| CPI | Carbon Preference Index |
| ARO | Aromatic compounds |
| ASPH | Asphaltene compounds |
| EOM | Extractable organic matter |
| HI | Hydrogen Index |
| LGOM | Legnica–Głogów Copper District |
| MIN C | Mineral Carbon |
| OI | Oxygen Index |
| PC | Pyrolytic Carbon |
| PDB | Pee Dee Belemnite |
| PI | Production Index |
| RC | Residual Carbon |
| RES | Resin compounds |
| SAT | Saturated Hydrocarbons |
| TOC | Total Organic Carbon |
| TSR | Thermochemical Sulfate Reduction |
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