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A DENSE MAPPING OF ELECTRICAL CONDUCTIVITY ON THE ISLANDS OF MILOS/GREECE.

Objective


A series of geophysical research projects was carried out on Milos (Greece) to test and improve the various exploration techniques and strategies on the known geothermal reservoir of the island. 8 research teams from 4 countries (France, United Kingdom, Greece and the Federal Republic of Germany) executed field experiments in joint efforts between 1984 and 1988. Magnetotelluric (MT) methods, audio megnetotelluric (AMT) methods and active audio magnetotelluric (AAMT) methods, electric selfpotential methods and seismological methods were applied to achieve a better understanding of the correspondence of the internal structure and goemetry of the geothermal reservoir with the change of relevant physical parameters.

The experimental phase is over and some of the final reports are available. There is a very close relation between the observed field parameters and the seismic activity with the contours of the geothermal reservoir of Milos.

Following the Travale Testsite experiments (1979 to 1983), the Milos Testsite projects within the Commission's third research and development programme is the second venture of this type. The results are in press as Special Issue of GEOTHERMICS, Pergamon Press.
BOTH ASPECTS MAY BE HANDLED QUANTITATIVELY AND WILL BE CONSIDERED IN MORE DETAIL THEORETICALLY (B. HOBBS, EDINBURGH AND P. WEIDELT, BRAUNSCHWEIG). EXPERIMENTALLY THE NECESSARY MEASUREMENTS WILL BE PERFORMED BY SOME OF THE LONGER PERIOD MT STATIONS WHICH WILL BE INSTALLED PERMANENTLY AS BASE STATIONS.

IT IS INTENDED TO COVER THE WHOLE ISLAND WITH APPROXIMATELY 150 MEASURING POINTS WHICH IMPLIES A SPACING OF 1 KM BETWEEN THE POINTS. EACH OF THE THREE UNIVERSITIES WILL MEASURE ON 50 SITES OF THEM.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

FREIE UNIVERSITAET BERLIN
Address
Kaiserswertherstrasse 16-18
Berlin
Germany

Participants (2)

BR DEUTSCHLAND.
PROF. DR. PR. WEIDELT
Address

Dr. G. Musmann