用断层形变资料探讨滇西实验场区现今构造活动  

EXPLORATION OF MODERN TECTONIC MOVEMENT IN WYEPSA BY DATA OF FAULT DEFORMATION

作　　者：张兴华 李珊[1] 宋金玲[1] 

机构地区：[1]云南省地震局

出　　处：《地震研究》1994年第4期362-369,共8页Journal of Seismological Research

摘　　要：本文以１９８２－１９９１年滇西实验场及外围地区跨断层短基线（水平）、短水准（垂直）的监测资料为窗口，讨论了场区现今构造活动是以水平位错为主，同时滇西北东构造带以北地区应力场方向自１９９０年以来发生了变化（近南北向），认为这一趋势变化可能是未来地震形势的转移。Taking the data of fault-crossing short-base(horizontal) and shortlevelling(vetical) observed in WYEPSA 1982-1991 as a window, the modrn tectonic movements in the WYEPSA have been studied. The study showed that horizontal dislocation was dominant, the direction of stress field in north-east belt of West Yunnan had changed since 1990 which could be considered as the transition of the future seismic tendency.

关 键 词：构造运动 滇西 地震实验场 断层 

分 类 号：P315.2[天文地球—地震学]