关键词: 中国, 地块运动, 角速度, 活断层, 位移速率

Abstract: The relative motion of crustal blocks in China and surounding area has been investigated using a geometric method,which was engaged in study of plate motion by Minster & Jorden (1978). Although the crustal block is a distinct geological element from the lithospheric plate either in their involved depths or in the driving forces,bu both of them are comparatively rigid blocks separated by mobile belts. From the slip rates along active faults on the block boundaries,the Euler poles and angular velocities of 14 blocks were calculated using least square method. The calculated displacement velocities of the crustal blocks indicate that the slip rates along active faults are determined by the motion of their adjacent blocks,and the collision between Eurasia and Indian plates plays dominant role in crustal deformation in this area.

Key words: China, Crustal block motion, Angular velocity, Active fault, Slip rate