ARENARIE DI DIANO
(Tortoniano) =
Diano Sandstones
(Tortonian):
The soils are rich in sand with less clay and limestone.
SURFACE N°2
MARNE DI SANT’AGATA FOSSILI =
Sant’Agata Fossil Marls (Tortonian-Messinian):
The soils present a consistent amount of clay and silt.
SURFACE N°3
FORMAZIONE DI LEQUIO
(Serravalliano) =
The Lequio Formation (Serravallian): alternates sand and marls, resulting in soils rich in silt, clay and limestone.