Evaluation of deep temperatures of hydrothermal systems by a new gas geothermometer |
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| Authors: | Franco D&#x;Amore Costanzo Panichi |
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| Institution: | Istituto Internazionale per le Ricerche Geotermiche, Via del Buongusto 1, 56100 Pisa, Italy |
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| Abstract: | The chemical composition of gas mixtures emerging in thermal areas can be used to evaluate the deep thermal temperatures. Chemical analyses of the gas compositions for 34 thermal systems were considered and an empirical relationship developed between the relative concentrations of H2S, H2, CH4 and CO2 and the reservoir temperature. The evaluated temperatures can be expressed by: where (concentrations in % by volume) and β = 7 logPco2 |
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