INTEGRATED GEOPHYSICAL INVESTIGATION AROUND THE BRACKISH SPRING OF RINA, KALIMNOS ISL., SW GREECE

A. Stampolidis1,4, P. Tsourlos1, P. Soupios4, Th. Mimides2, G. N. Tsokas1, G. Vargemezis1 and A. Vafidis3

1 Department of Geophysics, School of Geology, Aristotle University of Thessaloniki, GR 54124, Thessaloniki, Greece; E-mail: tsourlos@lemnos.geo.auth.gr

2 Department of Land Reclamation and Agricultural Engineering, Laboratory of Hydraulics, Agricultural University of Athens, Athens, Greece.

3 Department of Mineral Resources Engineering, Technical University of Crete, Chania Greece.

4 Laboratory of Geophysics and Natural Hazards, Technological Educational Institute of Crete, Chania, Greece

 

Abstract: Integrated geophysical studies were carried out around the brackish spring of Rina, Kalimnos island, SW Greece, in order to determine the special hydrogeological conditions at the survey area. A high-resolution geophysical investigation comprising electrical tomography, seismic refraction and very low-frequency (VLF) electromagnetic induction methods was carried out on a site of saline water contamination. The geological and tectonic settings of the area are evaluated for clarifying the hydrogeological conditions. Further, the saline water intrusion is investigated and its depth is determined. Thus, the limit of fresh water production rate not causing potential pollution problem can be estimated.