塔里木盆地满加尔坳陷的演化过程及石油地质特征  

EVOLUTION AND PETROLEUM GEOLOGY OF MANJIAR DEPRESSION IN TARIM BASIN

作　　者：黄太柱[1] 马慧明[1] 

机构地区：[1]西北石油地质局地质大队

出　　处：《新疆地质》1996年第2期97-110,共14页Xinjiang Geology

基　　金："八五"攻关项目

摘　　要：以盆地演化为背景，将满加尔坳陷的盖层演化过程划分为三大构造旋回、五个演化阶段：１．震旦－泥盆纪克拉通盆地旋回，２．石炭－二叠纪类前陆盆地旋回，３．中新生代前陆盆地和再生前陆盆地旋回；①震旦纪－早奥陶世克拉通裂解伸展阶段，②中奥陶世－泥盆纪挤压挠曲盆地阶段，③石炭－二叠纪克拉通内坳陷盆地阶段；④三叠－侏罗纪前陆盆地阶段，⑤白垩纪－新生代再生前陆盆地阶段．通过对“三套两类”生油岩（寒武－奥陶系、石炭系、三叠－侏罗系）及局部构造特征的研究，认为满加尔坳陷是烃类的生成供给区，而不是烃类聚集成藏的有利地区。油气勘探的重点是南、北及西侧斜坡地带的地层圈闭。The evolution of Tarim basin was teken as a background to subdivide the evolution of the covers of Manjiar depression into three tectonic cycles and five evolution stages. The former includes SiniaDevonia craton basin cycle, Carboniferous-Permian foreland basialike cycle,and Meso-Cenozoic foreland basin and regenerated foreland basin cycle;the latter includes: ①Sinia-Early Ordovician craton disintegration and extension stage, ②Middle Ordovician-Devonian basin compression and curving stage, ③CarboniferousPermian craton inner depresson stage,④Triassic-Jurassic foreland basin stage, and ⑤Cretaceous-Cenozoic regenerated foreland basin stage. The study of oil source rocks of Cambrian - Ordovician, Carboniferous and Triassic -Jurassic, and local structures shows the Manjiar depression is a place where hydrocarbons are formed and supplied, but not a favorite place where hydrocarbons are accumulated to form oil pools. The oilgas prospection should focus on stratigraphic traps on the southern,northern and eastern slope zones.

关 键 词：满加尔坳陷 盆地演化阶段 生油岩 有机质成熟度 地层圈闭 

分 类 号：P618.13[天文地球—矿床学]