【摘要】 对漠河盆地中侏罗统绣峰组、二十二站组、额木尔河组及开库康组露头剖面详细沉积学研究,查明漠河盆地绣峰组为冲积扇、扇三角洲及湖泊沉积,二十二站组和额木尔河组为辫状河三角洲和湖泊沉积,开库康组为冲积扇、扇三角洲及湖泊沉积,湖底扇和湖泊相在各组均有发育。从绣峰组到开库康组,具有冲积扇-扇三角洲-湖泊—辫状河-辫状河三角洲-湖泊—冲积扇-扇三角洲-湖泊的沉积演化规律。这一沉积演化规律决定了漠河盆地中侏罗统生油气层、储层、盖层均较发育,具有油气勘探潜力。更多还原

【Abstract】 The detail sedimentation study of the Middle Jurassic outcrops consisting of Xiufeng, Ershierzhan, Emuerhe and Kaikukang formations respectively, indicated that alluvial fan, fandelta, braided river delta, lake floor fan and lacustrine facies were developed from Xiufeng to Kaikukang formations in the Middle Jurassic of the Mohe Basin. The alluvial fan and fandelta facies were developed in the Xiufeng formation, the braided river delta in the Ershierzhan and Emuerhe formations, alluvial fan and fandelta in the Kaikukang formation, and lake floor fan and lacustrine facies in all above formations. The sedimentary evolution from Xiufeng to Kaikukang formation was as alluvial fanfandeltalacustrine to braided riverbraided river deltalacustrine to alluvial fanfan deltalacustrine. Such a sedimentary evolution resulted in the development of source rocks, reservoirs and cap rocks. Therefore, there is petroleum potential in the Middle Jurassic of the Mohe Basin .更多还原