P-n tomographic velocity and anisotropy beneath the Tibetan Plateau and the adjacent regions
文献类型：期刊论文
| 作者 | Lu, Yan ; Ni, Sidao ; Liu, Bin ; Sun, Youshun |
| 刊名 | Earth Planets and Space
 |
| 出版日期 | 2011 |
| 期号 | 11页码:1169-1173 |
| 中文摘要 | We present a tomographic velocity and anisotropy model of the uppermost mantle beneath the Tibetan Plateau and the adjacent regions. The investigation analyzed 105,385 P-n phase readings from the International Seismological Centre (ISC) and the China Earthquake Data Center. The average P-n velocity under the study area is approximately 8.15 km/s, with velocity perturbations up to 3-4%. We find high P-n velocities under the Indian Plate and in the Tarim and Sichuan basins, low P-n velocities under the Hindu Kush and in Myanmar and the adjacent region, and especially low P-n velocities under the area north of the Indus-Yarlung Zangbo suture. The high P-n velocity anomalies of the Indian Plate are discontinuous at the collision region in the east-west direction, indicating that the Indian Plate probably subducts in a piecewise manner. Distributions of P-n velocities are used to validate mechanisms for the subduction of the Indian Plate presented in previous studies. In addition, P-n anisotropy is obtained simultaneously with P-n velocity. At plate collision zones, the fast P-n anisotropy direction is parallel to the direction of the collision edge. We validate the existence of P-n anisotropy under these regions and discuss the relationship of anisotropy with tectonic structure and plate movement. |
| 原文出处 | |
| 公开日期 | 2012-04-11 |
| 源URL | [http://ir.whigg.ac.cn/handle/342008/3187]  |
| 专题 | 测量与地球物理研究所_其他_期刊论文 |
| 推荐引用方式 GB/T 7714 | Lu, Yan,Ni, Sidao,Liu, Bin,et al. P-n tomographic velocity and anisotropy beneath the Tibetan Plateau and the adjacent regions[J]. Earth Planets and Space,2011(11):1169-1173. |
| APA | Lu, Yan,Ni, Sidao,Liu, Bin,&Sun, Youshun.(2011).P-n tomographic velocity and anisotropy beneath the Tibetan Plateau and the adjacent regions.Earth Planets and Space(11),1169-1173. |
| MLA | Lu, Yan,et al."P-n tomographic velocity and anisotropy beneath the Tibetan Plateau and the adjacent regions".Earth Planets and Space .11(2011):1169-1173. |
入库方式： OAI收割
来源：测量与地球物理研究所
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