摘要
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。
There were some NE trending coal bearing fault basins of Late Jurasaic toEarly Cretaceous occurring along the eastern margin of Songliao basin. The major coalbearing sedimentary rock systems are Shahezi formation(J_3sh)and Dayangcaogouformation(K_1dy).The filled sequences of these basins exhibit three stage sedimentation.which associate with an evolution history of the basins from extensional rift to shrinkinguplift. The coal accumulation process took place during their certain periods.Thus,thestudy of the filled sequence of the basins is very important to energy resourcesexploration.
关键词
含煤盆地
充填序列
松辽东缘
能源勘探
煤矿床
Mesozoic coal bearing basin,basin-filled,sequences,eastern marginof Songliao basin
