Proceedings of IAHS
Proceedings of IAHS
PIAHS
Articles | Volume 385
Articles | Volume 385
https://doi.org/10.5194/piahs-385-393-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/piahs-385-393-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 385
Post-conference publication
 | 
19 Apr 2024
Post-conference publication |  | 19 Apr 2024

Multidisciplinary approach to understand the salinization of fractured crystalline aquifers in semi-arid region

Marjorie Beate Kreis, Jean-Denis Taupin, Nicolas Patris, Patrick Lachassagne, Virginie Vergnaud-Ayraud, Julien Daniel Pierre Burte, Christian Leduc, and Eduardo Sávio Passos Rodrigues Martins

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Short summary
This study used hydrodynamic and hydrogeochemical data to understand the salinization processes of the crystalline groundwater (GW) in Ceará, Brazil. Results demonstrate that GW is generally recent and recharged by meteoric waters mainly through localized infiltration. The study suggests that GW, originally bicarbonated, becomes progressively enriched in chloride due to the dissolution and leaching of salts that have precipitated in the unsaturated zone and pond sediments during dryer periods.
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