Abrupt environmental changes during the last 30 kyr in the southern margin of the Taklimakan Desert, a record from an oasis

doi:10.1016/j.quascirev.2018.09.036

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	Abrupt environmental changes during the last 30 kyr in the southern margin of the Taklimakan Desert, a record from an oasis
	Shu, Peixian 1,2,3; Li, Baosheng 1,4; Wang, Hong 1,5; Cheng, Peng 1; An, Zhisheng 1; Zhou, Weijian 1; Zhang, David Dian 6,7; Dodson, John 1,8; Niu, Dongfeng 9; Si, Yuejun 10; Wen, Xiaohao 4; Qiu, Yahui 11
通讯作者	Li, Baosheng(libsh@scnu.edu)
	2018-12-01
发表期刊	QUATERNARY SCIENCE REVIEWS
ISSN	0277-3791
卷号	201 页码:29-43
摘要	The Taklimakan Desert, the largest sand sea in China, is one of the most important sources of dust in the world. Millennial-scale abrupt climate changes during the last glacial and Holocene periods occurred in the region. However, these records remain poorly understood because dating eolian, lacustrine, and fluvial sediments and establishing reliable environmental proxies are challenging in this setting. Here, we use accelerator mass spectrometry (AMS), grain size, and Rb/Sr ratios of bulk sediments from an oasis sequence in the Taklimakan Desert. While some C-14 dates results are not in the stratigraphic order, most of them can be grouped in four age groups during the Last Glacial. We infer that reversals of radiocarbon age based on total organic carbon (TOC) was controlled by organic carbon (OC) input from the regional carbon pool. We selected C-14 dates from the four age groups, to develop an age-depth model for a basin-wide chronology. Peaks in a cumulative probability curve of radiocarbon dates, with high Rb/Sr ratios and fine mean grain sizes, reveal four wet periods during the Last Glaciation, and one wetter/warmer period during the Holocene. The regional moisture variability appears to be influenced by the Asian summer monsoon and mid-latitude Westerlies. The Holocene wetter/warmer period facilitated human occupation of the oasis. (C) 2018 Elsevier Ltd. All rights reserved.
关键词	Oasis Radiocarbon dating Abrupt environmental change Last glaciation Holocene Taklimakan desert
DOI	10.1016/j.quascirev.2018.09.036
关键词[WOS]	LATE QUATERNARY LOESS ; TARIM BASIN ; WESTERN CHINA ; KERIYA RIVER ; TAKLAMAKAN DESERT ; CENTRAL-ASIA ; LOP NUR ; HOLOCENE HISTORY ; LAKE-SEDIMENTS ; DUST EMISSION
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41290250] ; National Basic Research Program of China[2013CB955903] ; External Cooperation Program of BIC, Chinese Academy of Sciences[132B61KYSB20130003] ; State Key Laboratory of Loess and Quaternary Geology[KLLQG1635]
WOS研究方向	Physical Geography ; Geology
项目资助者	National Natural Science Foundation of China ; National Basic Research Program of China ; External Cooperation Program of BIC, Chinese Academy of Sciences ; State Key Laboratory of Loess and Quaternary Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000452934700003
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：13[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14532
专题	加速器质谱中心
通讯作者	Li, Baosheng
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Illinois, Dept Anthropol, Urbana, IL 61801 USA 4.South China Normal Univ, Sch Geog, Guangzhou 510631, Guangdong, Peoples R China 5.Univ Illinois, Illinois State Geol Survey, Prairie Res Inst, Champaign, IL USA 6.Univ Hong Kong, Dept Geog, Hong Kong, Peoples R China 7.Guangzhou Univ, Sch Geog, Guangzhou 510631, Guangdong, Peoples R China 8.Univ Wollongong, Sch Earth Atmospher & Life Sci, Wollongong, NSW 2522, Australia 9.Lingnan Normal Univ, Sch Phys Sci & Technol, Zhanjiang 524048, Peoples R China 10.Guangxi Teachers Educ Univ, Sch Geog & Planning, Nanning 530001, Peoples R China 11.Northwest Univ, Dept Geol, Xian 710069, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Shu, Peixian,Li, Baosheng,Wang, Hong,et al. Abrupt environmental changes during the last 30 kyr in the southern margin of the Taklimakan Desert, a record from an oasis[J]. QUATERNARY SCIENCE REVIEWS,2018,201:29-43.
APA	Shu, Peixian.,Li, Baosheng.,Wang, Hong.,Cheng, Peng.,An, Zhisheng.,...&Qiu, Yahui.(2018).Abrupt environmental changes during the last 30 kyr in the southern margin of the Taklimakan Desert, a record from an oasis.QUATERNARY SCIENCE REVIEWS,201,29-43.
MLA	Shu, Peixian,et al."Abrupt environmental changes during the last 30 kyr in the southern margin of the Taklimakan Desert, a record from an oasis".QUATERNARY SCIENCE REVIEWS 201(2018):29-43.