【摘要】 北西向断层是济阳坳陷成生较早的重要的控盆断裂,并对后期构造的产生具有重要的影响。本文在济阳坳陷桩西潜山地区三维地震资料精细解译的基础上,识别出了一条北西向断层,将其命名为古桩西断层,并分析了该断层的叠加改造过程和改造方式,以及对桩西潜山形成的影响。研究结果表明:古桩西断层经历了印支期挤压逆冲、燕山期中期负反转,燕山末期正反转和喜马拉雅期再次负反转,最终被分割成5条独立活动的断层;古桩西断层的叠加改造方式有直接反转、通过应变硬化带反转和被断层错段3种方式;古桩西断层的长期活动控制着北西向桩西潜山的形成以及次一级近南北向雁列状潜山的产生。更多还原

【Abstract】 NW-trending faults are important basin-controlled fault in the Jiyang Depression,which generated earlier and have an crucially impact on post-construction. In this paper,based on the detailed interpretation of 3D seismic data of Zhuangxi Buried Hill in the Jiyang Depression,a new NW-trending fault was identified and named for ancient Zhuangxi Fault. This fault reconstruction of processes and styles,as well as the influence on the formation of the Zhuangxi Buried Hill,were analyzed. The results show that the ancient Zhuangxi Fault experienced thrust movement during Indosinian Period,negative inversion in the middle stage of Yanshanian,positive inversion in the late Yanshanian,again negative inversion in the Himalayan,eventually ancient Zhuangxi Fault was divided into five independent faults. Ancient Zhuangxi Fault had three kinds of remolding styles : direct inversion,inversion by strain hardening zone and cutting off by strike-slip fault. The long time activities of Ancient Zhuangxi Fault controlled the formation of NW-trending Zhuangxi Buried Hill and en-echelon NS-trending hills internally.更多还原