Seismic anisotropy across the Kunlun fault and their implications for northward transforming lithospheric deformation in northeastern Tibet
文献类型：期刊论文
| 作者 | Wu, Chenglong1,2; Xu, Tao1,3; Badal, Jose4; Wu, Zhenbo1,2; Teng, Jiwen1 |
| 刊名 | TECTONOPHYSICS
 |
| 出版日期 | 2015-09-30 |
| 卷号 | 659页码:91-101 |
| 关键词 | Seismic anisotropy Shear-wave splitting Upper mantle deformation Kunlun fault Northeastern Tibet |
| DOI | 10.1016/j.tecto.2015.07.030 |
| 文献子类 | Article |
| 英文摘要 | The northeastern Tibet is produced by the far field effects of the India-Eurasia collision in Late Cenozoic. As the southern boundary of the northeastern Tibet the Kunlun fault is a key to understand how the Tibetan Plateau transforms lithospheric deformation outward. Using a northeast-southwest trending seismic array deployed in Songpan-Ganzi, Qaidam-Kunlun, and Qilian blocks, we measured SKS/SKKS wave splitting parameters at 15 broadband seismic stations to study the variation in anisotropy across the Kunlun fault and among these blocks. The average splitting parameters of the southern segment in Songpan-Ganzi block are N132.3 degrees E and 1.1 s respectively, and those of the northern segment in Qilian block are N103.8 degrees E and 0.98 s, interfered with the middle segment in Qaidam-Kunlun block with a smaller average delay time 0.63 s. A schematic geodynamic model is used to explain the distinct features among these blocks. Weak anisotropy suggests the strong lithosphere of Qaidam-Kunlun block with negligible deformation. A counterclockwise rotation of the fast polarization direction of about 30 degrees from Songpan-Ganzi block to Qilian block is produced by a ladder-shaped strong Qaidam-Kunlun block. (C) 2015 Elsevier B.V. All rights reserved. |
| WOS关键词 | CENOZOIC TECTONIC EVOLUTION ; WAVE SPLITTING MEASUREMENTS ; SURROUNDING REGIONS ; MANTLE DEFORMATION ; QAIDAM BASIN ; CRUSTAL ANISOTROPY ; NORTHERN-TIBET ; EASTERN MARGIN ; CENTRAL-ASIA ; QILIAN-SHAN |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000362140600007 |
| 资助机构 | Chinese Academy of Sciences(XDB03010700) ; Chinese Academy of Sciences(XDB03010700) ; China Earthquake Administration(201408023) ; China Earthquake Administration(201408023) ; National Natural Science Foundation of China(41174075 ; National Natural Science Foundation of China(41174075 ; 41474068) ; 41474068) ; Chinese Academy of Sciences(XDB03010700) ; Chinese Academy of Sciences(XDB03010700) ; China Earthquake Administration(201408023) ; China Earthquake Administration(201408023) ; National Natural Science Foundation of China(41174075 ; National Natural Science Foundation of China(41174075 ; 41474068) ; 41474068) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/62233]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithosphere Evolut, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.Univ Zaragoza, Sci B, Phys Earth, E-50009 Zaragoza, Spain |
| 推荐引用方式 GB/T 7714 | Wu, Chenglong,Xu, Tao,Badal, Jose,et al. Seismic anisotropy across the Kunlun fault and their implications for northward transforming lithospheric deformation in northeastern Tibet[J]. TECTONOPHYSICS,2015,659:91-101. |
| APA | Wu, Chenglong,Xu, Tao,Badal, Jose,Wu, Zhenbo,&Teng, Jiwen.(2015).Seismic anisotropy across the Kunlun fault and their implications for northward transforming lithospheric deformation in northeastern Tibet.TECTONOPHYSICS,659,91-101. |
| MLA | Wu, Chenglong,et al."Seismic anisotropy across the Kunlun fault and their implications for northward transforming lithospheric deformation in northeastern Tibet".TECTONOPHYSICS 659(2015):91-101. |
入库方式： OAI收割
来源：地质与地球物理研究所
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