Lithospheric mantle underneath the Tibetan Plateau does not escape southeastward
文献类型：期刊论文
| 作者 | Nie, Shitan1,2; Tian, Xiaobo1,3; Li, Jiangtao4; Tan, Ping5 |
| 刊名 | JOURNAL OF ASIAN EARTH SCIENCES
 |
| 出版日期 | 2021-02-01 |
| 卷号 | 206页码:10 |
| 关键词 | Eastern and southeastern Tibetan Plateau Pn velocity Uppermost mantle Lithospheric mantle Eastward escape |
| ISSN号 | 1367-9120 |
| DOI | 10.1016/j.jseaes.2020.104629 |
| 英文摘要 | A mass of lithospheric shortening occurred beneath the Tibetan Plateau due to the collision between the Indian and Eurasian plates. The extrusion of the upper crust beneath the Tibetan Plateau has been widely accepted, but whether the lithospheric mantle escapes laterally by creep deformation or rigid-block extrusion remains unclear. Based on the Pn travel time data, the velocity structure of the uppermost mantle in eastern and southeastern Tibetan Plateau was obtained by using the interstation travel-time difference method. The results show an obviously high Pn velocity beneath the Sichuan Basin and Qaidam Basin, indicating that the areas are stable blocks. The high Pn velocity beneath the eastern Lhasa terrane may be related to the underplating of the Indian lithospheric plate to the north. The Qilian block located in the north of the Kunlun fault appears as a normal Pn velocity, which indicates a mean lithospheric mantle thickness. A significantly low Pn velocity with an average of similar to 7.8 km/s in eastern and southeastern Tibetan Plateau, including the eastern Songpan-Ganzi terrane, the Chuan-Dian Diamond Block, and the northern part of Yunnan Province, indicates that the lithospheric mantle is relatively thin in these regions. Combined with other geologic and geophysical results, we propose that the lithospheric mantle of the plateau did not escape to eastern and southeastern Tibetan Plateau where the crust has been thickened by adding crustal material from the interior of the plateau. |
| WOS关键词 | VELOCITY STRUCTURE BENEATH ; NORTH CHINA CRATON ; CRUSTAL DEFORMATION ; SEISMIC ANISOTROPY ; DYNAMICS ; MARGIN ; TOMOGRAPHY ; EVOLUTION ; ASIA ; COLLISION |
| 资助项目 | National Key R&D Program of China[2016YFC0600301] ; National Natural Science Foundation of China[41974053] ; National Natural Science Foundation of China[41888101] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000609118800001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/100035]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Tian, Xiaobo; Li, Jiangtao |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.Wuhan Univ, Sch Geodesy & Geomat, Dept Geophys, Wuhan 430079, Peoples R China 5.Inst Disaster Prevent, Sanhe 065201, Hebei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Nie, Shitan,Tian, Xiaobo,Li, Jiangtao,et al. Lithospheric mantle underneath the Tibetan Plateau does not escape southeastward[J]. JOURNAL OF ASIAN EARTH SCIENCES,2021,206:10. |
| APA | Nie, Shitan,Tian, Xiaobo,Li, Jiangtao,&Tan, Ping.(2021).Lithospheric mantle underneath the Tibetan Plateau does not escape southeastward.JOURNAL OF ASIAN EARTH SCIENCES,206,10. |
| MLA | Nie, Shitan,et al."Lithospheric mantle underneath the Tibetan Plateau does not escape southeastward".JOURNAL OF ASIAN EARTH SCIENCES 206(2021):10. |
入库方式： OAI收割
来源：地质与地球物理研究所
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