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	Geochemical characteristics of Holocene aeolian deposits and their environmental significance in the Mu Us Desert, northern China
	Liu, Bing1; Jin, He-Ling1; Sun, Liang-Ying1; Sun, Zhong1; Niu, Qing-He1,2; Zhang, Cai-Xia1
刊名	GEOLOGICAL JOURNAL
	2016-05-01
卷号	51期号:3页码:325-337
关键词	Holocene Mu Us Desert China aeolian deposits geochemical elements weathering climatic significance dry events
ISSN号	0072-1050
DOI	10.1002/gj.2630
通讯作者	Jin, He-Ling(jinhlster@gmail.com)
英文摘要	This paper addresses the surface and Holocene aeolian deposits in the southeastern Mu Us Desert, N. China, systematically analysing the evolution of the geochemical characteristics of aeolian sand-palaeosol sequences and their environmental significance. Our results indicate that the geochemical components of the Holocene aeolian deposits and surface deposits had the similar material sources, sediment transport and deposition processes in the study region, which were dominated by SiO2, Al2O3, and Na2O. In the weathering process of the Jinjie (JJ) profile, the Na, K, and Si presented the slight leaching and migration in general, while the other elements were relatively accumulated. The Holocene aeolian deposits and surface deposits incurred weaker geochemical weathering under cold and dry conditions and were only weakly leached, which implies a relatively arid environment in the Holocene epoch and the modern era. The weathering degree was controlled by the regional temperature and precipitation, and was probably more sensitive to the precipitation changes. In the sedimentary profile, the geochemical parameters and migration of elements demonstrated that there have been several alternating warm-wet and cold-dry intervals in the Mu Us Desert in the Holocene epoch; there were relatively warm and wet conditions prior to 4.6ka, and it has been cold and dry since then. Six millennial-scale dry events were recorded during the Holocene, which were not only accordant with the history of palaeoclimatic changes in the different latitudes and archives of the Northern Hemisphere, but also correspond to the millennial-scale variation of cosmic radiation and solar activity during that period. Copyright (c) 2015 John Wiley & Sons, Ltd.
收录类别	SCI
WOS关键词	EAST-ASIAN MONSOON ; INNER-MONGOLIA ; SAND ; VARIABILITY ; INTENSITY ; SEQUENCES ; CLIMATES ; LAKE
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
语种	英语
出版者	WILEY-BLACKWELL
WOS记录号	WOS:000375086800001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557314
专题	寒区旱区环境与工程研究所
通讯作者	Jin, He-Ling
作者单位	1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Dunhuang Gobi & Desert Res Stn, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Liu, Bing,Jin, He-Ling,Sun, Liang-Ying,et al. Geochemical characteristics of Holocene aeolian deposits and their environmental significance in the Mu Us Desert, northern China[J]. GEOLOGICAL JOURNAL,2016,51(3):325-337.
APA	Liu, Bing,Jin, He-Ling,Sun, Liang-Ying,Sun, Zhong,Niu, Qing-He,&Zhang, Cai-Xia.(2016).Geochemical characteristics of Holocene aeolian deposits and their environmental significance in the Mu Us Desert, northern China.GEOLOGICAL JOURNAL,51(3),325-337.
MLA	Liu, Bing,et al."Geochemical characteristics of Holocene aeolian deposits and their environmental significance in the Mu Us Desert, northern China".GEOLOGICAL JOURNAL 51.3(2016):325-337.

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