【摘要】 松辽东缘石碑岭中生代含煤盆地含煤沉积形成于盆地演化的中期阶段。沼泽体系中粗碎屑（河流）沉积与含煤细碎屑（沼泽）沉积构成了含煤沉积旋回。火山沉积事件对７、６含煤旋回层的形成及煤的聚积具有控制作用。含煤旋回层的研究对层序地层学的亚层序的划分是重要的。更多还原

【Abstract】 oal-bearing deposits including five coal cycles were formed in the middle stage of the evolution of Shibeiling basin in the eastern margin of Songliao. The coal cycles are made up of coarsed (fluvial) and fine (swamp) deposits,and the formation and coal accumulation of 7th and 6th cycles were controlled by tectonic (volcanic)-sedimentary factors. The study of coaf cyeles is signifieant for dividing parasequences in the analyses of sequence stratigraphy.更多还原