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Abstract:

In the south of Córdoba (Argentina), groundwater from the unconfined aquifer, presents scarce suitability due to high values of salts, sulfates, arsenic and fluorides. This situation makes it necessary to explore other possibilities, for example, conjunctive use of groundwater and surface water. The objective of this work was to describe the dynamic and geochemical relationships between surface water and groundwater in the medium-low basin of the Ají stream. The conceptual model was supported by the use of stable 18O/16O and 2H/1H isotopes and it was validated through numerical modeling and 222Rn activity results. The stream water is sodium bicarbonate fresh type (460-1, 400 μS/cm). The aquifer presents fresh to salt water (720-14, 000 μS/cm), from sodium bicarbonate to sodium chloride type. The isotopic results show that there is a straight mixing line between surface water and groundwater samples. The geochemical numerical modeling revealed that in the mixing models between stream and aquifer, for hydraulically linked samples, the aquifer only provides 2% of the total stream flow. This was validated through 222Rn results, which led us to the estimation of about 2% of groundwater supply in summer. © IWA Publishing 2017.

Registro:

Documento: Artículo
Título:Assessing interactions between groundwater and surface water in a Pampean stream
Autor:Becher Quinodoz, F.; Blarasin, M.; Panarello, H.; Ducos, E.
Filiación:CONICET-UNRC, Ruta 36 km 602, Rio Cuarto, Córdoba, Argentina
Dpto. Geología, Universidad Nacional de Rio Cuarto (UNRC), Ruta 36 km 602, Rio Cuarto, Córdoba, Argentina
Instituto de Geocronología y Geología Isotópica, (INGEIS-CONICET-UBA), Buenos Aires, Argentina
Palabras clave:Geochemical modeling; Groundwater; Radon; Stable isotope; Surface water; Aquifers; Carbonates; Geochemistry; Groundwater; Groundwater resources; Isotopes; Mixing; Numerical models; Radon; Rivers; Sodium bicarbonate; Stream flow; Surface waters; Activity results; Conceptual model; Conjunctive use; Geochemical modeling; Groundwater supply; Stable isotopes; Surface water and groundwaters; Unconfined aquifers; Hydrochemistry; bicarbonate; chemical composition; conceptual framework; groundwater; groundwater-surface water interaction; hydrogeochemistry; hydrological modeling; inorganic compound; mixing; numerical model; radon; river basin; salt; sodium chloride; stable isotope; stream; surface water; unconfined aquifer; Aji Basin; Argentina; Cordoba [Argentina]; East Azerbaijan; Iran; Pampas
Año:2017
Volumen:48
Número:4
Página de inicio:1045
Página de fin:1057
DOI: http://dx.doi.org/10.2166/nh.2016.100
Título revista:Hydrology Research
Título revista abreviado:Hydrol. Res.
ISSN:19989563
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19989563_v48_n4_p1045_BecherQuinodoz

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Citas:

---------- APA ----------
Becher Quinodoz, F., Blarasin, M., Panarello, H. & Ducos, E. (2017) . Assessing interactions between groundwater and surface water in a Pampean stream. Hydrology Research, 48(4), 1045-1057.
http://dx.doi.org/10.2166/nh.2016.100
---------- CHICAGO ----------
Becher Quinodoz, F., Blarasin, M., Panarello, H., Ducos, E. "Assessing interactions between groundwater and surface water in a Pampean stream" . Hydrology Research 48, no. 4 (2017) : 1045-1057.
http://dx.doi.org/10.2166/nh.2016.100
---------- MLA ----------
Becher Quinodoz, F., Blarasin, M., Panarello, H., Ducos, E. "Assessing interactions between groundwater and surface water in a Pampean stream" . Hydrology Research, vol. 48, no. 4, 2017, pp. 1045-1057.
http://dx.doi.org/10.2166/nh.2016.100
---------- VANCOUVER ----------
Becher Quinodoz, F., Blarasin, M., Panarello, H., Ducos, E. Assessing interactions between groundwater and surface water in a Pampean stream. Hydrol. Res. 2017;48(4):1045-1057.
http://dx.doi.org/10.2166/nh.2016.100