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新疆天山构造带中的中小型山间盆地是在海西期褶皱基底之上形成的。它们经历了晚二叠世断陷湖、三叠一侏罗纪坳陷型湖泊-沼泽及白垩纪一新生代收缩型山间盆地3个成盆期。燕山运动控制着盆地次一级构造单元的格局及局部构造的形成。喜马拉雅运动控制着局部构造和断裂的最后定型以及油气运移、聚集成藏。这些山间盆地具有形成中小型油气田的基本石油地质条件,应引起我们的高度重视。
Small-sized mountain basins in the Tianshan tectonic belt of Xinjiang were formed on the Hercynian fold basement. They experienced three basin-forming stages during Late Permian rift lacustrine, Triassic-Jurassic depression lacustrine-marsh and Cretaceous-Cenozoic contractive mountain basins. The Yanshan movement controls the pattern of the secondary tectonic units and the formation of local tectonics in the basin. The Himalayan movement controls the final shaping of local structures and faults as well as hydrocarbon migration and accumulation. These mountain basins have the basic petroleum geological conditions for forming small and medium-sized oil and gas fields and should arouse our attention.