Submerged Neolithic landscapes off Franchthi Cave: the measurements from the Terra Submersa expedition and their implications

Presented by Julien Beck, Dimitris Sakellariou, and Despina Koutsoumpa
In track Posters

Systematic, high resolution seafloor and subseafloor geological-geophysical survey was conducted in August 2014 with the aim to (1) map in high-resolution the seafloor, the sedimentary deposits and the sub-seafloor structure of the Eastern Argolic Gulf, (2) map precisely and reconstruct paleo-shorelines and submerged prehistoric landscapes of the Late Pleistocene and Early Holocene when the sea-level was lower than present and (3) to search for and discover potentially surviving remains of prehistoric human presence or occupation on the submerged landscapes close to Franchthi Cave.
The survey was part of the University of Geneva TERRA SUBMERSA expedition, in collaboration with the Hellenic Centre for Marine Research, the Greek Ephorate for Underwater Antiquities, PlanetSolar, the Laténium (Switzerland), and the Swiss School of Archaeology in Greece.
Preliminary results of the processing and seismic stratigraphic and structural interpretation of the Boomer and Chirp subbottom profiles, the swath bathymetric data and the side scan sonar records yield a wealth of information on the location, depth and nature of submerged shorelines of Late Pleistocene and Early Holocene age and on the numerous morphological features and environmental conditions of the submerged Neolithic and pre-Neolithic landscapes in the Bay of Kiladha, off Franchthi Cave.
These results, and their implications for the Franchthi Neolithic, are discussed in the light of previous research (geological-geophysical surveying and coring) in the Bay of Kiladha.