Hidrogeoquímica convencional e isotópica de las aguas carbónicas de Cataluña

Abstract

Conventional and isotopic hydrogeochemical techniques have been applied to a study of CO2-rich waters in the northeast of Catalonia. Two hydrogeochemical facies, a calcium-bicarbonate and another sodium-bicarbonate are clearly distinguished. The second one seems to be the result of evolution from the calcium facies. The tritium-ages support the previous division in two hydrogeochemical facies. Measurements of ,sO and deuterium ratio indicate that the carbonic waters have a meteoric origin. The i3C/12C ratio varied from -5,0 to -0,64 6°/œ showing a deep origin of CO