|
|||||
|
|
Modern movement and deformation in the South China Sea shown by GPS measurements and numerical simulation |
|
| Authors: | WANG Jing LUAN Xiwu YU Roger Z |
| Institution: | 1. Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071,China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China 2. Institute of Marine Geology, China Geological Survey, Qingdao 266071, China 3. Editorial Office of Chinese Journal of Oceanology and Limnology, Institute of Oceanology, Chinese Academy of Sciences,Qingdao 266071, China |
| Abstract: | To better understand the crustal deformation of the South China Sea Basin, we produce a mechanically consistent 2-dimensional model for observing regional velocity field in the South China Sea (SCS). We studied the dominating regional tectonic stress field by geodetic measurements and finite element analysis, the spatial variations of velocity field and strain field, and relative movements among different blocks, using a 2-dimensional model describing crustal deformation of the South China Sea Basin. Strain results show that the SCS is extending at present. The western part of SCS is opening gradually in NWSE direction from its northern margin to the south, but the eastern part of SCS is opening gradually from its central part to the north and south. In addition, we analyzed the plate kinematics to the deformation of the SCS, using a two-dimensional finite element model. Our simulations results are well explained by available geodetic data. The movement of SCS is resulted from interactions among Indian Plate, Pacific Plate, Philippine Sea Plate, and Eurasian Plate. |
| Keywords: | stress field deformation mechanical model |
| 本文献已被 万方数据 SpringerLink 等数据库收录！ | |