Complex seismic anisotropic structure beneath the central Tien Shan revealed by shear wave splitting analyses
文献类型：期刊论文
| 作者 | Li, YH ; Wu, QJ; Jiang LJ(江丽君); Jiang, LJ; Zhang, RQ
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| 刊名 | GEOPHYSICAL JOURNAL INTERNATIONAL
 |
| 出版日期 | 2010 |
| 卷号 | 181期号:3页码:1678-1686 |
| 关键词 | Seismic anisotropy Kinematics of crustal and mantle deformation Asia |
| 通讯作者 | [Li, Yonghua ; Wu, Qingju ; Zhang, Ruiqing] China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China ; [Jiang, Lijun] CAS, Inst High Energy Phys, Beijing 100049, Peoples R China |
| 英文摘要 | P>Shear wave splitting parameters (fast polarization directions and splitting times) obtained at the permanent broad-band station Wushi (WUS), which is situated in central Tien Shan, China, demonstrate systematic azimuthal variations. The fast polarization directions range from 26 degrees to 85 degrees and the delay times range from 0.4 to 1.6 s, suggesting a complex anisotropic structure that cannot be adequately explained by a single anisotropic layer with horizontal axis of symmetry. The azimuthal variations have an apparent 90 degrees periodicity and thus can be best explained by a two-layer anisotropic model with horizontal symmetry axes. The optimal fast direction for the upper layer is in the 60 degrees-80 degrees range that is subparallel to the strike of the Tien Shan orogenic belt, and can consequently be attributed to the ongoing N-S directed shortening. The fast direction for the lower layer ranges from 85 degrees to 105 degrees and can be explained by lattice-preferred orientation of olivine crystals in the asthenosphere associated with present-day absolute plate motion of the Eurasian plate. |
| 学科主题 | Geochemistry & Geophysics |
| 类目[WOS] | Geochemistry & Geophysics |
| 研究领域[WOS] | Geochemistry & Geophysics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000277716400034 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/239473]  |
| 专题 | 高能物理研究所_多学科研究中心 中国科学院高能物理研究所_中国散裂中子源 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Li, YH,Wu, QJ,Jiang LJ,et al. Complex seismic anisotropic structure beneath the central Tien Shan revealed by shear wave splitting analyses[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2010,181(3):1678-1686. |
| APA | Li, YH,Wu, QJ,江丽君,Jiang, LJ,&Zhang, RQ.(2010).Complex seismic anisotropic structure beneath the central Tien Shan revealed by shear wave splitting analyses.GEOPHYSICAL JOURNAL INTERNATIONAL,181(3),1678-1686. |
| MLA | Li, YH,et al."Complex seismic anisotropic structure beneath the central Tien Shan revealed by shear wave splitting analyses".GEOPHYSICAL JOURNAL INTERNATIONAL 181.3(2010):1678-1686. |
入库方式： OAI收割
来源：高能物理研究所
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