Caracterización de las familias hidrogeoquímicas en el acuífero de La Aldea (Gran Canaria)

Abstract

The hydrogeochemical study of groundwater at La Aldea aquifer (West Gran Canaria) has allowed to characterize different groundwater families, depending on the exploited m.aterials and/or the existence of some modifying phenomena. CI-Mg and Na-Mg waters are related with basalts exploitation; CI-Na high saline waters come from Las ~abladas clift, and are suffering a mixing with the alluvial groundwater. The mixing waters are CI-Na-Ca, and can evolve to CISO,-Na and SO,-CI-Na when irrigation returns are present.