f A contribution on the study of the production mechanism of solfide mineralization self potential

The production mechanism of sulphide mineralisation self potential is still open to question. The majority of geophysicists support basically the dipole model. According to this model electrochemical reactions take pIace in the system of the mineralized body and the surrounding medium and as a resuIt an excess of negative and positive charges (of the same magnitude) are formed at the upper and lower part of the ore body, respectively. Thus an electrical field (geobattery) is formed the potential of which can be measured at ground surface. There have been proposed various models to describe the electrochemical reactions which take place in and around the dipole (Sato-Mooney 1960, Habashi 1966, Thornber 1975, Bolviken 1979, Sivenas-Beales 1982.).