通过对准南煤田小西沟矿区钻孔煤心煤样分析,对主要含煤层西山窑组煤岩学、煤相特征、演化规律及控制因素进行探讨,为研究区煤炭资源勘探、开发、煤层对比及聚煤规律分析等提供理论依据。在层序地层分析基础上,运用煤的岩石学、煤化学分析方法,推测研究区西山窑组煤层中显微组分组成以镜质组和惰质组为主,壳质组含量极低。湖扩体系域煤层主要以湿地草本沼泽相为主,高位体系域下部煤层以湿地草本沼泽相为主,上部煤层以潮湿森林沼泽相为主。 Through the analysis of the coal samples in the Xiaoxigou mining area of ​​South Coalfield, the coal rock characteristics, evolution characteristics and controlling factors of the Xishanyao Formation, a major coalbed, are discussed. For the purpose of exploration, development and comparison of coal resources in the study area And coal law analysis provides the theoretical basis. On the basis of sequence stratigraphy analysis, using the petrology and coal chemical analysis methods of coal, it is speculated that the microscopic composition of the Xishanyao coal seam in the study area is dominated by vitrinite and inertinite, and the content of chitin is extremely low. Mainly in the wetland marsh swamp facies, the lower coalbed of the lake expansion system is dominated by wet herbaceous marsh facies and the upper coal seams are dominated by humid forest swamp facies.