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Mineralogical composition of the shale samples.
| Component | Content (wt%) | Component of clay mineral | Relative content (wt%) |
|---|---|---|---|
| Quartz | 43.2 | Illite/semctite | 43.6 |
| Calcite | 4.4 | Illite | 32.6 |
| Feldspar | 6 | Chlorite | 13.6 |
| Dolomite | 7.4 | Kaolinite | 10.2 |
| Clay mineral | 39 |
