摘要
台北凹陷是具有双层结构的压扭性复合凹陷，前三叠纪为拉张型凹陷，三叠纪－第四纪为挤压型凹陷。断裂和构造在凹陷东区呈北东向雁行排列，在凹陷西区呈北西向雁行排列。各背斜构造有三条主断裂，为三期构造运动所造成。台北凹陷的背斜构造可分为基底卷入断裂型、基底隆起型、盖层滑脱型和差异压实型。其中断裂型背斜又分半扇形断裂控制亚型、聚敛复合亚型、错开离散亚型和叠复亚型。含油气评价以凹陷中心地区侏罗系为最好，次为各生油凹陷的周围地区，再次为山前带的前缘地区及局部斜坡带。
Taibei sag is considered to be a compresso-shear compound sag with dual structures, which was a tensional onedurng pre-Triassic period or a compressional one during Triassic to Quatcrnary period. Echelon fractures and struc-tures strike NE the eastern part and NW in the western part. Three major fractures resulting from the three periodsof tectonic movements are present on each anticline. anticlines in Taibei sag can be divided into four types: anticlinesof basement-convoluting fault, basement uplift, superifical decollement and differential compaction. Furthermore,faultng anticline can subdivided into four secondary types: semi-fan fault-controlled anticline, convergence com-pound anticline, dislocation and divergence anticline, and overlapping anticline. The Jurassic at the center of the sagis the most prospective formation, next is adjacent area to oil generation sag followed by the from of foreland and lo-cal slope zone.
出处
《新疆石油地质》
CAS
CSCD
北大核心
1994年第3期201-207,共7页
Xinjiang Petroleum Geology
关键词
吐哈盆地
台北凹陷
构造格架
油气
Turpan-Hami basin Tabei sag Tectonic framework Jurassic Hydroarbon evalua-tion
