Electrical resistivity structure of the Xiaojiang strike-slip fault system (SW China) and its tectonic implications
文献类型：期刊论文
| 作者 | Li, Xin1,2; Bai, Denghai1,2; Ma, Xiaobing2; Chen, Yun1,2; Varentsov, Ivan M.3; Xue, Guoqiang2; Xue, Shuai1,2; Lozovsky, Ilya3 |
| 刊名 | JOURNAL OF ASIAN EARTH SCIENCES
 |
| 出版日期 | 2019-06-01 |
| 卷号 | 176页码:57-67 |
| 关键词 | Deformation mechanism Xiaojiang strike-slip fault system Southeastern Tibet Electrical resistivity structure Magnetotellurics |
| ISSN号 | 1367-9120 |
| DOI | 10.1016/j.jseaes.2019.01.031 |
| 英文摘要 | It is widely accepted that large-scale strike-slip faults play an important role in accommodating the India-Eurasia convergence, but the relationships between surface displacements and deep deformation along the faults remain largely uncertain. To address this issue, new magnetotelluric (MT) images were obtained along two profiles across the Xiaojiang strike-slip fault system (XJFS), one of the most tectonically active areas in southwest China. Although different in details, these two profiles show similar overall crustal structures. The upper crust is generally resistive but separated by several narrow, subvertical conductors that broadly coincide with the surface traces of the XJFS. These fault zone conductors (FZCs) are interpreted to represent fault damage zones that formed by strike-slip faulting/shearing along the faults and filled with deeply-sourced magmatic and/or meta-morphic fluids. The lower crust is broadly characterized by enhanced conductivity and likely associated with partial melting at high temperatures. These observations are consistent with other geophysical measurements in this area and in favor of the development of ductile flow along the XJFS, although the pattern of flow is more complex than previously suggested. Based on these observations, we propose that active deformation along the XJFS can be better described, in the brittle upper crust, by strike-slip motion along the fluid-weakened faults, and by shear-enhanced ductile flow in the partially molten lower crust. These two mechanisms are not mutually exclusive but rather can be complementary to each other. |
| WOS关键词 | MAGNETOTELLURIC PROFILE DATA ; TIBETAN PLATEAU ; SE TIBET ; CRUSTAL STRUCTURE ; MANTLE STRUCTURE ; WAVE DISPERSION ; EASTERN MARGIN ; DEFORMATION ; INVERSION ; BENEATH |
| 资助项目 | National Natural Science Foundation of China[41474056] ; National Natural Science Foundation of China[41330212] ; National Natural Science Foundation of China[41611530699] ; Russian Foundation for Basic Research[17-55-53102_a] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000466823600005 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | 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 Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; 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 Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; 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 Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; 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 Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research ; Russian Foundation for Basic Research |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/91492]  |
| 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 | Bai, Denghai |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 3.Russian Acad Sci, Inst Phys Earth, Geoelectromagnet Res Ctr, Moscow 108840, Russia |
| 推荐引用方式 GB/T 7714 | Li, Xin,Bai, Denghai,Ma, Xiaobing,et al. Electrical resistivity structure of the Xiaojiang strike-slip fault system (SW China) and its tectonic implications[J]. JOURNAL OF ASIAN EARTH SCIENCES,2019,176:57-67. |
| APA | Li, Xin.,Bai, Denghai.,Ma, Xiaobing.,Chen, Yun.,Varentsov, Ivan M..,...&Lozovsky, Ilya.(2019).Electrical resistivity structure of the Xiaojiang strike-slip fault system (SW China) and its tectonic implications.JOURNAL OF ASIAN EARTH SCIENCES,176,57-67. |
| MLA | Li, Xin,et al."Electrical resistivity structure of the Xiaojiang strike-slip fault system (SW China) and its tectonic implications".JOURNAL OF ASIAN EARTH SCIENCES 176(2019):57-67. |
入库方式： OAI收割
来源：地质与地球物理研究所
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