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Geochronology and Mineral Composition of the Pleistocene Sediments in Xitaijinair Salt Lake Region, Qaidam Basin: Preliminary Results
Zeng, Fangming1,2; Xiang, Shuyuan3
2017-08-01
Source PublicationJOURNAL OF EARTH SCIENCE
Volume28Issue:4Pages:622-627
SubtypeArticle
AbstractXitaijinair (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.
KeywordQaidam Basin Xitaijinair Salt Lake Geochronology Pleistocene
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordQINGHAI-TIBETAN PLATEAU ; SHELL BAR ; RECORD ; AGE ; BP
Indexed BySCI
Language英语
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000406391000006
Citation statistics
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6240
Collection青海盐湖研究所知识仓储
盐湖地质与环境实验室
Affiliation1.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
Recommended Citation
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.
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