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 salinizati...

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Main Authors: Mohmmed Elgettafi, Samia Rochdane, Abdenabi Elmandour, Juan M. Lorenzo, Mahjoub Himi, Albert Casas
Format: Article
Language:English
Published: Elsevier 2025-02-01
Series:Journal of Hydrology: Regional Studies
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Online Access:http://www.sciencedirect.com/science/article/pii/S2214581824004725
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author Mohmmed Elgettafi
Samia Rochdane
Abdenabi Elmandour
Juan M. Lorenzo
Mahjoub Himi
Albert Casas
author_facet Mohmmed Elgettafi
Samia Rochdane
Abdenabi Elmandour
Juan M. Lorenzo
Mahjoub Himi
Albert Casas
author_sort Mohmmed Elgettafi
collection DOAJ
description 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.
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spelling doaj-art-4a026a7f889842afb99ad1a5976f7ac92025-01-22T05:42:07ZengElsevierJournal of Hydrology: Regional Studies2214-58182025-02-0157102123Br-Li and stable isotopes to induce groundwater salinity in crystalline and detrital aquifers: Oriental Haouz MoroccoMohmmed Elgettafi0Samia Rochdane1Abdenabi Elmandour2Juan M. Lorenzo3Mahjoub Himi4Albert Casas5Mohamed First University, Multidisciplinary faculty of Nador, LCM2E Lab Géo-Environnement et Santé, BP 300, Selouane 26702, Morocco; Corresponding auther.Mohamed VI Polytechnic University (UM6P), Geology & Sustainable Mining, Hay Moulay Rachid, Benguerir 43150, MoroccoMohammed VI Museum for Water Civilization, Marrakech, MoroccoDepartment of Geology and Geophysics, Louisiana State University, Baton Rouge 70803, USADepartament de Minerologia, Petrologia i Geologia Aplicada, Universitat de Barcelona, Barcelona, SpainDepartament de Minerologia, Petrologia i Geologia Aplicada, Universitat de Barcelona, Barcelona, SpainStudy 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.http://www.sciencedirect.com/science/article/pii/S2214581824004725Saline waterBr-NO3-LiIsotopesMicaschistsEvaporates
spellingShingle Mohmmed Elgettafi
Samia Rochdane
Abdenabi Elmandour
Juan M. Lorenzo
Mahjoub Himi
Albert Casas
Br-Li and stable isotopes to induce groundwater salinity in crystalline and detrital aquifers: Oriental Haouz Morocco
Journal of Hydrology: Regional Studies
Saline water
Br-NO3-Li
Isotopes
Micaschists
Evaporates
title Br-Li and stable isotopes to induce groundwater salinity in crystalline and detrital aquifers: Oriental Haouz Morocco
title_full Br-Li and stable isotopes to induce groundwater salinity in crystalline and detrital aquifers: Oriental Haouz Morocco
title_fullStr Br-Li and stable isotopes to induce groundwater salinity in crystalline and detrital aquifers: Oriental Haouz Morocco
title_full_unstemmed Br-Li and stable isotopes to induce groundwater salinity in crystalline and detrital aquifers: Oriental Haouz Morocco
title_short Br-Li and stable isotopes to induce groundwater salinity in crystalline and detrital aquifers: Oriental Haouz Morocco
title_sort br li and stable isotopes to induce groundwater salinity in crystalline and detrital aquifers oriental haouz morocco
topic Saline water
Br-NO3-Li
Isotopes
Micaschists
Evaporates
url http://www.sciencedirect.com/science/article/pii/S2214581824004725
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