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Table 5 Estimated reservoir temperatures (°C) for the Şavşat thermal waters using silica geothermometers (SiO2 = 125.8 mg/L)

From: Conceptual model of the Şavşat (Artvin/NE Turkey) Geothermal Field developed with hydrogeochemical, isotopic, and geophysical studies

Geothermometers Equations References Calculated temp.
SiO2 (ά Cristobalite) t = 1000/(4.78 − logSiO2) − 273.15 Fournier (1977) 100
SiO2 (Quartz) t = 1309/(5.19 − logSiO2) − 273.15 Fournier (1977) 150
SiO2 (Quartz steam loss) t = 1522/(5.75 − logSiO2) − 273.15 Fournier (1977) 144
SiO2 (Quartz steam loss) t = 1264/(5.31 − logSiO2) − 273.15 Arnorsson et al. (1983) 121
SiO2 (Quartz steam loss) t = 1164/(4.9 − logSiO2) − 273.15 Arnorsson et al. (1983) 143
SiO2 (Chalcedony) t = 1032/(4.69 − logSiO2) − 273.15 Fournier (1977) 125
SiO2 (Chalcedony) t = 1112/(4.91 − logSiO2) − 273.15 Arnorsson et al. (1983) 122