Upper Cenozoic stratigraphy and paleogeographic evolution of Myrtoon and adjacent basins, Aegean Sea, Greece

The region appears to have progressively subsided since the Miocene. Myrtoon basin and Saronikos Gulf were lake basins in the Messinian that were flooded to form deep-water marine basins during the basal Pliocene transgression. South Evoikos and Argolikos basins were progressively flooded during the Pliocene and early Quaternary. In most areas, deep-marine basins filled principally with hemipelagic sediment, but a submarine fan developed in the early Pliocene in the northern Myrtoon basin and fan deltas built into the basin from the east and southwest. Opening of marine 'gateways' as a result of subsidence led to enhanced oceanographic circulation and the formation of regional erosion surfaces at basin margins.