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松辽东缘在晚侏罗世一早白垩世期间发育一系列ＮＥ向含煤断陷盆地。主要含煤层位是晚侏罗世沙河子组和早白垩世大羊草沟组。盆地的充填特征具有明显的规律性．基本上为三段式。反映在拉张裂陷－萎缩抬升的背景下盆地的演化特点。聚煤作用发生在特定的演化阶段。对盆地充填序列的研究有助于指导能源资源的勘探。
During the Late Jurassic-Early Cretaceous, a series of NE-bearing coal-bearing fault basins developed along the eastern margin of Songliao. The main coal seams are the Late Jurassic Shahezi Formation and Early Cretaceous Dayao Caogou Formation. Basin filling characteristics have obvious regularity. Basically for the three-stage. Reflecting the evolution of the basin in the context of extensional rifting - atrophy uplift. Coalification occurs at a specific stage of evolution. Research on basin fill sequences can help guide the exploration of energy resources.