Environment and Ecology Research Vol. 7(5), pp. 285 - 292
DOI: 10.13189/eer.2019.070503
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Assessment of Groundwater Salinity in Aloha Pliocene Aquifer of Marbella (Málaga)

S. Espinosa Martinez ^1,*, M. A. Díaz ¹, J. Antonaya Avi ², Y G. Calero Diaz ^2
1 Cetaqua Andalucía, Spain
² Hidralia Integral Management of Water of Andalusia S.A., Spain

ABSTRACT

In order to study the origin of the salinity and the salinization mechanisms that operate in the Pliocene Aloha Aquifer, hydrochemical and isotopic environmental techniques have been used, due to their known effectiveness and usefulness in the identification of water-rock interaction processes, location of recharge zones and its origin. Analyzing major ions, trace elements, ionic ratios and isotopic ratios of the elements of the water molecule, stable isotopes (δ¹⁸O and δ²H) and δ¹⁸O and δ³⁴S of sulphate. Previous hydrochemical studies of the Pliocene Aloha Aquifer indicate high concentrations of Cl^- and Na⁺ as well as HCO₃, SO₄ and Ca that should be indicated the interaction with waters of highersalinity, but also with rocks (longer residence time in the aquifer). Therefore, as a starting hypothesis, two possible origins of the high salinity are considered: mixture with seawater or connate waters stored in Pliocene formations. Finally, the study confirmed that the salinity of the Aloha Aquifer is of a localcharacteristic and not due to seawater intrusion.

KEYWORDS
Hydrogeochemistry, Salinity, Ionic Ratios, Isotopes, Coastal Aquifer

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] S. Espinosa Martinez , M. A. Díaz , J. Antonaya Avi , Y G. Calero Diaz , "Assessment of Groundwater Salinity in Aloha Pliocene Aquifer of Marbella (Málaga)," Environment and Ecology Research, Vol. 7, No. 5, pp. 285 - 292, 2019. DOI: 10.13189/eer.2019.070503.

(b). APA Format:
S. Espinosa Martinez , M. A. Díaz , J. Antonaya Avi , Y G. Calero Diaz (2019). Assessment of Groundwater Salinity in Aloha Pliocene Aquifer of Marbella (Málaga). Environment and Ecology Research, 7(5), 285 - 292. DOI: 10.13189/eer.2019.070503.