Quantitative interpretation of thermo-electric selfpotential anomalies due to a dipping sheet-like structure

Whenever water flows along a boundary of adjacent rocks with different thermoelectric coupling coefficient, a self-potential field (thermo-electric SP) may be produced, because of the difference in temperature between water and surrounding medium. According to Fitterman (1979), the SP field source can be described in terms of a series of current dipoles perpendicular to the boundary. This model of the polarised sheet has been often elaborated for SP prospecting of geothermal fields and the interpretation is usually carried out in space domain (Corwin et.al. 1981, Fitterman and Corwin 1982, Noutsis and Skianis 1987, Lagios and Apostolopoulos 1995).