Holocene moisture change revealed by the Rb/Sr ratio of aeolian deposits in the southeastern Mu Us Desert, China (SCI)

CORC > 寒区旱区环境与工程研究所 > 中科院寒区旱区环境与工程研究所（未分类） > 期刊论文

	Holocene moisture change revealed by the Rb/Sr ratio of aeolian deposits in the southeastern Mu Us Desert, China (SCI)
	Liu B. ; Jin H. L. ; Sun L. Y. ; Sun Z. ; Niu Q. H. ; Xie S. B. ; Li G. H.
刊名	Aeolian Research
	2014
卷号	13 期号:109-119
英文摘要	Systematic analysis of the Rb and Sr contents and Rb/Sr ratios in different lithological units of the palaeosol-aeolian sequence in the southeastern Mu Us Desert revealed that the Rb/Sr ratio is an accurate proxy for past East Asian summer monsoonal strength and moisture change. A lower Sr content and a higher Rb/Sr ratio, chemical index of alteration (CIA), and clay and organic matter (OM) content in the palaeosol are coincident with stronger Asian summer monsoons and increased precipitation, whereas a higher Sr content and a lower Rb/Sr ratio, CIA, and clay and OM content correspond to a dry climate with weaker summer monsoonal strength. Based on these results, the history of Holocene moisture changes was reconstructed as follows: the moisture was lower before 7.5 ka and approached an optimal climate between 7.5 ka and 4.6 ka, afterwards, the climate tended to be dry. Additionally, six millennial-scale dry events were recorded at the times of similar to 7.5 ka, 7.0-6.8 ka, 6.6-5.7 ka, 4.6-4.1 ka, 3.7-3.5 ka, and 3.3-2.5 ka, which were very accordant with cold phases evidenced by ice cores and deep-sea deposits in the low and high latitudes of the Northern Hemisphere. These were also coincident with weaker Asian summer monsoonal intervals revealed by stalagmites within the dating uncertainties, probably implying a prominent synchronism of Holocene millennial-scale climate changes in the Mu Us Desert and global climate changes. (C) 2014 Elsevier B.V. All rights reserved.
收录类别	SCI
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.casnw.net/handle/362004/24825]
专题	寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文
推荐引用方式 GB/T 7714	Liu B.,Jin H. L.,Sun L. Y.,et al. Holocene moisture change revealed by the Rb/Sr ratio of aeolian deposits in the southeastern Mu Us Desert, China (SCI)[J]. Aeolian Research,2014,13(109-119).
APA	Liu B..,Jin H. L..,Sun L. Y..,Sun Z..,Niu Q. H..,...&Li G. H..(2014).Holocene moisture change revealed by the Rb/Sr ratio of aeolian deposits in the southeastern Mu Us Desert, China (SCI).Aeolian Research,13(109-119).
MLA	Liu B.,et al."Holocene moisture change revealed by the Rb/Sr ratio of aeolian deposits in the southeastern Mu Us Desert, China (SCI)".Aeolian Research 13.109-119(2014).