【摘要】 <正> 前言晚中生代末或早新生代初以来,冀中坳陷在引张直力作用下,发育了一系列正、正平移断层或阶梯式断块,以其形成的古潜山油气藏十分引人注目。因此,长期来,人们认为冀中坳陷不可能产生逆断层的看法,居主导地位。近年来,地震勘探、钻井资料越来越丰富,为认识和判别断层的性质创造了极为有利的条件。本文利用地震信息和钻井数据等实际资料,提出文安斜坡坡脚处的马西断层(中段),应属于在沉积建造发育的同时,伴以破裂变形所形成的逆同生断层。逆同生断层,系指在断陷盆地中,由于盆地轴部的边沉降、边沉积,盆更多还原

【Abstract】 On the basis of the analysis of seismic data gathered in the Jizhong depression,the author concludes that Maxi fault at the foot of Wenan slope is a contemporaneous thrust fault which grew along with formation development be- cause of the slide caused by the gravity.The relation between the contempo- raneous thrust fault and hydrocarbon accumulation is also expounded,and the general morphological model for contemporaneous thrust fault is finally described at the end of this paper.更多还原