摘要
根据菲律宾海的演化 ,指出菲律宾海板块的特点 :以俯冲边界为主 ,易于产生形变 .将理论结果与地球物理、地质以及GPS测量结果进行比较 ,发现菲律宾海板块内部及边界有明显形变 .讨论了菲律宾海板块与欧亚板块的相互作用 ,指出其相互作用有明显的分段性 .在南海海槽一带有较强的挤压 ,在琉球海沟一带由于两板块耦合较弱及冲绳海槽的开裂 ,没有形成对东亚大陆的挤压 ;台湾附近两板块碰撞 ,对中国东南形成较强的挤压 ;在菲律宾群岛一带形成两板块间的复杂变形带 ,使两板块间的作用减弱 .
The present boundaries of the Philippine Sea plate with surrounding plates was given by the evolution history of the Philippine sea and the earthquake distribution around the Philippine sea. The deformation inside the Philippine Sea plate and along the boundary of PH EU was studied by comparising the observed data by the methods of Geophysics, Geology and GPS with the theoretical results calculated from Euler parameter of Philippine Sea plate. The interaction between the Philippine Sea and Eurasian plates was analyzed using the geophysical, geological and GPS data. It is shows that the interaction is different in different part of the boundary. There is stronger compression on Eurasian plate at Nankai trough, while there is no compression at Ryukyu trench where an extension may exist, caused by the secondary mantle flow. The collision of two plates in Taiwan Region causes strong compression in southeast part of Chinese continent. There is a deformed belt in Philippine islands between Philippine Sea and Eurasian plates, so the interaction between the two plates is weakened and there is no influence on the southern China Sea from the Philippine Sea plate. [
出处
《地球物理学报》
SCIE
EI
CSCD
北大核心
2002年第2期188-197,共10页
Chinese Journal of Geophysics
基金
国家重点基础研究发展规划项目 ( 95 -1 3-0 4 -0 6 )
国家科委"九五"攀登计划预选项目 ( 95 -专 -0 5 )
