Deep structure beneath the west margin of philippine sea plate and south china sea from p and s wave travel time tomography
文献类型：期刊论文
| 作者 | Qu Chen; Zhou Hui-Lan; Zhao Da-Peng |
| 刊名 | Chinese journal of geophysics-chinese edition
 |
| 出版日期 | 2007-11-01 |
| 卷号 | 50期号:6页码:1757-1768 |
| 关键词 | Philippine sea plate South china sea Deep structure P and s wave tomography |
| ISSN号 | 0001-5733 |
| 通讯作者 | Qu chen(quchen@mails.gucas.ac.cn) |
| 英文摘要 | The velocity model v-pf from a data set of p waves, and 3-d models of v-p and v, estimated from p and s wave data with the same source-receiver pairs, were respectively determined for the area of philippine sea plate (php) and south china sea (scs). the results obtained revealed the following features: (i) the interactions between the php and eurasia plate (euap) are different in different parts of the west boundary of php. along the ryukyu trench, the php subducts beneath euap down to a depth of 400 km. under taiwan island, the euap steeply subducts down to about 400 km depth, and then toward php until it reaches a depth of about 660 km. at the north segment of manila trench, a nearly vertical slab inserts down to about 660 km depth. underneath philippine trench, the subducting php slab inserts into euap, and penetrates below the 660' -discontinuity. (2) under the scs, there is a low-velocity area (lva) of large width which is visible at depths of 300 similar to 400 km. it wriggles and reaches to another lva at depth about 700 kin under yingqiong basin. within the lva under scs, there are two small but prominent low velocity anomalies: one beneath haikou volcano, and another beneath zhujiangkou basin. (3) the statistical results of the perturbations of v-s and v-b (the bulk-sound velocity calculated from v-p and v-s) show that: firstly, the change rates of average perturbations of v, and vb with depth are reverse within some depth ranges. secondly, the averages of relative perturbations of v, are bigger than that of vb in the old subducting pacific slab. in the young subducting php slab, however, this contrast relationship is opposite. |
| WOS关键词 | TAIWAN ; ASIA ; INSIGHTS ; REGION ; JAPAN ; SLABS ; MODEL |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000251343600016 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2383497 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Qu Chen |
| 作者单位 | 1.Grad Univ Chinese Acad Sci, Lab Computat Geodynam, Beijing 100049, Peoples R China 2.Tohoku Univ, Dept Geophys, Sendai, Miyagi 9808578, Japan |
| 推荐引用方式 GB/T 7714 | Qu Chen,Zhou Hui-Lan,Zhao Da-Peng. Deep structure beneath the west margin of philippine sea plate and south china sea from p and s wave travel time tomography[J]. Chinese journal of geophysics-chinese edition,2007,50(6):1757-1768. |
| APA | Qu Chen,Zhou Hui-Lan,&Zhao Da-Peng.(2007).Deep structure beneath the west margin of philippine sea plate and south china sea from p and s wave travel time tomography.Chinese journal of geophysics-chinese edition,50(6),1757-1768. |
| MLA | Qu Chen,et al."Deep structure beneath the west margin of philippine sea plate and south china sea from p and s wave travel time tomography".Chinese journal of geophysics-chinese edition 50.6(2007):1757-1768. |
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来源：中国科学院大学
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