| P-wave seismic tomography of the Manila subduction zone | |
| Fan Jian-Ke1,2; Wu Shi-Guo1,2; Fan, JK (reprint author), Chinese Acad Sci, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China. | |
| 2014-07-01 | |
| 发表期刊 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 卷号 | 57期号:7页码:2127-2137 |
| 文章类型 | Article |
| 摘要 | The P-wave velocity perturbation images beneath the Manila Subduction zone are generated by utilizing P-wave arrival times from International Seismological Centre (1960-2008) and the seismic tomographic inversion method. The data set is comprised by 12582 high-quality P-wave arrival times from 1372 regional earthquakes and 14799 travel-time residuals from 2129 teleseismic events. The results show that the shape of the subducted South China Sea slab (SCSs) represented by high velocity anomalies changes with latitudes. From 14 degrees N to 16 degrees N, the subduction angle and depth are both larger than that at 17 degrees N, whereas the SCSs is subducted to the mantle transition zone at a nearly vertical angle at 18 degrees N. The different subduction angles from 17 degrees N to 18 degrees N suggest the slab tearing in the SCSs which turns from nearly-vertical above 300 km depth to horizontal at 200 similar to 300 km depth at 14 degrees N, much different from the distribution of seismic sources, also suggesting the possible slab tearing in the SCSs and the elevation of the 410 km discontinuity. The subduction length and time of SCSs calculated by the tomographic results at different latitudes suggest that the area of the original SCSs was about twice that its present range, and the subduction of the SCSs started at 14 degrees N and propagated from south to north. |
| 关键词 | Seismic Tomography Manila Subduction Zone South China Sea Philippine Sea |
| 学科领域 | Geochemistry & Geophysics |
| DOI | 10.6038/cjg20140709 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000339645100009 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/23837 |
| 专题 | 海洋地质与环境重点实验室 |
| 通讯作者 | Fan, JK (reprint author), Chinese Acad Sci, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Fan Jian-Ke,Wu Shi-Guo,Fan, JK . P-wave seismic tomography of the Manila subduction zone[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2014,57(7):2127-2137. |
| APA | Fan Jian-Ke,Wu Shi-Guo,&Fan, JK .(2014).P-wave seismic tomography of the Manila subduction zone.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,57(7),2127-2137. |
| MLA | Fan Jian-Ke,et al."P-wave seismic tomography of the Manila subduction zone".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 57.7(2014):2127-2137. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| P-wave seismic tomog（8641KB） | 限制开放 | ODC PDDL | 浏览 | |||
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