| Focal depths and mechanisms of shallow earthquakes in the Himalayan-Tibetan region | |
| Bai, L (Bai, Ling); Li, GH (Li, Guohui); Khan, NG (Khan, Nangyal G.); Zhao, JM (Zhao, Junmeng); Ding, L (Ding, Lin); Bai, L | |
| Source Publication | GONDWANA RESEARCH
 |
| 2017 | |
| Volume | 41Issue:0Pages:390-399 |
| DOI | 10.1016/j.gr.2015.07.009 |
| Abstract | The complexity of the Himalayan-Tibetan lithospheric deformation is evident from widespread seismicity and diverse focal mechanism solutions. Here we investigate the focal depths and fault plane solutions of 97 moderate and shallow earthquakes in the Himalayan-Tibetan region by modeling teleseismic P-wave and its tailing surface reflections pP and sP. Earthquakes in central Tibet are restricted to the upper crust and originate dominantly by strike-slip faulting, in agreement with the low P-wave velocity layers in the lower crust and the strong S-wave attenuation zones in the uppermost mantle. In northern and southern Tibet, where the Asian and Indian plates descend beneath central Tibet, earthquakes appear to be distributed throughout the thickness of the crust and exhibit dominantly reverse faulting. We incorporate well-estimated focal depths of 127 additional earthquakes from previous studies to estimate the seismogenic thickness (Ts) of the study region. The resulting pattern of Ts is found to be rather flat for central and northeastern Tibet and highly variable along the strike of the Himalayan foreland. (C) 2015 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved. |
| Subject Area | 地球物理学 |
| WOS ID | WOS:000397873300025 |
| Language | 英语 |
| Indexed By | SCI |
| Keyword | MANTLE BENEATH TIBET FAULT PLANE SOLUTIONS SOUTHERN TIBET LITHOSPHERIC MANTLE VELOCITY STRUCTURE SOURCE PARAMETERS ACTIVE TECTONICS TRAVEL-TIMES CENTRAL-ASIA TIEN-SHAN |
| WOS Research Area | Geology |
| WOS Subject | Geosciences, Multidisciplinary ; Geology |
| Cooperation Status | 国内 |
| Subtype | Article |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itpcas.ac.cn/handle/131C11/8391 |
| Collection | 图书馆 |
| Corresponding Author | Bai, L |
| Affiliation | Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing 100101, Peoples R China. |
| Recommended Citation GB/T 7714 | Bai, L ,Li, GH ,Khan, NG ,et al. Focal depths and mechanisms of shallow earthquakes in the Himalayan-Tibetan region[J]. GONDWANA RESEARCH,2017,41(0):390-399. |
| APA | Bai, L ,Li, GH ,Khan, NG ,Zhao, JM ,Ding, L ,&Bai, L.(2017).Focal depths and mechanisms of shallow earthquakes in the Himalayan-Tibetan region.GONDWANA RESEARCH,41(0),390-399. |
| MLA | Bai, L ,et al."Focal depths and mechanisms of shallow earthquakes in the Himalayan-Tibetan region".GONDWANA RESEARCH 41.0(2017):390-399. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| V.41 390-399 2017.pd（2864KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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