The chemistry of geothermal waters in Iceland. I. Calculation of aqueous speciation from 0° to 370°C |
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| Authors: | Stefán Arnórsson Sven Sigurdsson Hördur Svavarsson |
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| Institution: | Science Institute, University of Iceland, Dunhagi 3, ReykjavíkUK;National Energy Authority, Grensásvegur 9, ReykjavíkUK |
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| Abstract: | A computer programme has been developed to calculate the composition and aqueous speciation of geothermal reservoir waters including pH, redox potential and gas partial pressures. The programme is specifically suited to handle geochemical data from wet-steam wells, hot-water wells and boiling hot springs, but it may also be used for non-thermal waters. Solubility data for selected geothermal minerals are incorporated to facilitate the study of equilibria. The programme may also be used to study chemical changes in water chemistry accompanying boiling, variable degassing and cooling, and how these changes disturb equilibria. |
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