CAJ | 학술논문

科特迪瓦盆地是西非几内亚湾北段一个东西向的具拉分性质的复杂盆地,盆地具有转换大陆边缘与被动大陆边缘叠置的性质.盆地经历了3期构造演化阶段:阿普特期以前为前裂谷期;阿普特期—塞诺曼期早期为裂谷期;塞诺曼期至今为后裂谷期.盆地3期演化相应地建立了不同类型的沉积体系.科特迪瓦盆地已发现的油气聚集区带集中分布在北缘雅克维尔槽地南侧的东西向正向构造带上.油气成藏模式主要是“裂谷层序型成藏模式”和“被动大陆边缘层序型成藏模式”.圈闭类型以构造型、构造—不整合型和地层型为主.
과특적와분지시서비궤내아만북단일개동서향적구랍분성질적복잡분지,분지구유전환대륙변연여피동대륙변연첩치적성질.분지경력료3기구조연화계단:아보특기이전위전렬곡기;아보특기—새낙만기조기위렬곡기;새낙만기지금위후렬곡기.분지3기연화상응지건립료불동류형적침적체계.과특적와분지이발현적유기취집구대집중분포재북연아극유이조지남측적동서향정향구조대상.유기성장모식주요시“렬곡층서형성장모식”화“피동대륙변연층서형성장모식”.권폐류형이구조형、구조—불정합형화지층형위주.
@@@@The C?te D′Ivoire Basin is an east-west oriented and elongated basin located in the north of the Gulf of Guinea, the West Africa. The basin is characterized by both transcontinental margin and passive continental margin. The tectonic evolution is divided into 3 phases: pre-rift phase before Aptian, rift phase from Aptian to the early Cinemania, and syn-rift phase ever since Cinemania. Different sedimentary systems form during differ-ent phases. The discovered hydrocarbon reservoirs mainly locate in the east-west oriented positive structures in the south of the Jacqueville trough. There are 2 accumulation patterns: rift stratigraphic one and passive conti-nental margin stratigraphic one. Traps are of structural, structural-unconformity and stratigraphic types.