Chemical and isotopic features and flow path modelling of thermal fluids of the Abano system, Italy

dD and d18O in waters, d13C in CO2 and CH4, 3He/4He and 40Ar/36Ar ratios in natural gases were used to define the origin of water, CO2 and CH4. A good correspondence were obtained between measured chemical compositions of thermal springs emerging at Berici Hills and in the exploited area, and those computed by means of a numerical simulation