Posters P1. Geoarchaeological Research in the Harbours of Ancient Korkyra (Corfu, Greece) Kalliopi Baika (Aix-Marseilles University, National Center for Scientific Research (CNRS), Aix- en-Provence, France; Ephorate of Underwater Antiquities, Hellenic Ministry of Culture and Sports, Athens, Greece) Diamanto Rigakou (Ephorate of Antiquities of Corfu, Hellenic Ministry of Culture and Sports, Corfu, Greece) Garoufalia Metallinou (Ephorate of Antiquities of Corfu, Hellenic Ministry of Culture and Sports, Corfu, Greece) Andreas Vött (Institute of Geography, Johannes Gutenberg-Universität Mainz, Mainz, Germany) Peter Fischer (Institute of Geography, Johannes Gutenberg-Universität Mainz, Mainz, Germany) Claudia Finkler (Institute of Geography, Johannes Gutenberg-Universität Mainz, Mainz, Germany) The ancient harbour-city of Corfu at the entrance of the Adriatic Sea was a prominent Archaic thalassocracy and one of the first Greek city-states to acquire a substantial war fleet of triremes in the beginning of the fifth century BC. She was also strategically located for controlling the commercial sea-lanes that connected the Greek world with the Adriatic Sea and the west already since the Archaic period. Geo-strategical aspirations led to the development of substantial harbour infrastructure to support thriving commerce and naval supremacy at sea from early times. However, the evolution of the harbour system and in general the maritime façade of the ancient city is today obscure and altered due to significant geomorphological changes, severe human impact and heavy urbanism since antiquity, as well as during the Byzantine period and up to modern times. An interdisciplinary geoarchaeological approach was initiated in 2013 (continuing into 2017) in order to decipher this complicated harbour and coastal environment. The project is led by the Ephorate of the Antiquities of Corfu, in collaboration with the Institute of Geography (University of Mainz) in association with the Centre Camille-Jullian (CNRS/Aix-Marseilles University). The methodology combines the study of the archaeological stratigraphy in the harbour and coastal zones with geological investigations involving extended vibracoring campaigns, conducted in conjunction with electrical resistivity measurements and the development of other innovative methodologies. The ancient city developed on a fortified peninsula and was served by several harbour basins. Initial results demonstrate that these basins were gradually altered by a combination of geological changes (uplift, siltation, relative sea-level change, etc.) and human interventions (dredging), which resulted in being in part or completely concealed today under the urban tissue. Moreover, the high tectonic activity of the area and the manifold coastal dynamics make landscape reconstruction for different periods of time complicated. Nevertheless, this knowledge is essential for comprehending the layout of the first settlement and the gradual transformation of the urban space of this major Mediterranean harbour-city throughout the centuries. This presentation will focus on the preliminary results of the 2016 field campaign. P2. Erosional Notches, Pits, and Potholes Offshore: Signs of Past Coastlines Alyssa Pietraszek (Department of Marine Geosciences, University of Haifa, Haifa, Israel) Beverly Goodman-Tchernov (Department of Marine Geosciences, University of Haifa, Haifa, Israel) Dani Nadel (The Zinman Institute of Archaeology, University of Haifa, Haifa, Israel) Oded Katz (Geological Survey of Israel, Jerusalem, Israel) During the last glacial maximum, expansive areas that are now submerged were exposed aerially. Much of this territory would have been inhabitable, or at least utilized by people. Consequently, it is presumed, and well accepted, that a significant number of prehistoric sites are now under water. While efforts have been made to investigate and locate these sites, progress is slow due to the technical difficulties of finding and identifying the more inconspicuous archaeological remains, and the sheer scale of the endeavor. Site discoveries have often been the result of chance encounters or salvage excavations following storm exposures. One possible means to narrow the effort is to better determine the location of Late Pleistocene and Early Holocene coastlines during periods of stable sea level, when people might have had the opportunity to establish near-shore permanent villages or seasonal camps. Erosional notches, pits, and potholes have been useful as sea-level indicators across the Mediterranean. These markers form during periods of stable sea level and are submerged when sea level rises, becoming a potential indicator of past sea level. In Israel, such submerged features were recently recognized