摘要
本文通过茅东断裂带构造岩定向标本的组构研究,探讨断裂带的动力学特征,其结果表明:该断裂帝具有多期活动特点;以走滑为主兼有逆冲和旋转运动学性质;晚更新世以来,经历了SE30°和NE80°先后二次不同方向主压应力作用:早期差异应力为1000—1300巴,晚期约250—450巴.
By the determining and analysing of tectonite fabric on the Eastern fault zone of Maoshan authors have explored the dynamic characteristics of the fault zone.Several points can be coveres as: 1.The fault zone is repeatedly active from geological time upto now. 2.A strike slip mode is dominant,and on other hand the fault is of thrust fractures with rotation concurrently. 3.The fault zone underwent two times tectonic stresses since Epipleistocene,the axis direction S30°E of early principal compresive stress and N 80°E in later period,the difference stress values were 1000-1300 bar and 250-450 bar respectively.
出处
《地震学刊》
CSCD
1989年第2期23-29,共7页
Journal of Seismology
