| Top and bottom plate name | Rock type | Average thickness/m | Petrographic description |
| basement layer | siltstone | 17 | Light gray, off-white, thickly laminated, coarse-grained structure, jagged fracture, hard |
| direct Top | siltstone | 8 | Light gray, off-white, thickly laminated, fine-grained structure, moderately fissured, hard. |
| a coal seam | coal | 12.1 | Coal, stable - more stable seams |
| direct bottom | shale | 4.9 | Grayish black, dark gray, thinly laminated, semihard |