“…The calculated SiO 2 -Adiabatic temperature (196 °C) is considerably lower than the calculated Na-K temperatures (241 °C-254 °C) and the temperature calculated with iGeoT (230 ± 11 °C) is intermediate. The lower reservoir temperatures inferred from the SiO 2 geothermometer may be the result of polymerization and precipitation of silica, enhanced by the high salinity of the waters (e.g., Kley et al, 2017). The range of temperatures calculated is within the range of temperatures calculated by previous studies (e.g., Lahsen, 1976a, Lahsen, 1976bGiggenbach, 1978;Muñoz and Hamza, 1993;Cortecci et al, 2005;Tassi et al, 2005), and measured in the geothermal wells (Giggenbach, 1978;Lahsen and Trujillo, 1976).…”