The chemistry of geothermal waters in Iceland. III. Chemical geothermometry in geothermal investigations

Geochemical characteristics of Na-Ca-Cl-HCO3 type waters in Arima and its vicinity in the western Kinki district, Japan.

“…From the Si02 versus Cl relationship given in Table 5, the silica content of this bottom water is cal culated to be 162 mg/1. Assuming the brine to be saturated with chalcedony and using the temperature dependence of its solubility (Arnorsson et al, 1983), we estimate the tem perature of the bottom water to be 138°C, which is in close agreement with 133°C, the highest recorded temperature in the bottom waters of Arima wells (Ueji, 1958). The results of the calculation are summarized in Table 5 together with relations used for the estimations.…”

Hydrochemical and Isotopic Composition of Tuzla Geothermal Field (Canakkale-Turkey) and its Environmental Impacts

“…Chemical geothermometers depend on the water-mineral equilibrium and give the last equilibration temperature for the reservoir (Nicholson, 1993). Several geothermometry techniques have been developed to predict reservoir temperatures in geothermal systems (Fournier and Truesdell, 1973;Fournier, 1979;Fournier and Potter, 1982;Arnórsson et al, 1983;Giggenbach et al, 1983;Giggenbach, 1988). All of these techniques are based on the assumption that temperature dependent water-mineral equilibrium is attained in the reservoir.…”

The pre-Cainozoic basement delineation by magnetotelluric methods in the western part of the Liptovská kotlina Depression (Western Carpathians, Slovakia)

“…The chalcedony (adiabatic boiling model) geothermometer after Arnórsson et al (1983) gave the value of 65.2 °C for Bešeňová what satisfies the circulation depth of 1580 m (see Table 1). The same geothermometer used for Lúčky gave the result of 42.3 °C which satisfies the circulation depth of 900 m (Table 1).…”

“…The best agreement between values measured at the depth of screen placement and theoretical values for the Bešeňová borehole was obtained using the Arnórsson et al (1983) equation for chalcedony (adiabatic boiling model):…”