, University of Kansas, 1475 Jayhawk Boulevard, Lawrence, KS 66045, USA;
4.Department of Geological Sciences, Jackson School of Geosciences, University of Texas, Austin, TX 78712, USA;
5.Department of Earth Sciences, Villavägan 16, Uppsala University, 75236 Uppsala, Sweden;
6.Department of Geological Sciences and Institute for Geophysics, Jackson School of Geosciences, University of Texas, Austin, TX 78712, USA;
7.Department of Geography, Environment and Earth Sciences, University of Hull, Cottingham Road, Hull, HU6 7RX, UK;
8.State Key Lab of Continental Dynamics, Department of Geology, Northwest University, Xian 710069, China;
9.Key Laboratory of Continental Collision and Plateau Uplift, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China
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Nie, JS ,Peng, WB ,Moller, A ,et al. Provenance of the upper Miocene-Pliocene Red Clay deposits of the Chinese loess plateau[J]. EARTH AND PLANETARY SCIENCE LETTERS,2014,407:35-47.
APA Nie, JS .,Peng, WB .,Moller, A .,Song, YG .,Stockli, DF .,...&Fang, XM .(2014).Provenance of the upper Miocene-Pliocene Red Clay deposits of the Chinese loess plateau.EARTH AND PLANETARY SCIENCE LETTERS,407,35-47.
MLA Nie, JS ,et al."Provenance of the upper Miocene-Pliocene Red Clay deposits of the Chinese loess plateau".EARTH AND PLANETARY SCIENCE LETTERS 407(2014):35-47.
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