【摘要】 通过对冀中拗陷晋县凹陷及邻区束鹿、前磨头凹陷的构造及其演化特征和石油地质特征分析,认为晋县凹陷基本构造特征为:"南北分区,东西分带",其形成和演化可分为孔店—沙四期(Ek—Es4)、沙三—沙二期(Es3—Es2)和沙一—东营期(Es1—Ed)3个阶段;冀中拗陷南区构造演化和石油地质特征自西向东具有凹陷规模由大变小,次级构造单元由宽变窄,形成时期由早变晚,下第三系烃源岩层位数由多变少、时代由老变新、资源量由富变贫,次级横向构造带比较发育且有逐步由强变弱的趋势等规律。最后探讨了南区构造演化的形成机制,认为南区诸凹陷的演化与衡水横向变换构造带演化密切相关。更多还原

【Abstract】 The research on tectonics evolution and petroleum geology of Jixian sag and its adjacent areas in Jizhong depression shows that Jinxian sag could be divided to be south area,central area and north area by secondorder transfer zones from south to north,and three belts could be seen clearly from west to east and the periods of tectonic formation and its evolution consist of EkEs4,Es3Es2 and Es1Ed.And the characteristics of tectonic evolution and petroleum geology in the south of Jizhong depression from west to east are as follows:① the sag scale grows smaller and second order tectonic units grow narrower;② the formation period becomes later;③ in Paleogene period,the source rock layers become less and newer and the source quantity becomes barren;④ secondorder transfer zones are very common and have the tendency of becoming weaker.The mechanism of tectonic evolution is also discussed.It shows that the evolution of the series of sag in the south of Jizhong depression is tightly related to the evolution of Hengshui transfer zone.更多还原