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根据井田钻探揭露资料对徐州矿务局庞庄煤矿张小楼井深部(-750m以下)山西组9煤赋存特征进行了分析研究,并指出:①9煤沉积相为三角洲前缘基础上发育的泥炭沼泽相沉积;②煤层分岔是由古地势造成的;③煤层缺失受薄是因晚期分流河道冲刷作用所致.
According to the data disclosed in field drilling, the coal deposit characteristics of 9th coal in Shanxi Formation of Zhangzhuangou deep well (below -750m) in Pangzhuang Coal Mine of Xuzhou Mining Bureau were analyzed and analyzed. It is pointed out that: ①9 sedimentary facies is developed on the basis of the delta front Peat swamp facies deposition; ② Coal seam bifurcation is caused by paleo-terrain; ③ The lack of thin coal seam is due to the scouring effect of late distributary channel.