Abstract
The Shahin Dezh Region is one of several areas prospective for geothermal energy in the West Azerbaijan Province of Iran. Hot spring spewing fluids at 30 °C is regarded as the first surface signature for the existence of a subsurface geothermal reservoir in this region. To determine the geothermal energy potential for the region we carried out geological, geochemical and geophysical surveys in the study area. Field observation, thin section studies and XRD analysis reveal the existence of a zone of pervasive hydrothermal alteration in this region. Based on the geochemical analysis, the hydrothermal spring fluids falls into the bicarbonate water family. The results of geothermometric calculations indicate that geothermal reservoir temperature ranges between 40 and 51 °C. Euler deconvolution of geophysical data over the region suggests the reservoir is shallow. This shallowness together with groundwater mixing are factors that played a role in decreasing the reservoir temperature. Integrating geological, geochemical and gravity studies revealed that geothermal reservoir contains 2.3 × 107 kJ thermal energy.
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