Possible Relationships between Seep Carbonates and Gas Hydrates in the Miocene of the Northern Apennines

Figure 1

Seep carbonates of the northern Apennines (stars). Numbers 1–11 refer to outcrops enclosed in the Epiligurian deposits, 12–15 in the Tuscan Units, and 16–50 in the Marnoso-arenacea and related slope mudstones. The outcrops considered in this work are 10 referring to Sasso Streghe, Le Prade, Montandone; 25 to Castagno d’Andrea; 47 to Montepetra and 48 to Poggio delle Campane (modified from [15]).