摘要
东海陆架是欧亚大陆板块东南部的延伸;中新生代的构造应力由张→压→扭多次转变,拉张应力形成一系列断陷,并向拗陷演化,巨厚的新生代岩层,是油气生成的基础;扭动应力形成并改造局部构造,影响和改变油气的移聚;北东向的构造格局是几大板块相互运动造就的构造景观;区域断裂是东西分带、南北分块的边界,亦是控制盆地发育的主导因素;盆地的结构自下而上为:变质基底、断陷、拗陷。
East China Sea Shelf is the southeast extension of Eurasian plate.Tectonic stress in Mesozoic-Cenozoic varied in nature from extensional,then compressional to wrench style.The extensional stress resulted in development of series of grabens which evolved gradually into depressions and in which Cenozoic sediments filled providing important source rocks for the basin.Wrench stress however occurred later,altered local structure development,affected and governed migration and accumulation of hydrocarbons. Tectonic trend oriented NE was due to interaction of several plates. Regional faults are the important factor contributing the basin development. Basinal architecture accordingly consists of,from the basement upward,metamorphic basement,synrift infill,postrift infill and open marine sediments.
出处
《中国海上油气（地质）》
1990年第5期1-7,共7页
China Offshore Oil and Gas(Geology)
