摘要
西湖凹陷是东海陆架盆地重点生油气凹陷之一，它在新生代经历断陷、坳陷、区域抬升和区域沉降四个阶段，在纵向序列上表现为二次明显的海侵和一次海退，一次水进和一次水退。由于构造运动的不均匀性，沉积基地的起伏，多物源和水进水退多次旋回，在凹陷不同时期，不同部位形成不同的沉积相，这一切与油气的生成、聚集有着极为密切的关系。
Xihu Depression is one of the important petroliferous depressions in the shelf basinof the East China Sea,Its Cenozoic history can be divided into four stages:rifting, de-pressing,regional uplifting and subsiding.Two major transgressions,a regression,a wa-ter-level rise and a fall can be seen in vertical sequence,Because of nonequilibrium of tec-tonic movement,undulating sedimentary base,multiple material sources and multiple cy-cles of water rises and falls,different sedimentary facies accur at different parts of thedepression,Oil and gas generation and accumulation are closely related to the sedimenta-ry facies.
出处
《海洋地质与第四纪地质》
CAS
CSCD
北大核心
1994年第2期63-70,共8页
Marine Geology & Quaternary Geology
基金
"七五"国家重点科技攻关项目
关键词
东海
沉积相
油气藏
新生代
East China Sea Cenozoic sedimentary facies oil and gas
