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Table 2 Reservoir temperature predicted by various solute geothermometers

From: Development of an updated geothermal reservoir conceptual model for NW Sabalan geothermal field, Iran

Region Spring type Geothermometer
Na–K (Arnorsson et al. 1983; Fournier 1979) Na–K–Ca corrected for Mg (Fournier and Potter 1979) Na–K–Ca–Mg (Nieva and Nieva 1987) K–Mg (Giggenbach 1988; Fournier 1991) Quartz (Fournier 1977; Fournier and Potter 1982; Arnorsson 1985) Chalcedony/silica (Fournier 1977; Arnorsson et al. 1983) Binary diagram (Giggenbach 1988; Tassi et al. 2008)
NW Sabalan Na–Cl, SO4–Na, SO4–Ca 218–244 °C 106–125 °C 111–125 °C 88–124 °C 144–159 °C 121–135 °C 230–240 °C