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yi ning ao xian gou zao yan hua yu bian xing te dian fen xi
Author(s): 
Pages: 11-14
Year: Issue:  2
Journal: Petroleum Geology and Engineering

Keyword:  伊宁凹陷构造演化构造变形逆冲推覆作用;
Abstract: 通过伊犁盆地伊宁凹陷钻井、地质露头、地震、地质综合研究,平衡剖面分析等研究认为,自中生代以来所划分的印支期弱挤压断坳盆地形成、燕山早中期的类前陆挤压盆地形成与发展、燕山晚期的微不均衡整体升降改造、喜山期强烈逆冲推覆不均一湖盆发展等四个构造演化阶段中,印支-燕山期的构造演化是区内二叠系塔姆其萨依组和三叠系白碱滩组烃源岩的油气生成、运聚的最关键时期,所划分的四个构造变形区中霍城-曲鲁海弱变形带和察县-Y2井中等变形带是研究区内地层保存较为完整、圈闭较为发育、油气运聚条件最为有利的区带,是下步油气勘探的主要方向.
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