准噶尔盆地西北缘走滑断层特征及油气地质意义  

Characteristics of Strike-Slip Faults in the Northwestern Margin of Junggar Basin and Their Geological Significance for Petroleum

作　　者：徐怀民[1] 徐朝晖[1] 李震华[2] 刘得光[2] 陈永军[2] 刘巍[2] 

机构地区：[1]中国石油大学(北京)资源与信息学院,北京昌平102249 [2]中国石油新疆油田分公司勘探开发研究院,新疆克拉玛依834000

出　　处：《高校地质学报》2008年第2期217-222,共6页Geological Journal of China Universities

基　　金：国家自然科学基金(40772088);中国天然气股份公司重点科技攻关项目“准噶尔盆地西北缘滚动精细勘探(2005-2009)”资助

摘　　要：准噶尔盆地西北缘前陆冲断带构造样式复杂多样,除规模较大的逆断层外,还发育一系列北西向的走滑断层。以高分辨率三维地震资料为基础,对断裂体系分析表明克拉玛依—百口泉地区的走滑断层可分为花状走滑断层和简单走滑断层两类,二者在成因、剖面特征等方面具有明显差别。研究结果认为走滑断层对油气的运聚成藏具有重要的双重控制作用,即能作为有效的运移通道,又能够起遮挡作用而形成圈闭。The foreland thrust belt has complex and various structural styles. Besides the large-scale reverse faults, there are a series of north-west strike-slip faults. Based on high-resolution seismic data, the foreland fault systems in the NW margin of Junggar basin were analyzed. It reveals that the strike-slip fault system of Ke-Bai area can be divided into two types, namely the flower strike-slip faults and the simple strike-slip faults, which have obvious differences in genesis and section features. The strlke-slip faults have dual influence on hydrocarbon migration and accumulation. They can not only be effective migration channels for petroleum, but also can seal petroleum.

关 键 词：前陆冲断带 走滑断层 花状构造 准噶尔盆地 

分 类 号：P618.130.2[天文地球—矿床学]