该矿区为上二迭系地层组成一复向斜,在主勘对象C煤组约300米的区间内,含煤2层以上,其中主要可采4层,次要2层,由于沉积环境和后期构造影响,煤层厚度多不稳定,分叉、复合、尖灭现象较普遍,如C5煤层的厚度变化由0~8．4米,各主煤层平均厚度 The mining area is composed of a syncline in the Upper Second Permian strata. Within the interval of about 300 meters in the C coal group of the main surveyed object, there are more than two coal layers, of which 4 are main recoverable layers and 2 are secondary layers. Due to the sedimentary environment and Post-tectonic effect, the coal seam thickness is more unstable, bifurcation, compound, pinch out the phenomenon is more common, such as the thickness of the C5 coal seam from 0 to 8.4 meters, the average thickness of the main coal seam