| Code | Litotype | Description |
| 1 | Quaternary deposits | Quaternary sediments loose or weakly cohesive consisting of edge deposits as actual alluvion and river and lake terraces. |
| 2 | Consolidated Quaternary deposits | Quaternary age deposits cemented behavior lithoid or semi lithoid. |
| 3 | Flysch deposits | Structurally complex formations with arenaceous-silty lithology. |
| 4 | Marly limestones | Marly limestone, calcareous stratified rocks with the predominance of carbonate lithologies. Layers with of a few decimetres thickness. |
| 5 | Marls and clay marls | Marls and clay marls, stratified rocks with the prevalent presence of argillaceous lithologies. Layers with decimeter thickness. |
| 6 | Limestones, marls and clays alternations | Limestones, marls and clays alternations structurally complex formations with alternating lithologies clay-marl and limestone. |
| 7 | Stratified limestone | Stratified limestone, Limestone and calcareous marl layered thickly, Limestone in layers of a few decimeter thick or benches. |
| 8 | Dolostones | Dolomite, Dolomitic and dolomitic limestone with detrital behavior often appeare brecciate and powdery for tectonic causes. |