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Br-Li and stable isotopes to induce groundwater salinity in crystalline and detrital aquifers: Oriental Haouz Morocco
Study region: Paleozoic, Triassic and Quaternary lateral aquifers have been the subject of detailed geochemistry study, in Oriental Haouz, Morocco. Study method: Interpretations are based on the combination of major elements, Br, Li, and stable isotopes. In order to identify the origin of salinization, hydrochemical analysis were applied on forty groundwater samples, twenty of them are used for stable isotope measurement, three rivers, a sample from the natural spring in the south-western part and one rain water. New hydrochemical insights: High values of Li are considered with regard to micaschists and evaporite formations. This is roughly consistent with Lithium’s origin from saline dissolution. Cl/Br ratios show that the initial sedimentary rocks which give the present micaschists were relatively rich in evaporitic minerals and the beginning with of metamorphism during the hercynian orogeny, the major elements originally present in low-grade phases, would preserved in medium-grade phases such as evaporite minerals. Consequently, these minerals were easily liberated via alteration of alterated Paleozoic micaschist strata. NO32- does not only come from agricultural pollution but also from septic waste. Stable isotopes are segregated into two groups: Group1 coexists with high hydraulic parameters and is depleted of δ18O and δ2H; Group2 coexists with low hydraulic parameters, and is enriched with δ18O and δ2H. Thus, during precipitation events, waters infiltrate safely/sparingly, and evaporation did not/or occur following hydraulic parameters.
Br-Li and stable isotopes to induce groundwater salinity in crystalline and detrital aquifers: Oriental Haouz Morocco
Study region: Paleozoic, Triassic and Quaternary lateral aquifers have been the subject of detailed geochemistry study, in Oriental Haouz, Morocco. Study method: Interpretations are based on the combination of major elements, Br, Li, and stable isotopes. In order to identify the origin of salinization, hydrochemical analysis were applied on forty groundwater samples, twenty of them are used for stable isotope measurement, three rivers, a sample from the natural spring in the south-western part and one rain water. New hydrochemical insights: High values of Li are considered with regard to micaschists and evaporite formations. This is roughly consistent with Lithium’s origin from saline dissolution. Cl/Br ratios show that the initial sedimentary rocks which give the present micaschists were relatively rich in evaporitic minerals and the beginning with of metamorphism during the hercynian orogeny, the major elements originally present in low-grade phases, would preserved in medium-grade phases such as evaporite minerals. Consequently, these minerals were easily liberated via alteration of alterated Paleozoic micaschist strata. NO32- does not only come from agricultural pollution but also from septic waste. Stable isotopes are segregated into two groups: Group1 coexists with high hydraulic parameters and is depleted of δ18O and δ2H; Group2 coexists with low hydraulic parameters, and is enriched with δ18O and δ2H. Thus, during precipitation events, waters infiltrate safely/sparingly, and evaporation did not/or occur following hydraulic parameters.
Br-Li and stable isotopes to induce groundwater salinity in crystalline and detrital aquifers: Oriental Haouz Morocco
Mohmmed Elgettafi (Autor:in) / Samia Rochdane (Autor:in) / Abdenabi Elmandour (Autor:in) / Juan M. Lorenzo (Autor:in) / Mahjoub Himi (Autor:in) / Albert Casas (Autor:in)
2025
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Saline water , Br-NO3-Li , Isotopes , Micaschists , Evaporates , Physical geography , GB3-5030 , Geology , QE1-996.5
Metadata by DOAJ is licensed under CC BY-SA 1.0
| Elsevier | 2025
| DOAJ | 2025
| Elsevier | 2025