准噶尔盆地南缘东段、东北缘盆山耦合研究  

Study on Basin-Mountain Coupling in East Segment of Southern Margin and Northeastern Margin of Junggar Basin

作　　者：李涛[1] 张进[1] 卢苗安[1] 

机构地区：[1]中国地震局地质研究所,北京100029

出　　处：《新疆石油地质》2008年第6期680-686,共7页Xinjiang Petroleum Geology

基　　金：国家自然科学基金项目(40572116);新疆油田公司科技项目共同资助

摘　　要：针对准噶尔盆地东部多单元的复杂变形格局以及准东与博格达山、卡拉麦里山及东北缘山系的多山系盆山关系的特点,探寻它们之间动力学联系、建立盆山构造耦合模式,预测有利油气运移和聚集的区带。认为,在昌吉-准东存在一个东西向挤压推覆构造系统,并且在晚石炭世-新生代长期持续活动;准东与周缘山系,是由起始于不同时间、但一直在持续或断续活动的三个构造系统,即加里东-海西期造山带形成的北西向构造带,晚石炭世-中新生代东西向挤压推覆构造和新生代博格达-准东-卡拉麦里山盆山组推覆构造,以时间上穿插或同时活动、联合形成的复杂盆山构造耦合;断弯-断展褶皱和逆冲断裂叠瓦扇构造,是准东、乌伦古地区构造变形的基本样式,复杂地区还出现捩断层和转换构造;创建了准东与周缘山系的盆山构造耦合模式,并预测了10个有利于油气运聚的区带。The eastern Junggar basin is in muhi-units and complex deformed framework and has basin-mountain relationship among eastern Junggar basin, Bogda mountain, Karameli mountain and mountains of northeastern margin of Junggar basin. This paper presents their dynamic relationships, develops their basin-mountain coupling models and predicts their favorable zones for petroleum migration and accumulation. It is recognized that 1）there exists one east-west trending compressional and nappe structural system in Changji-eastern Junggar basin, which undergone long-term activities from Late Carboniferous to Mesozoic and Cenozoic; 2）the eastern Junggar basin and its nearby mountains are composed of three tectonic systems which began to take shape at different periods and underwent continuous or discontinuous activities, they are the Caledonian-Hercynian NW trending tectonic belt, the EW trending nappe structure developed from Late Carboniferous to Mesozoic and Cenozoic, and the Cenozoic Bogda mountain-eastern Junggar basin-Karameli mountain nappe structure. These tectonic systems occurring and developing in different times or overlapping during their development form complex basin- mountain coupling in these areas; 3）the fauh bend fold, fault propagation fold and imbricate thrust faults are the main types of structural deformation in eastern Junggar basin and Wulungu region, in the complex area the tear faults and the transfer structures also occurred. In addition, 10 favorable areas for petroleum migration and accumulation are provided in this paper besides the models of basin-mountain coupling among eastern Junggar basin and its marginal mountains.

关 键 词：准噶尔盆地 天山 陆内造山 盆山耦合 

分 类 号：TE111.2[石油与天然气工程—油气勘探]