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	Geochemical weathering of aeolian sand and its palaeoclimatic implications in the Mu Us Desert, northern China, since the Late Holocene
	Liu Bing1,2,3; Jin Heling1,2; Sun Zhong2; Zhao Shuang3
刊名	JOURNAL OF ARID LAND
	2016-10-01
卷号	8期号:5页码:647-659
关键词	climatic change geochemical component weathering degree Late Holocene Mu Us Desert
ISSN号	1674-6767
DOI	10.1007/s40333-016-0014-y
通讯作者	Jin Heling(jinhl@lzb.ac.cn)
英文摘要	In the semi-arid and arid regions of northern China, geochemical behavior of the aeolian deposit is closely related to climatic and environmental changes, which was used to reconstruct the past history of environmental evolution and possibly forcing mechanisms. However, the related result was still scarce due to the lack of detailed geochemical analysis results in the desert sediments. In the present study, we systematically analyzed the geochemical components and parameters of the paleo-aeolian sand dune and modern mobile sand deposits in the Mu Us Desert and discuss the climatic variation inferred from the paleo-aeolian sand dune during the past 4.2 ka BP. The results indicated that (1) geochemical composition of the sandy deposits were dominated by SiO2, Al2O3 and Na2O and the deposits probably originated from the widespread upper continental crust (UCC) and were formed by long-term weathering, transport and re-deposition; (2) these sandy deposits were subjected to weaker weathering or uneven weathering under cold and dry conditions, and had highly similar material sources and degrees of weathering and leaching in general; and (3) the direct OSL (Optically Stimulated Luminescence) dating ages and geochemical parameters from the palaeosol-aeolian sand dune indicated that the regional climate change experienced several typically cold and warm intervals. These intervals are 4.2, 2.8 ka BP and Little Ice Age and Medieval Warm Period, which probably attributed to periodic variations of the Asian summer monsoonal strength and cold events of the northern Atlantic Ocean in low and high latitudes of the Northern Hemisphere. Our results suggest that the development of the sand dune in the Mu Us Desert provided a suitable archive for understanding the past local climatic change, which is linked to the global climatic change.
收录类别	SCI
WOS关键词	CLIMATIC-CHANGE ; ATLANTIC CLIMATE ; SUMMER MONSOON ; INNER-MONGOLIA ; LAKE ; INTENSITY ; SEDIMENT ; DEPOSITS ; PROVINCE ; PLATEAU
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000378931000001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557229
专题	寒区旱区环境与工程研究所
通讯作者	Jin Heling
作者单位	1.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Key Lab Desert & Desertificat, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 3.Lanzhou Univ, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Liu Bing,Jin Heling,Sun Zhong,et al. Geochemical weathering of aeolian sand and its palaeoclimatic implications in the Mu Us Desert, northern China, since the Late Holocene[J]. JOURNAL OF ARID LAND,2016,8(5):647-659.
APA	Liu Bing,Jin Heling,Sun Zhong,&Zhao Shuang.(2016).Geochemical weathering of aeolian sand and its palaeoclimatic implications in the Mu Us Desert, northern China, since the Late Holocene.JOURNAL OF ARID LAND,8(5),647-659.
MLA	Liu Bing,et al."Geochemical weathering of aeolian sand and its palaeoclimatic implications in the Mu Us Desert, northern China, since the Late Holocene".JOURNAL OF ARID LAND 8.5(2016):647-659.

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