along the current coastline and parallel to it at approximately 2.5m water depth within eolianite bedrock, and in some cases are as large as 3m in diameter. Further offshore, there are continued sequences of exposed eolianite ridges at increasing depths. The study presented here aims to demonstrate that by investigating these deeper ridges and searching for notches, pits, and potholes, it may be possible to establish past areas of stabilized coastline and identify potential locations of submerged prehistoric sites. P3. Defining the Levantine Maritime Neolithic: GIS Analysis of a Maritime Cultural Landscape Chelsea Wiseman (Department of Archaeology, Flinders University, Adelaide, Australia) The Levantine Neolithic (9600-4500 BC) was a period of innovation and adaptation in human history, with extensive development of agriculture, as well as increased sedentary lifeways. Though a considerable amount of current archaeological knowledge is based upon the terrestrial Neolithic narrative, the maritime narrative of the Neolithic is now receiving increased attention. This study seeks to address questions such as whether a distinct maritime culture can be identified in the Levantine Neolithic, and what types of material culture can be considered indicators of a maritime society. To analyse the composition of a maritime society, GIS has been used to model the spatial relationships of known maritime Neolithic sites in the Levant. By establishing this overview, the concept of maritime cultural landscapes may be explored in order to contribute to discussion of the maritime Levantine Neolithic. P4. Maritime Landscapes of the Northeast Aegean: Coastal Evolution and Changing Boundaries Areti Chalkioti (Independent Scholar, N. Kallikrateia, Chalkidiki, Greece) The northeast Aegean has been a controversial area in the history of archaeological research. The quest for Troy and its harbors since the nineteenth century (and even earlier in travelers’ reports), the emergence of early urban centers, the hot debate regarding the opening of the straits and the connection of the Mediterranean with the Black Sea, and most recently the discovery of Epipalaeolithic sites on the islands of Lemnos and Imvros (Gökçeada) and a Middle Palaeolithic site on Ayios Efstratios, have kept a diachronic interest in the archaeological discussions. What is always apparent in the debate – although most of the times not in an explicit manner – is the maritime landscape, being as it is a place of interaction between man and the sea, covering a wide range of issues such as sea-level changes and costal evolution, the location of harbors, sea routes, and maritime trade. This paper addresses changes that the maritime landscape of the northeast Aegean Sea has undergone over the last 20ka years. It focuses on the implications of sea-level rise since the Last Glacial Maximum (LGM), and the diachronic evolution of the mainland coastline, the corridors, narrow channels and the islands that comprise this area. It also focuses on nodal points for coastal maritime voyaging during the Late Pleistocene-Middle Holocene period. Reconstructions of the coastal configuration of the northeast Aegean in different time periods based on the global sea-level trends and on sonar charts depicting the local High Definition (HD) bathymetry, are used as the baseline of the analysis. Key questions are: maritime crossings and the use of maritime space by early coastal foragers in this area, spanning the last millennia of the Palaeolithic till the beginning of the Neolithic period; Neolithic and Bronze Age seafaring; submerged landscapes and the identification of potential coastal settlements. P5. Marine Geophysical Explorations in the Saronic Gulf, Greece: The Test Case of a LBA Wreck Site off Modi Islet Maria Geraga (Laboratory of Marine Geology and Physical Oceanography, Department of Geology, University of Patras, Patras, Greece) George Papatheodorou (Laboratory of Marine Geology and Physical Oceanography, Department of Geology, University of Patras, Patras, Greece) Christos Agouridis (Hellenic Institute of Marine Archaeology, Athens, Greece) Myrto Michalis (Hellenic Institute of Marine Archaeology, Athens, Greece) Heleni Kaberi (Institute of Oceanography, Hellenic Centre for Marine Research, Anavyssos, Greece) Margarita Iatrou (Laboratory of Marine Geology and Physical Oceanography, Department of Geology, University of Patras, Patras, Greece) Dimitrios Christodoulou (Laboratory of Marine Geology and Physical Oceanography, Department of Geology, University of Patras, Patras, Greece) Elias Fakiris (Laboratory of Marine Geology and Physical Oceanography, Department of Geology, University of Patras, Patras, Greece) Michael Prevenios (Laboratory of Marine Geology and Physical Oceanography,