Analisi di facies del Calcare Massiccio (Giurassico inferiore, Gola di Frasassi, Appennino settentrionale)

The purpose of this thesis is to describe the facies of the Calcare Massiccio formation, and to define its depositional environment, at Cava Gola della Rossa, Northern Apennines. First of all, carbonate facies were observed in the field, and a series of Calcare Massiccio about 10,40 meters long was logged. Then, 17 thin sections were prepared for microfacies analysis. Six different facies were identified in the field: Gastropod Mudstones, Pisoids and Fenestral Packstones, Oncoidal lenses Packstones, Peloids Grainstones, Pisoids Rudstones, Fenestral Mudstones. There is a ciclical repetition of facies, the association of which makes up for a peritidal depositional cycle. The wall of Cava Gola della Rossa is thus made of a superposition of carbonate periti dal cycles.