Microfacies and Depositional Conditions of Jurassic to Eocene Carbonates: Implication on Ionian Basin Evolution

In order to decipher the paleo-depositional environments, during Late Jurassic Early Eocene syn-rift stage, at margins of Ionian basin, two different areas with exposed long sequences have been selected, Kastos Island (external margin) and Araxos peninsula (internal margin), were examined by means microfacies analysis biostratigraphy. On Island, based on lithological sedimentological features, following depositional environments recognized: an open marine/restricted environment prevailed (“Pantokrator” limestones), changing upwards into deep-sea slope Cretaceous (Vigla limestones). The Upper (Senonian limestones) is characterized a environment, whereas Paleogene, toe conditions prevailed. peninsula, Lower deposits (“Vigla” accumulated in environment; ones deposited or conditions. Paleocene limestones correspond environment. changes occurred Cretaceous, they Paleocene/Eocene, related stages tectonic activity basin from east west.