通过对子洲地区含煤地层山西组进行岩性、古生物、沉积构造、地球化学特征等研究,得出子洲地区山西组发育曲流河三角洲沉积体系,以三角洲前缘沉积亚相为主,进一步可划分为水下分流河道、分流间湾、间湾沼泽、席状砂四类沉积微相。 Through the study of lithology, paleontology, sedimentary structure and geochemical characteristics of the Shanxi Formation in the coal-bearing strata of Zizhou area, we can conclude that the sedimentary system of meandering river delta was developed in Shanxi Formation in Zizhou area, It can be further divided into four types of sedimentary microfacies: underwater distributary channel, shunt bay, bay swamp and sand-like sand.