摘要
根据基底性质分析,探讨了东海大陆边缘新生代沉积盆地的形成演化与成因机制.重磁异常、岩浆活动、重矿物组合等研究结果表明,东海陆架第三纪盆地的基底性质与大陆裂谷盆地的基底性质类似.东海陆架沉积盆地具有断陷盆地的结构特征,具多物源供给条件,断裂活动控制了盆地的发展演化,并且与中国东部地区断陷盆地一样,也经历了断陷-断拗-拗陷的演化进程.
Along the continental margin in East China Sea, the origin and evolution of Tertiary sedimentary basins are discussed, based on analyses of basement nature. The studies on gravity and magnetic anomalies, magmatism and heavy mineral assemblages have indicated that the Tertiary basins in East China Sea are similar in basement nature with the continental rift basins. These Tertiary shelf basins are characterized by a rifted_basin framework, multiple provenances and a fault_controlled evolution history, and have experienced an evolution of rifting_fault sagging_sagging, as the eastern China rifted basins have.
出处
《中国海上油气（地质）》
2003年第1期25-28,56,共5页
China Offshore Oil and Gas(Geology)
基金
国家重点基础研究发展计划(973计划)
关键词
东海
大陆边缘
基底性质
断裂构造
沉积盆地
油气地质
East China Sea
continental margin
basement nature
fault structure
sedimentary basin
