冀中坳陷东部西倾断裂的构造负反转过程

Negative structure inversion of the west-dipping faults in the eastern Jizhong depression

冀中坳陷东部西倾断裂在早第三纪发生构造负反转。采用零点、距离 位移曲线和生长指数等定量分析方法 ,讨论了断裂的构造负反转过程。结果表明 ,断裂的主反转期是早第三纪早期 ,构造反转结束于早第三纪中晚期。负反转构造对潜山油气藏的形成具有重要意义。

The west dipping fault of the eastern Jizhong depression created negative structure inversion in the initial periods of early Tertiary. By means of the null point, growth index analysis and displacement distance plot, the authors discussed the process of negative structure inversion. The results of discussion show that the main inversion period of the fault occurred in early Tertiary and the structure inversion ended in the middle and late periods of early Tertiary. The negative inversion structure is of importance for the formation of buried hill reservoirs.