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V (p) and V (p)/V (s) structures in the crust and upper mantle of the Taiwan region, China

文献类型：期刊论文

作者Li ZhiWei; Xu Yi; Hao TianYao; Xu Ya
刊名SCIENCE IN CHINA SERIES D-EARTH SCIENCES
出版日期2009-07-01
卷号52期号:7页码:975-983
关键词Taiwan region P wave velocity V-p/V-s ratio lithosphere structure tomography
ISSN号1006-9313
DOI10.1007/s11430-009-0091-2
文献子类Article
英文摘要A tomographic study of the V (p) and V (p)/V (s) structures in the crust and upper mantle beneath the Taiwan region of China is conducted by simultaneous inversion of P and S arrival times. Compared with the previous tomographic results, the spherical finite difference technique is suitable for the strong heterogeneous velocity structure, and may improve the accuracy in the travel time and three-dimensional ray tracing calculations. The V (p) and V (p)/V (s) structures derived from joint inversion and the relocated earthquakes can provide better constraints for analyzing the lateral heterogeneity and deep tectonic characters in the crust and upper mantle. Our tomographic results reveal significant relations between the seismic wavespeed structure and the tectonic characters. In the shallow depth, sedimentary basins and orogen show distinct wavespeed anomalies, with low V (p), high V (p)/V (s) in basins and high V (p), low V (p)/V (s) in orogen. As the suture zone of Eurasian Plate and Philippine Sea Plate, Longitudinal Valley is characterized by a significant high V (p)/V (s) anomaly extending to the middle-lower crust and upper mantle, which reflects the impact of rock cracking, partial melting, and the presence of fluids. In the northeast Taiwan, the V (p), V (p)/V (s) anomalies and relocated earthquakes depict the subducting Philippine Sea Plate under the Eurasian Plate. The high V (p) of oceanic plate and the low V (p), high V (p)/V (s) atop the subducted oceanic plate extend to 80 km depth. Along the east-west profiles, the thickness of crust reaches 60 km at the east of Central Range with eastward dipping trend, which reveals the eastward subduction of the thickened and deformed crust of the Eurasian continental plate.
WOS关键词WAVE VELOCITY ; STRUCTURE BENEATH ; 3-DIMENSIONAL P ; PHILIPPINE SEA ; NEW-ZEALAND ; FIELD ; SUBDUCTION ; TECTONICS ; COLLISION ; CALIFORNIA
WOS研究方向Geology
语种英语
WOS记录号WOS:000267687400008
出版者SCIENCE PRESS
资助机构Chinese Academy of Sciences(KZCX3-SW-234-2) ; Chinese Academy of Sciences(KZCX3-SW-234-2) ; National Basic Research Program of China(2007CB411701) ; National Basic Research Program of China(2007CB411701) ; National High Technology Research and Development Program of China(2006AA09A101-0201) ; National High Technology Research and Development Program of China(2006AA09A101-0201) ; National Natural Science Foundation of China(40804016 ; National Natural Science Foundation of China(40804016 ; 40704013) ; 40704013) ; Chinese Academy of Sciences(KZCX3-SW-234-2) ; Chinese Academy of Sciences(KZCX3-SW-234-2) ; National Basic Research Program of China(2007CB411701) ; National Basic Research Program of China(2007CB411701) ; National High Technology Research and Development Program of China(2006AA09A101-0201) ; National High Technology Research and Development Program of China(2006AA09A101-0201) ; National Natural Science Foundation of China(40804016 ; National Natural Science Foundation of China(40804016 ; 40704013) ; 40704013) ; Chinese Academy of Sciences(KZCX3-SW-234-2) ; Chinese Academy of Sciences(KZCX3-SW-234-2) ; National Basic Research Program of China(2007CB411701) ; National Basic Research Program of China(2007CB411701) ; National High Technology Research and Development Program of China(2006AA09A101-0201) ; National High Technology Research and Development Program of China(2006AA09A101-0201) ; National Natural Science Foundation of China(40804016 ; National Natural Science Foundation of China(40804016 ; 40704013) ; 40704013) ; Chinese Academy of Sciences(KZCX3-SW-234-2) ; Chinese Academy of Sciences(KZCX3-SW-234-2) ; National Basic Research Program of China(2007CB411701) ; National Basic Research Program of China(2007CB411701) ; National High Technology Research and Development Program of China(2006AA09A101-0201) ; National High Technology Research and Development Program of China(2006AA09A101-0201) ; National Natural Science Foundation of China(40804016 ; National Natural Science Foundation of China(40804016 ; 40704013) ; 40704013)
源URL[http://ir.iggcas.ac.cn/handle/132A11/70896]  
专题中国科学院地质与地球物理研究所
通讯作者Li ZhiWei
作者单位Chinese Acad Sci, Key Lab Petr Resources Res, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Li ZhiWei,Xu Yi,Hao TianYao,et al. V (p) and V (p)/V (s) structures in the crust and upper mantle of the Taiwan region, China[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2009,52(7):975-983.
APA Li ZhiWei,Xu Yi,Hao TianYao,&Xu Ya.(2009).V (p) and V (p)/V (s) structures in the crust and upper mantle of the Taiwan region, China.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,52(7),975-983.
MLA Li ZhiWei,et al."V (p) and V (p)/V (s) structures in the crust and upper mantle of the Taiwan region, China".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 52.7(2009):975-983.

入库方式： OAI收割

来源：地质与地球物理研究所

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