Other
Scientific paper
Mar 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983gecoa..47..567a&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 47, Issue 3, pp.567-577
Other
10
Scientific paper
New data from geothermal wells in Iceland have permitted empirical calibration of the chalcedony and Na / K geothermometers in the range of 25-180°C and 25-250°C respectively. The temperature functions are: Concentrations are expressed in ppm. These temperature functions correspond well with the chalcedony solubility data of (1973) and the thermodynamic data for low-albite/microcline/solution equilibria of (1969). A new CO 2 geothermometer is proposed which is considered to be useful in estimating underground temperatures in fumarolic geothermal fields. Its application involves analysis of CO 2 concentrations in the fumarole steam. The temperature function which applies in the range 180-300°C is: logCO 2 = 37.43 + 73192/ T - 11829· 10 3 / T 2 + 0.18923 T - 86.187· log T where T is in °K and CO 2 in moles per kg of steam.
Arnórsson Stefán
Gunnlaugsson Einar
Svavarsson Hördur
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