南大巴山造山带构造特征及油气勘探方向  

THE TECTONIC FEATURE AND OIL & GAS EXPLORING FIELD IN THE OROGENIC ZONE OF SOUTH DABASHAN MOUTAIN

作　　者：胡明[1] 陈蓉[1] 陈华生[1] 邓绍强[1] 常健民[1] 

机构地区：[1]西南石油大学资源与环境学院

出　　处：《天然气工业》2008年第11期26-28,共3页Natural Gas Industry

基　　金：四川省重点学科建设项目(编号:SZD0414)的资助

摘　　要：为了在四川盆地东北部南大巴山地区寻找新的油气勘探领域,打开造山带前缘油气勘探的新局面,采用现代构造地质分析方法,根据野外地质调查资料,结合研究区内其他相关基础地质资料,对研究区的构造基本变形样式的几何学特征进行了分析,探讨了研究区构造形迹的变形机制和成因,发现区内存在多种形式的褶皱构造样式和断层系统,并且它们在横向上具有不均匀性,垂向上具有多个推覆体,呈叠瓦状分布,向下变缓交于震旦系主滑脱层面,从而决定了研究区未来油气勘探方向应该在毛垭断层西南侧靠近四川盆地一带。In order to explore oil and gas resource in the Dabashan Mountain,the northeastern Sichuan basin,this study adopted the analyzing methods of the advanced tectonic geology according to outdoors investigation data to analyze geometry feature of the basic deformation styles in region of interest and probe into the deformation mechanism and genesis of structural form.The result showed that a series of folds and fault system exists in the region of interest,being inhomogeneous in horizontal direction,and having several imbricated thrust nappes in vertical direction and going gradually downward to meet with the decollement zone of the Sinian.This study concluded that the exploring field in the region of interest should be the southwest side of the Maoya fault,near the Sichuan basin.

关 键 词：构造特征 变形(地质) 油气勘探 造山运动 大巴山 南 

分 类 号：P618.13[天文地球—矿床学] P618.130.2[天文地球—地质学]