摘要
利用微断裂擦痕的Etchecopar电算法,结合褶皱和共轭节理的研究,将灌阳地区的构造应力场分5期:按最大主应力方位第1期为84°～105°;第2期为120°～127°;第3期为12°～47°;第4期为298°～336°;第5期为67°～76°。其中,前两期产生于印支构造运动阶段,以褶皱作用为主;后三期产生于燕山构造运动阶段,以断裂作用为主。
Structure stress fields in Guanyang studied by 'Etchecopar computermethod' using microfault slickenside as well as folds and joints, may bedivided into five-period stress fields: the first 84°～105°, the second 120°～127°, the third 12°～47°, the fourth 298°～336°, the fifth 67°～76°in thedirection of major stress. The former two periods are mainly folding(Indo-China cycle), whereas the latter three periods are mainly faulting(Yanshanian cycle).
关键词
断裂
褶皱
地质构造
应力场
广西
fault
stress field
computing
Guanyang
Guangxi/Etchecopar Computer method
