Several sandstone outcrops, generally attributed to the Macigno Formation, were sampled in a wide area located between the Tyrrhenian coast and the Pratomagno-Casentino region. It includes the Calafuria, Piombino, Grossetano, Chianti, Pratomagno and Casentino outcrops. The age of the studied sandstones ranges from Late Oligocene to Early Miocene: these results are in good agreement with those from the northern transect (Cinque Terre - Val Gordana - Mt. Sillara) and the southern one (Castiglion Fiorentino - S.Sepolcro). The sandstone composition, in particular the Fine Grained Lithic Composition, allows to differentiate three petrofacies with decreasing volcanic grain content through time.
I Flysch Oligo-Miocenici della trasversale Toscana meridionale-Casentino: dati biostratigrafici e petrografici / Costa, E.; Di Giulio, A.; Plesi, G.; Villa, Giuliana; Baldini, C.. - In: ATTI TICINENSI DI SCIENZE DELLA TERRA. - ISSN 0394-0691. - 39:(1997), pp. 281-302.
I Flysch Oligo-Miocenici della trasversale Toscana meridionale-Casentino: dati biostratigrafici e petrografici.
VILLA, Giuliana;
1997-01-01
Abstract
Several sandstone outcrops, generally attributed to the Macigno Formation, were sampled in a wide area located between the Tyrrhenian coast and the Pratomagno-Casentino region. It includes the Calafuria, Piombino, Grossetano, Chianti, Pratomagno and Casentino outcrops. The age of the studied sandstones ranges from Late Oligocene to Early Miocene: these results are in good agreement with those from the northern transect (Cinque Terre - Val Gordana - Mt. Sillara) and the southern one (Castiglion Fiorentino - S.Sepolcro). The sandstone composition, in particular the Fine Grained Lithic Composition, allows to differentiate three petrofacies with decreasing volcanic grain content through time.| File | Dimensione | Formato | |
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