Sedimentological and Geochemical Composition of Aeolian Sediments in the Taklamakan Desert: Implications for Provenance and Sediment Supply Mechanisms
文献类型：期刊论文
| 作者 | Jiang, Qida1,3,4; Yang, Xiaoping2 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
 |
| 出版日期 | 2019-05-01 |
| 卷号 | 124期号:5页码:1217-1237 |
| 关键词 | grain size sediment availability REE major element Tarim Basin geomorphology |
| ISSN号 | 2169-9003 |
| DOI | 10.1029/2018JF004990 |
| 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. |
| WOS关键词 | GRAIN-SIZE ; TARIM BASIN ; TAKLIMAKAN DESERT ; CLIMATE-CHANGE ; RIVER SEDIMENTS ; CHINESE DESERTS ; WESTERN CHINA ; DUNE FIELDS ; DUST ; TRANSPORT |
| 资助项目 | National Natural Science Foundation of China[41430532] ; National Natural Science Foundation of China[41672182] ; State Scientific Survey Project of China[2017FY101001] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000472611000009 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Scientific Survey Project of China ; State Scientific Survey Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Scientific Survey Project of China ; State Scientific Survey Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Scientific Survey Project of China ; State Scientific Survey Project of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; State Scientific Survey Project of China ; State Scientific Survey Project of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/92511]  |
| 专题 | 地质与地球物理研究所_中国科学院新生代地质与环境重点实验室 |
| 通讯作者 | Yang, Xiaoping |
| 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]. JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE,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. |
入库方式： OAI收割
来源：地质与地球物理研究所
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