A New Body-Wave Amplitude Ratio-Based Method for Imaging Shallow Crustal Structure and Its Application in the Sichuan Basin, Southwestern China
文献类型：期刊论文
| 作者 | Wang, Xu1; Chen, Ling1,2,4; Yao, Huajian3,4 |
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 出版日期 | 2021-09-28 |
| 卷号 | 48期号:18页码:11 |
| ISSN号 | 0094-8276 |
| 关键词 | body wave amplitude ratio joint inversion Poisson's ratio shallow crust Sichuan Basin |
| DOI | 10.1029/2021GL095186 |
| 英文摘要 | Shallow crustal velocity and Poisson's ratio structures are of key importance to understand rock properties and near-surface tectonic deformation and evolution. We propose a novel imaging method to acquire such information at individual stations by joint inversion of amplitude ratios between the horizontal and vertical components of both teleseismic P and S waves. Our synthetic experiments demonstrate the validity of the method in recovering subsurface structures up to similar to 8-10 km depth. We apply this method to construct the velocity and Poisson's ratio images along a NW-SE-trending seismic array within the Sichuan Basin, southwestern China. The results reveal well developed stratification and localized high Poisson's ratio anomalies, which reflect a long-term stable sedimentary environment and fault-related deformation in response to the Cenozoic Tibet-basin collision, consistent with geological observations. Our new method builds a bridge between fine-scale near-surface seismic exploration and large-scale deep passive-source imaging, especially for areas of weak seismicity. |
| WOS关键词 | LONGMEN SHAN ; SOUTHERN CALIFORNIA ; VELOCITY STRUCTURE ; INVERSION ; BOUNDARY ; DENSITY ; EASTERN ; REGION |
| 资助项目 | National Natural Science Foundation of China[42004041] ; National Natural Science Foundation of China[41688103] ; China Postdoctoral Science Foundation[2019M660784] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:000703685100057 |
| 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 ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/102714]  |
| 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 | Chen, Ling |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 3.Univ Sci & Technol China, Sch Earth & Space Sci, Lab Seismol & Phys Earths Interior, Hefei, Peoples R China 4.CAS Ctr Excellence Deep Earth Sci, Guangzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xu,Chen, Ling,Yao, Huajian. A New Body-Wave Amplitude Ratio-Based Method for Imaging Shallow Crustal Structure and Its Application in the Sichuan Basin, Southwestern China[J]. GEOPHYSICAL RESEARCH LETTERS,2021,48(18):11. |
| APA | Wang, Xu,Chen, Ling,&Yao, Huajian.(2021).A New Body-Wave Amplitude Ratio-Based Method for Imaging Shallow Crustal Structure and Its Application in the Sichuan Basin, Southwestern China.GEOPHYSICAL RESEARCH LETTERS,48(18),11. |
| MLA | Wang, Xu,et al."A New Body-Wave Amplitude Ratio-Based Method for Imaging Shallow Crustal Structure and Its Application in the Sichuan Basin, Southwestern China".GEOPHYSICAL RESEARCH LETTERS 48.18(2021):11. |
入库方式： OAI收割
来源：地质与地球物理研究所
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