【摘要】 苏北盆地构造圈闭主要为断鼻、断块,构造圈闭的成因与区域性伸展 走滑作用有关,按成因可以划分为4种类型:①凹陷及斜坡地区所形成的断鼻、断块群;②扭动断裂带伴生的张性断块;③扭动断裂带转换部位的断鼻、断块;④以伸展作用为主的断阶带复杂断块。扭动构造对苏北盆地的油气藏类型及分布规律具有重要的控制作用。图11参11更多还原

【Abstract】 Structural traps are mainly fault-noses and fault blocks in the Subei Basin. The origin of the structural traps is related to the regional extension and sliding.The traps could be classified as 4 types: fault noses and block groups in sags and slopes; extension and strike-sliding blocks at both sides of a strike-sliding fault; nose-like blocks and blocks at transition part of the strike-sliding fault; and complicated blocks at zone between the two major controlling faults for extension. Strike-sliding structures are the key role for controlling the distribution of oil pools within the basin.更多还原