Crustal deformation in eastern margin of Tibetan Plateau from a dense linear seismic array
文献类型：期刊论文
| 作者 | Tan, Ping1,3; Nie, Shitan2 |
| 刊名 | PHYSICS OF THE EARTH AND PLANETARY INTERIORS
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 321页码:9 |
| 关键词 | Eastern Tibet Seismic anisotropy Crustal deformation Crustal flow H-kappa-c |
| ISSN号 | 0031-9201 |
| DOI | 10.1016/j.pepi.2021.106801 |
| 英文摘要 | Crustal anisotropy beneath a dense broadband seismic array across the Longmenshan fault belt is measured based on P-to-S converted phases from the Moho and an intra-crustal interface. The crustal thickness and the average Vp/Vs values are also estimated by a new H-kappa-c method. The crustal anisotropy in Aba sub-block mainly comes from the middle-lower crust and the NW-SE fast polarization directions (FPDs) may reflect the direction of the crustal flow. A sharp variation of FPDs is observed in the vicinity of the Longriba faults, combined with the Vp/Vs values and other geological and geophysical observations, we suggest the Longriba faults may block the eastward flow of crustal materials. East of the Longriba faults, the consistence between the FPDs and the direction of the maximum horizontal compression, and low Vp/Vs values indicated that the crustal thickening may be the dominant deformation mechanism in the Longmenshan sub-block. The crustal anisotropy in the Longmenshan fault belt is mainly manifested as fault-parallel FPDs, probably related to fluid-filled fractures in this area. The Sichuan basin is weakly anisotropic and the NE-SW FPDs may reflect the tectonic strike. Combined with previous observations, our results suggest that the crustal flow and crustal thickening are co-exist in the crustal deformation in eastern Tibet. |
| WOS关键词 | UPPER-MANTLE STRUCTURE ; LONGRIBA FAULT ZONE ; ANISOTROPY BENEATH ; VELOCITY STRUCTURE ; SPLITTING ANALYSIS ; MOHO DEPTH ; FLOW ; EARTHQUAKE ; STRAIN ; DYNAMICS |
| 资助项目 | National Natural Science Foundation of China[41904055] ; Hebei Natural Science Foundation[D2020512005] ; Fundamental Research Funds for the Central Universities[ZY20180235] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000703664100004 |
| 出版者 | ELSEVIER |
| 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 ; Hebei Natural Science Foundation ; Hebei Natural Science Foundation ; Hebei Natural Science Foundation ; Hebei Natural Science Foundation ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Hebei Natural Science Foundation ; Hebei Natural Science Foundation ; Hebei Natural Science Foundation ; Hebei Natural Science Foundation ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Hebei Natural Science Foundation ; Hebei Natural Science Foundation ; Hebei Natural Science Foundation ; Hebei Natural Science Foundation ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Hebei Natural Science Foundation ; Hebei Natural Science Foundation ; Hebei Natural Science Foundation ; Hebei Natural Science Foundation ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/102734]  |
| 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 | Nie, Shitan |
| 作者单位 | 1.Inst Disaster Prevent, Sanhe 065201, Hebei, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Hebei Key Lab Earthquake Dynam, Sanhe 065201, Hebei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tan, Ping,Nie, Shitan. Crustal deformation in eastern margin of Tibetan Plateau from a dense linear seismic array[J]. PHYSICS OF THE EARTH AND PLANETARY INTERIORS,2021,321:9. |
| APA | Tan, Ping,&Nie, Shitan.(2021).Crustal deformation in eastern margin of Tibetan Plateau from a dense linear seismic array.PHYSICS OF THE EARTH AND PLANETARY INTERIORS,321,9. |
| MLA | Tan, Ping,et al."Crustal deformation in eastern margin of Tibetan Plateau from a dense linear seismic array".PHYSICS OF THE EARTH AND PLANETARY INTERIORS 321(2021):9. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。