岛弧构造的垂直形变场与水平位移场及其构造运动和地震活动特征  

Deformation and Displacement Fields of Island Arc Tectonics,Movement and Seismicity

作　　者：罗伟[1] 罗灼礼[1] 陈尚平[1] 

机构地区：[1]国家地震局数据信息中心,国家地震局分析预报中心

出　　处：《中国地震》1995年第4期351-360,共10页Earthquake Research in China

摘　　要：本文根据水平构造应力作用，推导了弧形构造的理论垂直形变场、水平位移场和应力场，进而对全球性的岛弧构造带在构造运动、地震活动和震源机制等方面的特征给出了新的解释；提出岛弧等弧形构造主要是在弧形构造位移场、应力场作用下逐渐形成的，而大洋板块的俯冲作用是次要的。In the paper, the vertical deformation and horizontal displacement fields of the arcuate tectonics are theoretically derived from the horizontal stress, the characterictics of the tectonic movement, seismicity and focal mechanism for the island arc zones in the world are reasonably interpreted.It is suggested that the arcuate tectonics including the island arc are gradually formed under the action of their own deformation and displacement fields, and the subduction of the oceanic plates is less important for it.

关 键 词：岛弧构造 垂直形变场 水平位移场 地震活动性 

分 类 号：P315.5[天文地球—地震学] P736.14[天文地球—固体地球物理学]