【摘要】 通过大量地面地质、地震和非地震资料的综合解释,分析了准南前陆冲断带的构造分段特征。认为乌鲁木齐—米泉断裂和红车断裂等盆内大型基底断裂是控制构造分段的主要因素,其形成演化决定了构造分段特征的出现或消失;盆缘调节构造是造成次级构造分段的主要原因。准南前陆冲断带构造分段对该区主要烃源岩与生储盖组合的形成及分布、对油气成藏期等方面具有重要的控制作用。更多还原

【Abstract】 Characteristics of structural segmentation of the foreland thrust belt in the southern margin of Junggar basin were studied on the basis of a comprehensive analysis of geological outcrops as well as seismic and geophysical data.It is concluded that the main factors inducing structural segmentation in this area are attributed to large-sized basement faults,namely,Urumqi-Miquan fault and Hongche fault,whose formation and evolution determined separately the appearance and/or disappearance of the characteristics of structural segmentation,and that the main factors inducing structural sub-segmentation are attributed to the transfer zones which extend in the directions of NW and NE-NEE in the basin margin.The structural segmentation has played an important role in controlling the hydrocarbon in such aspects as the formation and distribution of source rock and source-reservoir-cap assemblages,and the periods of migration and accumulation of hydrocarbon within different structural segments.更多还原