摘要
东营凹陷作为济阳坳陷一次级构造单元,现今的构造格局由四条NWW向断裂-背斜构造带和四条NE向断裂-背斜构造带叠合而成,可以看作是二个大型的分别受陈南铲式断裂带和利津断裂带所控制的伸展断弯褶皱体系,先后经历了NNE-SSW向和NW-SE向区域引张作用的叠加及NE向的右旋走滑作用的改造,具有NW-SE向和NNE向的双向伸展及右旋走滑变形的基本特点,这种构造格局及其演变特征控制了油气的生成、运移、聚集成藏过程和油气藏的分布,构造类圈闭是主要的油气保存单元,两个方向的八条断褶构造带成藏条件较好,是油气藏主要聚集区带。
Dongying sag is a secondary structure unit of Jiyang depression, its current structural framework could be regarded as two expanding fault-fold systems controlled by Chennan listric fault zone and Lijin listric fault zone respectively, with each system consisting of four fault-anticline belts. Their evolution history could be divided into three stages as NNE-SSW extension, NW-SE extension and NNE dextral-slipping. This mechanism greatly influenced the process of hydrocarbon generation, migration and accumulation. As a result, structural traps are the most import hydrocarbon preservation units and constitute most of the reservoirs located along the fault-anticline belts.
出处
《大地构造与成矿学》
EI
CAS
CSCD
北大核心
2007年第3期281-287,共7页
Geotectonica et Metallogenia
基金
中国科学院边缘海地质重点实验室二期创新课题(GIGCX-03-05)资助
关键词
东营凹陷
构造转型
断裂-背斜构造带
引张
油气藏
Dongying sag
structural transition
fault-anticline belt
expansion
reservoir
