干旱区生态环境知识资源中心(Arid): Palaeodunes intercalated in loess strata from the western Chinese Loess Plateau: Timing and palaeoclimatic implications

Arid

DOI	10.1016/j.quaint.2010.12.030
	Palaeodunes intercalated in loess strata from the western Chinese Loess Plateau: Timing and palaeoclimatic implications
	Long, Hao 1,2,3; Lai, ZhongPing 1; Fuchs, Markus 2; Zhang, JingRan 1,3; Yang, Linhai 1
通讯作者	Lai, ZhongPing
来源期刊	QUATERNARY INTERNATIONAL
ISSN	1040-6182
出版年	2012
卷号	263 页码:37-45
英文摘要	Dune systems represent important palaeoenvironmental archives and therefore provide valuable information on past climate conditions of dryland regions. This study reports on several palaeodunes (thickness ca. 10-20 m) intercalated in thick loess accumulations, located in the Lanzhou area of the western Chinese Loess Plateau. The intercalated dune sands are well-sorted and have a typical aeolian dune structure, with distinct cross-bedded sand layers. The chronology for these palaeodunes and the related loess sediments was established by quartz optically stimulated luminescence (OSL) dating of 19 samples. The dating results indicate that sand dune accumulation occurred at ca. 35-25 ka, which implies a period of increased aridity during dune formation. This interpretation is in contrast to previously retrieved data from lake archives of the nearby deserts (e.g. Tengger and Badain Jaran desert), indicating a humid episode during marine isotope stage 3 (MIS 3). The previously proposed humid MIS 3a may not be universal over all of northwest China. (C) 2011 Elsevier Ltd and INQUA. All rights reserved.
类型	Article
语种	英语
国家	Peoples R China ; Germany
收录类别	SCI-E
WOS记录号	WOS:000305434800005
WOS关键词	HOLOCENE DUNE ACTIVITY ; NEBRASKA SAND HILLS ; TIBETAN PLATEAU ; QINGHAI LAKE ; NORTHWESTERN CHINA ; NORTHEASTERN CHINA ; TENGGER DESERT ; GROWTH-CURVE ; NORTH CHINA ; LUMINESCENCE
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/174687
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Resources & Chem, Luminescence Dating Grp, Xining 810008, Qinghai, Peoples R China; 2.Univ Bayreuth, Inst Geog, D-95440 Bayreuth, Germany; 3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Long, Hao,Lai, ZhongPing,Fuchs, Markus,et al. Palaeodunes intercalated in loess strata from the western Chinese Loess Plateau: Timing and palaeoclimatic implications[J],2012,263:37-45.
APA	Long, Hao,Lai, ZhongPing,Fuchs, Markus,Zhang, JingRan,&Yang, Linhai.(2012).Palaeodunes intercalated in loess strata from the western Chinese Loess Plateau: Timing and palaeoclimatic implications.QUATERNARY INTERNATIONAL,263,37-45.
MLA	Long, Hao,et al."Palaeodunes intercalated in loess strata from the western Chinese Loess Plateau: Timing and palaeoclimatic implications".QUATERNARY INTERNATIONAL 263(2012):37-45.