新疆北缘和什托洛盖盆地构造与含油气远景  

Tectonic Evolution and Hydrocarbon Potential in Heshituoluogai Basin in Northern Margin of Xinjiang

作　　者：马宝军[1,2] 曾文光 于福生[2] 漆家福[2] 

机构地区：[1]石家庄经济学院资源学院,石家庄050031 [2]中国石油大学石油天然气成藏机理教育部重点实验室,北京102249 [3]南方石油勘探开发有限责任公司,广州510240

出　　处：《新疆石油地质》2009年第1期13-16,共4页Xinjiang Petroleum Geology

基　　金：国家自然科学基金项目(40372072);石家庄经济学院教学科研项目(200747)共同资助

摘　　要：通过新旧地震数据的对比和校正,应用盆地分析及盆山耦合的思想对和什托洛盖盆地及其周边进行构造解析;并应用平衡剖面技术了解盆地构造演化,得到以下认识:①和什托洛盖盆地是一个位于主逆冲带上盘的扭动-挤压型次生盆地,它起源于西伯利亚板块、哈萨克斯坦微板块、准噶尔微板块的相互碰撞与错动;②盆地早期演化从属于准噶尔地体,基底双重构造活动应早于晚三叠世,在此之前其作为准噶尔盆地的边界与内部是连通的;③盖层发育可分为四个阶段:初始发育期(T3-J1b)、快速沉积期(J1s-J2t)、整体沉降时期(K)和边界断裂复活时期(E-Q),其中侏罗纪为盆地的主要成盆期,也是构造变形最大的时期。According to the comparison and correction between latest and old seismic data, this paper presents the whole structural interpretation and evolution of Heshituoluogai basin using basin analysis theory, basin-mountain coupling idea and balanced cross section technique, it is concluded that： 1） Heshituoluogai basin originated from the collision and dip offset among Siberia plate, Kazakhstan micro-plate and Junggar micro-plate is a secondary compresso-shear basin situated on the hanging wall of major thrust belt; 2） the evolution of Heshituoluogai basin is subject to Junggar terrain, the double tectonic activities of its basement should be earlier than Late Triassic before which it was connected with Junggar basin as a boundary of it, and 3） the basin cover development can be divided into 4 stages： initial development stage （T3-J1b）, quick deposition stage （J1s-J2t）, whole subsidence stage （K） and boundary faulting revival stage （E-Q）, of which Jurassic is the main basin-formed period associated with largest structural deformation.

关 键 词：和什托洛盖盆地 盆山耦合 逆冲推覆 构造演化 油气成藏 

分 类 号：TE111.2[石油与天然气工程—油气勘探]