Quartz OSL dating of sand dunes of Late Pleistocene in the Mu Us Desert in northern China

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	Quartz OSL dating of sand dunes of Late Pleistocene in the Mu Us Desert in northern China
	He, Zhong 1,2,3; Zhou, Jie 2; Lai, ZhongPing1 ; Yang, LinHai 2,3; Liang, JianMin 2,3; Long, Hao 1,3; Ou, XianJiao 4
	2010-04-01
发表期刊	QUATERNARY GEOCHRONOLOGY
卷号	5 期号:2-3 页码:102-106
关键词	Mu Us Desert Late Pleistocene Luminescence Dating Sand Dune Activity
摘要	The Mu Us Desert, located in the northwestern fringe of the East Asian monsoon region, is sensitive to climate variability. The desert is characterized by mobile, semi-fixed and fixed sand dunes. Alternating units of dune sands and sandy palaeosols in the Mu Us Desert imply multiple episodes of dune building and stabilization, in response to the ebb and flow of the East Asian monsoon. Desert evolution and climatic change of high-resolution in the Mu Us Desert are still poorly understood due to limited numerical dating results. In the present study, 19 samples collected from five sand dune sections along a northwest-southeast transect in the Mu Us Desert were dated using quartz optically stimulated luminescence (OSL) and single aliquot regenerative-dose (SAR) protocol. Internal checks of the OSL dating indicate that the SAR protocol is appropriate for equivalent dose (De) determination for the samples under study. Combined with the lithologic stratigraphy and the luminescence chronology, the sand dune development in the Mu Us Desert during the Late Pleistocene is discussed. Our results indicate that the sand was mobilized approximately at 91 ka, 71 ka, 48-22 ka, 5 ka, 1 ka, and 0.44 ka; the sand was fixed approximately at 65 ka and Holocene Optimum period in the interior Mu Us Desert. The Mu Us Desert formed at least before 144 ka, and has shown increasing aridity in the Late Pleistocene. (C) 2009 Elsevier B.V. All rights reserved.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/5957
专题	青海盐湖研究所知识仓储
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Luminescence Dating Grp, Xining 810008, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 4.Jiaying Univ, Sch Geog & Tourism, Meizhou 514015, Peoples R China
推荐引用方式 GB/T 7714	He, Zhong,Zhou, Jie,Lai, ZhongPing,et al. Quartz OSL dating of sand dunes of Late Pleistocene in the Mu Us Desert in northern China[J]. QUATERNARY GEOCHRONOLOGY,2010,5(2-3):102-106.
APA	He, Zhong.,Zhou, Jie.,Lai, ZhongPing.,Yang, LinHai.,Liang, JianMin.,...&Ou, XianJiao.(2010).Quartz OSL dating of sand dunes of Late Pleistocene in the Mu Us Desert in northern China.QUATERNARY GEOCHRONOLOGY,5(2-3),102-106.
MLA	He, Zhong,et al."Quartz OSL dating of sand dunes of Late Pleistocene in the Mu Us Desert in northern China".QUATERNARY GEOCHRONOLOGY 5.2-3(2010):102-106.