Rayleigh-wave dispersion reveals crust-mantle decoupling beneath eastern Tibet
文献类型：期刊论文
| 作者 | Legendre, Cedric P.1; Deschamps, Frederic1; Zhao, Li1; Chen, Qi-Fu2 |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2015-11-09 |
| 卷号 | 5 |
| DOI | 10.1038/srep16644 |
| 文献子类 | Article |
| 英文摘要 | The Tibetan Plateau results from the collision of the Indian and Eurasian Plates during the Cenozoic, which produced at least 2,000 km of convergence. Its tectonics is dominated by an eastward extrusion of crustal material that has been explained by models implying either a mechanical decoupling between the crust and the lithosphere, or lithospheric deformation. Discriminating between these end-member models requires constraints on crustal and lithospheric mantle deformations. Distribution of seismic anisotropy may be inferred from the mapping of azimuthal anisotropy of surface waves. Here, we use data from the CNSN to map Rayleigh-wave azimuthal anisotropy in the crust and lithospheric mantle beneath eastern Tibet. Beneath Tibet, the anisotropic patterns at periods sampling the crust support an eastward flow up to 100 degrees E in longitude, and a southward bend between 100 degrees E and 104 degrees E. At longer periods, sampling the lithospheric mantle, the anisotropic structures are consistent with the absolute plate motion. By contrast, in the Sino-Korean and Yangtze cratons, the direction of fast propagation remains unchanged throughout the period range sampling the crust and lithospheric mantle. These observations suggest that the crust and lithospheric mantle are mechanically decoupled beneath eastern Tibet, and coupled beneath the Sino-Korean and Yangtze cratons. |
| WOS关键词 | CURRENT PLATE MOTIONS ; SEISMIC ANISOTROPY ; PHASE VELOCITIES ; CENTRAL-ASIA ; LITHOSPHERIC DEFORMATION ; AZIMUTHAL ANISOTROPY ; SOUTHEAST-ASIA ; FLOW ; SHEAR ; CHINA |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000364296000001 |
| 资助机构 | Academia Sinica Career Development Award(AS-098-CDA-M02) ; Academia Sinica Career Development Award(AS-098-CDA-M02) ; National Science Council of Taiwan(NSC-101-2116-M-001-035 ; National Science Council of Taiwan(NSC-101-2116-M-001-035 ; Ministry of Science and Technology (MOST) of Taiwan(MOST 103-2116-M-001-026-MY3) ; Ministry of Science and Technology (MOST) of Taiwan(MOST 103-2116-M-001-026-MY3) ; NSC-101-2116-M-001-001-MY3) ; NSC-101-2116-M-001-001-MY3) ; Academia Sinica Career Development Award(AS-098-CDA-M02) ; Academia Sinica Career Development Award(AS-098-CDA-M02) ; National Science Council of Taiwan(NSC-101-2116-M-001-035 ; National Science Council of Taiwan(NSC-101-2116-M-001-035 ; Ministry of Science and Technology (MOST) of Taiwan(MOST 103-2116-M-001-026-MY3) ; Ministry of Science and Technology (MOST) of Taiwan(MOST 103-2116-M-001-026-MY3) ; NSC-101-2116-M-001-001-MY3) ; NSC-101-2116-M-001-001-MY3) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/62179]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 作者单位 | 1.Acad Sinica, Inst Earth Sci, Taipei 11529, Taiwan 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Legendre, Cedric P.,Deschamps, Frederic,Zhao, Li,et al. Rayleigh-wave dispersion reveals crust-mantle decoupling beneath eastern Tibet[J]. SCIENTIFIC REPORTS,2015,5. |
| APA | Legendre, Cedric P.,Deschamps, Frederic,Zhao, Li,&Chen, Qi-Fu.(2015).Rayleigh-wave dispersion reveals crust-mantle decoupling beneath eastern Tibet.SCIENTIFIC REPORTS,5. |
| MLA | Legendre, Cedric P.,et al."Rayleigh-wave dispersion reveals crust-mantle decoupling beneath eastern Tibet".SCIENTIFIC REPORTS 5(2015). |
入库方式： OAI收割
来源：地质与地球物理研究所
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