Abstract:
A detailed 3.5 kHz profiling survey from the Inner Thermaikos Plateau, located in the NW Aegean Sea, revealed Holocene deltaic sedimentary sequences. These sequences consist of four seismic facies: a) stratified (i.e., foresets of late Holocene); b) transparent (bottom sets); c) reflector C (representing the beginning of the Holocene); and d) reflector D (a pre-Holocene erosional surface). The mean sedimentation rates range from 0.05 to 2.5 m/1000 yrs, while the maximum sedimentation rates (94 mm/yr) are observed in the modern foreset beds of the river Axios. Radiocarbon analyses of corals from shallow marine sediments indicate that there was a transgression of the Inner Thermaikos Plateau around 12.000 yrs B.P