P-Wave Velocity Structure in the Crust and Upper Mantle beneath Northeastern South China Sea and Surrounding Regions

• 责任者：Li Zhiwei (Key Laboratory of Petroleum Resources Research ; Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China) ; Xu Yi
• 刊名：Earth Science Frontiers
• 出版年：2009
• 卷期：16(4)
• 关键词：上地幔 ; upper mantle ; 速度结构 ; velocity structure ; 地壳 ; crust ; 南海 ; South China Sea
• 页码：p.252-260
• 图表：6 illus., 29 refs.
• 分类号：0400
• issnNo：ISSN1005-2321
• isbnNo：CN11-3370/P

With the P-wave arrival times from Chinese and ISC stations, the authors conducted the tomographic inversion for the 3-D velocity structure in the crust and mantle beneath the northeastern South China Sea (SCS) and surrounding regions by using spherical finite difference technique. The authors analyzed the tectonic differences and deep geodynamic characteristics based on the tomographic results, which show high velocity anomalies at the uppermost mantle beneath the northeast SCS, and depict the lithospheric mantle extension from South China continent to marginal sea.