干旱区生态环境知识资源中心(Arid): Variations in the aeolian sequence Zr/Rb ratios in the Mu Us Desert during the Holocene and their implications for the East Asian monsoon

Arid

DOI	10.1016/j.aeolia.2021.100753
	Variations in the aeolian sequence Zr/Rb ratios in the Mu Us Desert during the Holocene and their implications for the East Asian monsoon
	Wang, Fengnian; Si, Yuejun; Li, Baosheng; Niu, Dongfeng; Li, Zhiwen; Wen, Xiaohao; Yang, Zhiying
通讯作者	Si, YJ
来源期刊	AEOLIAN RESEARCH
ISSN	1875-9637
EISSN	2212-1684
出版年	2022
卷号	54
英文摘要	Situated in the Salawusu River Valley in the southeast of China's Mu Us Desert, the Milanggouwan strati graphical section MGS1 has recorded 11 sedimentary cycles, consisting of alternations between dune sands and fluvial or lacustrine facies. This paper analyzed the distribution of grain-size and Zr/Rb ratios in the MGS1, which is located in the arid and semi-arid areas of North China, and grain-size and Zr/Rb ratios are good proxy indicators of East Asian winter and summer monsoons. Results determined the age of the top of MGS1 to be 11.6 +/- 0.9 ka BP, and Mz and sigma values in the dune sands to be lower than those in the corresponding fluviolacustrine or paleosols. Furthermore, Zr/Rb also exhibited low values in the dune sands and a relatively high content in the fluviolacustrine and paleosols. Both grain-size and Zr/Rb ratios displayed 11 cycles similar to the sedimentation changes, while the Zr/Rb ratios were observed to correlate with Mz and sigma. The results suggested that the cycles resulted from the fluctuations between cold-dry and warm-humid climates, and the MGS1 segment experienced at least 11 cold-dry and warm-humid climatic fluctuations. This type of high-frequency climatic fluctuation on a millennial time-scale is related to variations in the strength of the East Asian winter and summer monsoons during the Holocene Period. The dominant periods of the winter monsoon corresponded to the cold events of 8200, 5000, 4000, 2700 and 1400a BP reported in the North Atlantic and other regions in China.
英文关键词	Mu Us Desert Climatic indices Zr/Rb ratios Grain size East Asian monsoon
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000798733800005
WOS关键词	SALAWUSU RIVER VALLEY ; LATE PLEISTOCENE ; CLIMATE CHANGES ; LOESS PLATEAU ; CENTRAL CHINA ; MILLENNIAL-SCALE ; GRAIN-SIZE ; RECORD ; ELEMENTS ; SECTION
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391560
推荐引用方式 GB/T 7714	Wang, Fengnian,Si, Yuejun,Li, Baosheng,et al. Variations in the aeolian sequence Zr/Rb ratios in the Mu Us Desert during the Holocene and their implications for the East Asian monsoon[J],2022,54.
APA	Wang, Fengnian.,Si, Yuejun.,Li, Baosheng.,Niu, Dongfeng.,Li, Zhiwen.,...&Yang, Zhiying.(2022).Variations in the aeolian sequence Zr/Rb ratios in the Mu Us Desert during the Holocene and their implications for the East Asian monsoon.AEOLIAN RESEARCH,54.
MLA	Wang, Fengnian,et al."Variations in the aeolian sequence Zr/Rb ratios in the Mu Us Desert during the Holocene and their implications for the East Asian monsoon".AEOLIAN RESEARCH 54(2022).