We investigate the interaction between hydrothermal gases and groundwater in a major aquifer exploited for potable supply in the geothermal-volcanic area of Mt. Amiata, Central Italy. The chemical and isotope composition of more than 80 water samples from two springs emerging on the southwestern side of the volcanic edifice has been processed with geochemical modelling techniques. Best fitting conditions between analytical data and model outputs have been achieved by numerical optimization, allowing for a quantitative description of gas-water-rock interactions occurring in this aquifer.

Hydrothermal gases in a shallow aquifer at Mt. Amiata, Italy: Insights from stable isotopes and geochemical modeling.

Pierotti L;Cortecci G;Gherardi F
2015

Abstract

We investigate the interaction between hydrothermal gases and groundwater in a major aquifer exploited for potable supply in the geothermal-volcanic area of Mt. Amiata, Central Italy. The chemical and isotope composition of more than 80 water samples from two springs emerging on the southwestern side of the volcanic edifice has been processed with geochemical modelling techniques. Best fitting conditions between analytical data and model outputs have been achieved by numerical optimization, allowing for a quantitative description of gas-water-rock interactions occurring in this aquifer.
2015
Istituto di Geoscienze e Georisorse - IGG - Sede Pisa
Hydrothermal gases
Mt. Amiata
stable isotopes
geochemical modelling
shallow aquifer
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/387569
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