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苏南煤矿区地层从上至下有:第四系冲积层,第三系砾岩层、三迭系青龙灰岩、上二迭系硅质层、菊石层、海相层及煤系、下二迭系孤峰层和栖霞灰岩层段。第三系上部是灰色至灰绿色泥岩、粉砂岩,中部红色及紫红色粘土质中粒至细粒砂岩,下部是以灰岩成份为主的砾岩层段。在正常情况下砾岩底部距上1煤层200～300米。该砾岩厚度大,
The strata in the southern Jiangsu coal mine area are: Quaternary alluvial layer, Tertiary conglomerate layer, Triassic Qinglong limestone, Upper Permian siliceous layer, ammonite layer, marine layer and coal series, Two Diego Department Goupian Qixia limestone and layers. The upper part of Tertiary is gray to greenish-gray mudstone, siltstone, central red and purple clay middle grain to fine-grained sandstone, and the lower part is conglomerate section mainly composed of limestone. Under normal conditions, the bottom of conglomerate is 200 ~ 300 meters away from the upper seam 1. The conglomerate thickness,