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应用沉积体系,体系域与层序分析等现代沉积学研究方法,系统地建立了全盆地株罗纪沉积相划分方案。采用等时地层单元确定了侏罗纪各期沉积相模式.以缓坡沉积体系模型和陡坡沉积体系模型揭示侏罗纪盆地的充填及演化历史。认为,准噶尔盆地侏罗系烃源岩以下、中侏罗统半深湖-深湖相的暗色泥岩及湖湾沼泽环境的煤岩生烃条件最好;最有利的储集砂体发育在河、湖相变带。河湖相交替变化频繁的地区,也是非构造圈闭最发育的地区,是盆地侏罗系油气勘探最有利的地区。
By applying the methods of modern sedimentology, such as sedimentary system, system tract and sequence analysis, the division scheme of Zhuzilian sedimentary facies in the whole basin has been systematically established. Isochron strata units were used to determine sedimentary facies patterns of the Jurassic. Based on the model of gentle slope depositional system and steep slope sedimentary system, the filling and evolution history of Jurassic basin are revealed. It is concluded that the Jurassic source rocks in the Junggar Basin are below the Jurassic semi-deep lake-deep lake facies in the dark mudstones and the coal seams in the Bay Swamp environment have the best hydrocarbon generation conditions. The most favorable reservoir sand bodies are developed in rivers, Lake phase transition zone. Areas where the lakes and lakes alternate frequently are also the most developed areas with non-structural traps and are the most favorable areas for oil and gas exploration of the Jurassic in the basin.