Influencia de los materiales triásicos en la calidad del agua de algunos acuíferos kársticos del sur de Alicante (España)

J.M. Andreu; E. García-Sánchez; A. Pulido-Bosch; S. Jorreto; I. Francés

doi:10.3989/egeol.40150.098

Authors

J.M. Andreu Dpto. Ciencias de la Tierra y Medio Ambiente. University of Alicante
E. García-Sánchez Universidad Miguel Hernández, Elche
A. Pulido-Bosch Dpto. de Hidrogeología y Química Analítica. Universidad de Almería, La Cañada
S. Jorreto Dpto. de Hidrogeología y Química Analítica. Universidad de Almería, La Cañada
I. Francés Dpto. de Hidrogeología y Química Analítica. Universidad de Almería, La Cañada

DOI:

https://doi.org/10.3989/egeol.40150.098

Keywords:

groundwater, geophysical well- logging, overexploitation, salinization, Vinalopó

Abstract

Overexploitation of the aquifers of the Middle Vinalopó (SE Spain) has led to problems which, in many cases, are associated with groundwater salinization. The increase in salinity is considered to be due to the dissolution of mineral salts in the Triassic Keuper facies. Geophysical logging of various boreholes in three aquifers in this region confirms the presence of more mineralized waters at depth. The evidence suggests that the phenomenon of salinization results from mixing of these deep waters with more shallow ones. The fall in the ratio of freshwater to saltwater as overexploitation continues and the aquifer is emptied could explain the increased mineralization that has been observed at many boreholes that penetrate these aquifers.

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References

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