Less-Well-Developed Crustal Channel-Flow in the Central Tibetan Plateau Revealed by Receiver Function and Surface Wave Joint Inversion
文献类型：期刊论文
| 作者 | Nie, Shitan1,2; Tian, Xiaobo1,2; Liang, Xiaofeng1,2; Wan, Bo1,2 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
 |
| 出版日期 | 2023-04-01 |
| 卷号 | 128期号:4页码:15 |
| 关键词 | Tibetan Plateau crustal channel-flow joint inversion receiver function surface wave |
| ISSN号 | 2169-9313 |
| DOI | 10.1029/2022JB025747 |
| 英文摘要 | A crustal channel-flow model has been previously used to explain the formation of crustal extensional structures in the Tibetan Plateau. However, the existence of massive crustal channel-flow in the central plateau is still controversial. To reveal the crustal S-wave velocity structure with high vertical resolution, we conducted a joint inversion of receiver functions and surface wave dispersions from the 2-D broadband seismic array SANDWICH deployed in the central plateau. Our results show a low-velocity layer (LVL) in the middle-lower crust beneath all stations. The minimum S-wave velocity in each LVL is mostly within 3.0-3.4 km/s, which result in the maximum velocity reductions are less than 17.5%. It deduces a melt volume percentage (MVP) less than 7% even attributing all velocity reduction to partial melting of rocks. Our study suggests that there is not a high enough melt volume in central Tibet to develop crustal channel-flow, which requires a larger MVP to decrease rock strength more than an order of magnitude. The formation of extensional structures in the central plateau may contribute to ductile deformation in the middle-lower crust but not crustal channel-flow. |
| WOS关键词 | EXPERIMENTAL DEFORMATION ; SEISMIC VELOCITIES ; AMBIENT NOISE ; DISPERSION ; BENEATH ; ARRAY ; EVOLUTION ; SANDWICH ; RHEOLOGY ; GRANITE |
| 资助项目 | National Natural Science Foundation of China[42030308] ; National Natural Science Foundation of China[41974053] ; National Key R&D Program of China[2016YFC0600301] ; K.C. Wong Education Foundation[GJTD-2019-04] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000963601300001 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | 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 ; K.C. Wong Education Foundation ; K.C. Wong Education Foundation ; 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 ; K.C. Wong Education Foundation ; K.C. Wong Education Foundation ; 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 ; K.C. Wong Education Foundation ; K.C. Wong Education Foundation ; 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 ; K.C. Wong Education Foundation ; K.C. Wong Education Foundation |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/111336]  |
| 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 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Nie, Shitan,Tian, Xiaobo,Liang, Xiaofeng,et al. Less-Well-Developed Crustal Channel-Flow in the Central Tibetan Plateau Revealed by Receiver Function and Surface Wave Joint Inversion[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2023,128(4):15. |
| APA | Nie, Shitan,Tian, Xiaobo,Liang, Xiaofeng,&Wan, Bo.(2023).Less-Well-Developed Crustal Channel-Flow in the Central Tibetan Plateau Revealed by Receiver Function and Surface Wave Joint Inversion.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,128(4),15. |
| MLA | Nie, Shitan,et al."Less-Well-Developed Crustal Channel-Flow in the Central Tibetan Plateau Revealed by Receiver Function and Surface Wave Joint Inversion".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 128.4(2023):15. |
入库方式： OAI收割
来源：地质与地球物理研究所
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