Origen de la salinidad de las aguas subterráneas del sistema acuífero costero de Torrevieja: Aspectos Hidroquímicos

Abstract

The aquifer system of Torrevieja (SE Spain) is under a process of seawater intrusion. However, there are uncertainties about the origin of abnormally high salinity values detected in boreholes located 15 km from the coastline. Also there are two hypersaline lagoons over the aquifer that could be related to groundwater. The salinity sources have been determined with hydrochemical ana/ys/s of groundwater, electric conductivity logs, major-minor ions relationships and hydrochemical indexes rNa/rCI, rNa/rK, rSOJ rCI, rS04andrCa. In this paper we propose an interpretation for the salinity differences and the relation between the lagoons and the aquifer