Geochronology and Mineral Composition of the Pleistocene Sediments in Xitaijinair Salt Lake Region, Qaidam Basin: Preliminary Results

ISL OpenIR > 青海盐湖研究所知识仓储

	Geochronology and Mineral Composition of the Pleistocene Sediments in Xitaijinair Salt Lake Region, Qaidam Basin: Preliminary Results
	Zeng, Fangming1,2 ; Xiang, Shuyuan 3
	2017-08-01
发表期刊	JOURNAL OF EARTH SCIENCE
卷号	28 期号:4 页码:622-627
关键词	Qaidam Basin Xitaijinair Salt Lake Geochronology Pleistocene
摘要	Xitaijinair (XT) Salt Lake, located in the western Qaidam Basin, is significant for reconstructing the evolution of inland drying climate. However, the chronological and mineralogical records from this lake are rare. This study investigated the chronology (accelerator mass spectrometry (AMS) C-14 ages and optically stimulated luminescence (OSL) ages) and mineral compositions of sediment in the 240-cm-deep XT Section of the Xitaijinair Salt Lake region. The conclusions are drawn as follows: (1) Nine AMS C-14 ages, ranging between 33 and 40 cal ka BP, are obviously younger than the two OSL ages (57.9 and 69.1 ka). The C-14 ages probably reflect contamination with modern carbon. (2) Both C-14 and OSL ages indicate that the surface of Xitaijinair Salt Lake region has suffered erosion. (3) The sediments of XT Section are composed of silicates (quartz, muscovite, clinochlore and albite), carbonates (calcite, dolomite, and ankertie), halite and gypsum.
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/363002/6240
专题	青海盐湖研究所知识仓储盐湖地质与环境实验室
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Comprehens & Highly Efficient Utilizat Sa, Xining 810008, Qinghai, Peoples R China 2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Lake Geol & Environm Qinghai Prov, Xining 810008, Qinghai, Peoples R China 3.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Zeng, Fangming,Xiang, Shuyuan. Geochronology and Mineral Composition of the Pleistocene Sediments in Xitaijinair Salt Lake Region, Qaidam Basin: Preliminary Results[J]. JOURNAL OF EARTH SCIENCE,2017,28(4):622-627.
APA	Zeng, Fangming,&Xiang, Shuyuan.(2017).Geochronology and Mineral Composition of the Pleistocene Sediments in Xitaijinair Salt Lake Region, Qaidam Basin: Preliminary Results.JOURNAL OF EARTH SCIENCE,28(4),622-627.
MLA	Zeng, Fangming,et al."Geochronology and Mineral Composition of the Pleistocene Sediments in Xitaijinair Salt Lake Region, Qaidam Basin: Preliminary Results".JOURNAL OF EARTH SCIENCE 28.4(2017):622-627.