Anisotropy of middle-upper crust derived from shear-wave splitting in the northeastern Tibetan plateau and tectonic implications
文献类型：期刊论文
| 作者 | Qian Qi-Wei1,2; Wu Jing1; Liu Geng3; Sha Cheng-Ning4; Ma Jian-Xin4; Bai Zhan-Xiao4; Zhao Yan-Jie4; Liu Xiao-Mei1,2 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 60期号:6页码:2338-2349 |
| 关键词 | Northeastern Tibetan plateau Middle-upper crust seismic anisotropy Shear-wave splitting Relocation Stress |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg20170625 |
| 文献子类 | Article |
| 英文摘要 | The northeastern Tibetan plateau (94 degrees E-105 degrees E, 32 degrees N-40 degrees N) is the front edge of expansion of this vast high land, which is crucial for understanding the evolution of the plateau. We obtain the shear-wave splitting results from waveforms of local earthquakes (2008-2014) recorded by the digital seismic network of Qinghai Province. First, we apply the HypoDD to relocate the seismic events, and choose those events within the S window (defined by the incidence angle <= 45 degrees) for further analysis. Then, we use the SAM technique to invert the shear wave splitting parameters. Totally, we obtain splitting parameters of 26 stations. The results show that two major fast shear-wave polarizations exist in Xining and adjacent areas, where multiple blocks converge. This means that seismic anisotropy in middle-upper crust of the area is controlled by both the tectonic stress and active faults. In addition, predominant polarization direction of seismic anisotropy in the crust from Yushu aftershocks is consistent with the principal compressive stress field in this region. |
| WOS关键词 | NORTH CHINA CRATON ; SEISMIC ANISOTROPY ; FLOW BENEATH ; CAPITAL AREA ; EARTHQUAKE ; STRESS ; SKS ; TOMOGRAPHY ; COLLISION ; MARGIN |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000403744600025 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/50252]  |
| 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 | Qian Qi-Wei |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.China Earthquake Adm, Inst Earthquake Sci, Beijing 100036, Peoples R China 4.Qinghai Earthquake Adm, Xining 810001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qian Qi-Wei,Wu Jing,Liu Geng,et al. Anisotropy of middle-upper crust derived from shear-wave splitting in the northeastern Tibetan plateau and tectonic implications[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2017,60(6):2338-2349. |
| APA | Qian Qi-Wei.,Wu Jing.,Liu Geng.,Sha Cheng-Ning.,Ma Jian-Xin.,...&Liu Xiao-Mei.(2017).Anisotropy of middle-upper crust derived from shear-wave splitting in the northeastern Tibetan plateau and tectonic implications.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,60(6),2338-2349. |
| MLA | Qian Qi-Wei,et al."Anisotropy of middle-upper crust derived from shear-wave splitting in the northeastern Tibetan plateau and tectonic implications".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 60.6(2017):2338-2349. |
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。