Climate fluctuation on a kiloyear scale during the Late Last Glacial in Mu Us Desert, China: evidence from Rb and Sr contents and ratios
Si, YJ (Si, Yuejun)[ 1 ]; Li, BS (Li, Baosheng)[ 2,1 ]; Zhang, DD (Zhang, David Dian)[ 3 ]; Wen, XH (Wen, Xiaohao)[ 1 ]; Wang, FN (Wang, Fengnian)[ 4 ]; Du, SH (Du, Shuhuan)[ 5 ]; Niu, DF (Niu, Dongfeng)[ 1 ]; Guo, YH (Guo, Yihua)[ 6 ]
2014-12-15
发表期刊ENVIRONMENTAL EARTH SCIENCES
卷号72期号:11页码:4521-4530
文章类型期刊论文
摘要

The MGS2 segment of the Milanggouwan stratigraphical section in China's Salawusu River Valley records 5.5 sedimentary cycles consisting of dune sands alternating with fluviolacustrine facies or/and palaeosols. The high Rb and Sr contents and low Rb/Sr ratios in the fluviolacustrine facies indicate the presence of a warm and humid climate, and vice versa for a dry and cold climate. Rb and Sr appeared to have 5.5 element cycles that are consistent with the sedimentation changes, and each cycle lasts about 2 ka on average. This study suggests that the observed cycles mainly resulted from variations in the strength of the East Asian winter and summer monsoons, and the MGS2 segment experienced six cold-dry winter monsoons and five warm-humid summer monsoons during the OIS2. In addition, the millennial-scale monsoonal climate fluctuations revealed by the element cycles corresponded well with the Dansgaard-Oeschger cycles recorded in the Greenland ice cores and Heinrich events in the North Atlantic marine sediments. Therefore, the monsoonal climate fluctuations revealed by the Rb and Sr in the MGS2 segment were likely triggered by global climate change.

关键词Mu Us Desert Milanggouwan Section Rband Sr Kiloyear-scale Climate Changes Late Last Glacial
DOI10.1007/s12665-014-3352-0
收录类别SCI ; EI
语种英语
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文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/9779
专题黄土与第四纪地质国家重点实验室(2010~)
通讯作者Li, BS (Li, Baosheng)[ 2,1 ]
作者单位1.School of Geographical Science, South ChinaNormal University, Guangzhou 510631, China;
2.State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment, Chinese Academy of Sciences,Xi’an 710061, China;
3.Department of Geography, University of Hong Kong,Pokfulam Road, Hong Kong, China;
4.Tourism Department, Huizhou University,Huizhou 516007, China;
5.Key Laboratory of Marginal Sea Geology, South ChinaSea Institute of Oceanology, Chinese Academy of Sciences,Guangzhou 510630, China;
6.Guangzhou Institute of Geography, Guangzhou 510070, China
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GB/T 7714
Si, YJ ,Li, BS ,Zhang, DD ,et al. Climate fluctuation on a kiloyear scale during the Late Last Glacial in Mu Us Desert, China: evidence from Rb and Sr contents and ratios[J]. ENVIRONMENTAL EARTH SCIENCES,2014,72(11):4521-4530.
APA Si, YJ .,Li, BS .,Zhang, DD .,Wen, XH .,Wang, FN .,...&Guo, YH .(2014).Climate fluctuation on a kiloyear scale during the Late Last Glacial in Mu Us Desert, China: evidence from Rb and Sr contents and ratios.ENVIRONMENTAL EARTH SCIENCES,72(11),4521-4530.
MLA Si, YJ ,et al."Climate fluctuation on a kiloyear scale during the Late Last Glacial in Mu Us Desert, China: evidence from Rb and Sr contents and ratios".ENVIRONMENTAL EARTH SCIENCES 72.11(2014):4521-4530.
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