干旱区生态环境知识资源中心(Arid): Sedimentological and Geochemical Composition of Aeolian Sediments in the Taklamakan Desert: Implications for Provenance and Sediment Supply Mechanisms

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DOI	10.1029/2018JF004990
	Sedimentological and Geochemical Composition of Aeolian Sediments in the Taklamakan Desert: Implications for Provenance and Sediment Supply Mechanisms
	Jiang, Qida 1,3,4; Yang, Xiaoping 2
通讯作者	Yang, Xiaoping
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
ISSN	2169-9003
EISSN	2169-9011
出版年	2019
卷号	124 期号:5 页码:1217-1237
英文摘要	Sediment provenance is a key issue in understanding the aeolian system of the Taklamakan Desert, an important source of global dust and the largest sand sea in the midlatitudes worldwide. In provenance research, it may be a mistake to assume that the sand and dust fractions of desert sediments have the same source, which has been the case in previous studies of the Taklamakan Desert. The aims of the present study were to identify the provenance of the sand and dust fractions of the sediments of the Taklamakan Desert, to determine the contemporary sediment supply mechanisms of the desert, and to assess the relative importance of silt-producing mechanisms for the desert dust. We analyzed the grain size of desert sediment samples and measured the content of major, trace, and rare earth elements within the bulk samples, sand fractions (>63 m), and dust fractions (<63 m). Our grain size and geochemical data sets suggest that the Kunlun Mountains are the main source of the sand fraction, whereas both the Kunlun and Tian Shan Mountains are the main sources of the dust fraction. Our interpretation is supported by the elevation gradient within the Taklamakan Desert and by wind data.
英文关键词	grain size sediment availability REE major element Tarim Basin geomorphology
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000472611000009
WOS关键词	GRAIN-SIZE ; TARIM BASIN ; TAKLIMAKAN DESERT ; CLIMATE-CHANGE ; RIVER SEDIMENTS ; CHINESE DESERTS ; WESTERN CHINA ; DUNE FIELDS ; DUST ; TRANSPORT
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
来源机构	中国科学院地质与地球物理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217089
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China; 2.Zhejiang Univ, Sch Earth Sci, Dept Geog, Hangzhou, Zhejiang, Peoples R China; 3.Univ Chinese Acad Sci, Beijing, Peoples R China; 4.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Qida,Yang, Xiaoping. Sedimentological and Geochemical Composition of Aeolian Sediments in the Taklamakan Desert: Implications for Provenance and Sediment Supply Mechanisms[J]. 中国科学院地质与地球物理研究所,2019,124(5):1217-1237.
APA	Jiang, Qida,&Yang, Xiaoping.(2019).Sedimentological and Geochemical Composition of Aeolian Sediments in the Taklamakan Desert: Implications for Provenance and Sediment Supply Mechanisms.JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE,124(5),1217-1237.
MLA	Jiang, Qida,et al."Sedimentological and Geochemical Composition of Aeolian Sediments in the Taklamakan Desert: Implications for Provenance and Sediment Supply Mechanisms".JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE 124.5(2019):1217-1237.