Fig. 2

Schematic geological map of the Val Marecchia Nappe and underlying units after Di Staso et al. (2009) who modified the map of Boccaletti et al. (1987). Post-nappe deposits: 1. Holocene-Upper Pliocene deposits, 2. Lower Pliocene deposits. Terrains unconformably resting on the Val Marecchia Nappe: 3. Lower Pliocene deposits, 4. Messinian-Upper Tortonian deposits, 5. Monte Fumaiolo Sandstone and San Marino Limestone Fms. (Serravallian-Langhian). Older units of the Val Marecchia Nappe: 6. Monte Senario Sandstone and Campaolo Sandstone Fms. (Lower Miocene, taken as a part of the Sub-Ligurides by some authors), 7. Argille Varicolori Fm. (Aquitanian-Upper Oligocene), 8. Monte Morello Fm. (Oligocene), 9. “Basal Complex”: Sillano, Villa a Radda, Cercetole and Pugliano Fms. (Upper Eocene to Upper Aptian), 10. Palombini Shale, Calpionella Limestone, Diaspri Fms., ophiolitic slices (Upper Aptian-Middle Jurassic). 11. Cervarola Unit: Vicchio Marl and Cervarola Sandstone Fms. (Serravallian-Aquitanian). Umbro-Marchean Units: 12. Argille a Colombacci and Gessoso-solfifera Fms. (Messinian), 13. Ghioli di letto, Schlier and External Marnoso-Arenacea Fms. (Lower Messinian-Serravallian), 14. Internal Marnoso-arenacea Fm. (Lower Tortonian-Langhian)