Geoelectric Structure of Meshkinshahr Geothermal Area Deduced from 2D Magnetotelluric Models

A 2D inversion of magnetotelluric data was carried out from geothermal resources at Mount Sabalan in the north west of Iran. The algorithms used in the MT study are the 2D models of Occam’s inversion. Profile ِA with 13 MT stations was passed through Gheynarge village and aligned NW-SE around the west flank of the volcanic mountains of Sabalan. 2D inversion of magnetotelluric indicates a zone of very low resistivity nearby Gheynarge springs. The geothermal model was considered with a 100 ohm-m cap overlaying a 5 ohm-m reservoir in a 400 ohm-m half-space. The response of the regarded model confirms the 2D Occam’s inversion obtained from MT data in the west of Mount Sabalan. The Combination of 2D inversion from three profiles, which crossed on the A profile, indicates a 2. 5D interpretation of Meshkin-Shahr’s geothermal site’s reservoir.