应用高分辨率层序地层学的思路和分析方法 ,识别与分析了淮南煤田石炭二叠中短期基准面旋回 ,划分了中期基准面旋回类型。研究表明 ,含煤地层中的标志层和关键界面是中、短期基准面旋回划分的重要依据 ,而中、短期基准面旋回的划分对于进行高精度聚煤规律分析具有实际意义 Based on the idea and analysis method of high-resolution sequence stratigraphy, medium and short term basaltic cycles of Carboniferous Permian in Huainan coalfield are identified and analyzed, and the types of medium-level cycle are divided. The research shows that the marker layer and key interface in the coal-bearing strata are the important basis for the mid-short-term base-level cycle. The division of mid-short-term base-level cycles is of great practical significance for the high-precision coal accumulation