f Investigation for geothermal sources on Lesvos Island (Greece) by means of resistivity and P-wave seismic techniques

Combined geophysical investigations including deep Schlumberger resistivity soundings, microearthquake monitoring and velocity inversion of local earthquake arrival time data have been performed on Lesvos island . Lesvos island, situated in the northeastern part of Aegean Sea, belongs to a Tertiary island arc system and is certainly affected by a regional anomaly of geothermal gradient, whose extent and importance are as yet unknown . The tectonics of the island, together with the occurence of some thermal springs, indicate that geothermal conditions could exist on it . The areas between villages Petra Árgenos, Kalloni - Stipsi and Polychnitos area can be considered of potential interest . The joint geophysical survey aimed to delineate areas through the tectonic structure of which there are indications of thermal fluid circulation .