贵州汪家寨矿,煤系为晚二迭世宣威组(狭义)和汪家寨组,含煤三十余层。上覆岩系为下三迭系砂页岩及灰岩;下伏岩系为晚二迭世早期的玄武岩组及早二迭世茅口阶、栖霞阶的厚层灰岩。矿区区域地质构造概况见图1。汪家寨矿位于大河边向斜的北部,地层产状随井田不同部位而异。目前开拓范围内,煤层走向大致为北东40°,倾向南东,平均倾角 Guizhou Wangjiazhai Mine, coal series late Late Diego Xuanwei group (narrow sense) and Wangjiazhai group, containing more than 30 layers of coal. The overlying strata are sandstone and limestone of the Lower Triassic series. The underlying rock series are thick basaltic limestone of the Early Permian basalts and the Early Permian Maokou and Qixia gradients. Geological structure of the mining area shown in Figure 1. Wangjiazhai Mine is located in the north side of the river syncline, stratigraphy with different parts of the field varies. At present, within the scope of exploration, the coal seam is roughly 40 ° North East, with a tendency of easterly and average dip