Hydrogeochemical processes on inland aquifer systems: A combined multivariate statistical technique and isotopic approach
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/86910 |
Resumo: | Groundwater is an important resource used for multiple purposes and should be protected, especially, in semi-arid and arid regions. The aim of this study is to assess the main processes on groundwater salinization from Menzel Habib shallow and deep aquifers, southeastern Tunisia, which could be applied to further groundwater quality assessment. Indeed, there were used combined hydrogeochemical (major elements) and isotopic fingerprints (18O, 2H) data approaches using multivariate statistical methods, highlighting, Hierarchical Clustering Analysis and Principal Component Analysis. A total of 36 groundwater samples were collected from the Menzel Habib aquifer system: twenty-five from shallow aquifer and eleven from deep aquifer. The obtained results from both aquifer layers indicated three dominant hydrochemical facies: Chloride-sodic, Sulphated-sodic, and mixed water type, according to Piper classification. The determination of salinization origin of groundwater, and the understanding of its hydrological and geochemical behaviors, were assessed by a combined statistical and hydrogeochemical approach. The study of correlations established between major elements and Total Dissolved Solids is, thus, an important tool where dissolution of evaporites that can originate from the Triassic materials of Hadifa mountain, the precipitation and/or dissolution of carbonates, cationic exchange and inverse cationic exchange processes are the main processes associated to groundwater salinity increase. Moreover, the HCA has allowed to classify the groundwater samples into two clusters: the first one with low to moderate salinity and the second one with high salinity. In addition, the application of stable isotopes allowed a better understanding of the hydrodynamic functioning of this aquifer system. The isotopic data suggests a relatively high δ2H and δ18O values for groundwater samples located close to Global Meteoric Water Line (GMWL) that reflects recent recharge for the aquifer system by direct rainwater infiltration, respectively from bordered reliefs in the study area. It also showed a depletion in isotopic composition for almost groundwater samples that indicates the importance of evaporation on the hydrochemistry of the area. |
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Hydrogeochemical processes on inland aquifer systems: A combined multivariate statistical technique and isotopic approachSalinizationHierarchical Cluster AnalysisPrincipal component analysisStable isotopesMenzel habibTunisiaCiências Naturais::Ciências da Terra e do AmbienteScience & TechnologyAção climáticaGroundwater is an important resource used for multiple purposes and should be protected, especially, in semi-arid and arid regions. The aim of this study is to assess the main processes on groundwater salinization from Menzel Habib shallow and deep aquifers, southeastern Tunisia, which could be applied to further groundwater quality assessment. Indeed, there were used combined hydrogeochemical (major elements) and isotopic fingerprints (18O, 2H) data approaches using multivariate statistical methods, highlighting, Hierarchical Clustering Analysis and Principal Component Analysis. A total of 36 groundwater samples were collected from the Menzel Habib aquifer system: twenty-five from shallow aquifer and eleven from deep aquifer. The obtained results from both aquifer layers indicated three dominant hydrochemical facies: Chloride-sodic, Sulphated-sodic, and mixed water type, according to Piper classification. The determination of salinization origin of groundwater, and the understanding of its hydrological and geochemical behaviors, were assessed by a combined statistical and hydrogeochemical approach. The study of correlations established between major elements and Total Dissolved Solids is, thus, an important tool where dissolution of evaporites that can originate from the Triassic materials of Hadifa mountain, the precipitation and/or dissolution of carbonates, cationic exchange and inverse cationic exchange processes are the main processes associated to groundwater salinity increase. Moreover, the HCA has allowed to classify the groundwater samples into two clusters: the first one with low to moderate salinity and the second one with high salinity. In addition, the application of stable isotopes allowed a better understanding of the hydrodynamic functioning of this aquifer system. The isotopic data suggests a relatively high δ2H and δ18O values for groundwater samples located close to Global Meteoric Water Line (GMWL) that reflects recent recharge for the aquifer system by direct rainwater infiltration, respectively from bordered reliefs in the study area. It also showed a depletion in isotopic composition for almost groundwater samples that indicates the importance of evaporation on the hydrochemistry of the area.This work was developed under the project UIDB/04683/2020 and UIDP/04683/2020 - ICT, Fundacao para a Ciencia e Tecnologia.ElsevierUniversidade do MinhoDhaoui, OussamaAntunes, Isabel Margarida Horta RibeiroBoente, CarlosAgoubi, BelgacemKharroubi, Adel20232025-01-01T00:00:00Z2023-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/86910engDhaoui, O., Antunes, I. M. H. R., Boente, C., Agoubi, B., & Kharroubi, A. (2023, February). Hydrogeochemical processes on inland aquifer systems: A combined multivariate statistical technique and isotopic approach. Groundwater for Sustainable Development. Elsevier BV. http://doi.org/10.1016/j.gsd.2022.1008872352-801X10.1016/j.gsd.2022.100887info:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-10T01:19:25Zoai:repositorium.sdum.uminho.pt:1822/86910Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:39:02.744159Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Hydrogeochemical processes on inland aquifer systems: A combined multivariate statistical technique and isotopic approach |
title |
Hydrogeochemical processes on inland aquifer systems: A combined multivariate statistical technique and isotopic approach |
spellingShingle |
Hydrogeochemical processes on inland aquifer systems: A combined multivariate statistical technique and isotopic approach Dhaoui, Oussama Salinization Hierarchical Cluster Analysis Principal component analysis Stable isotopes Menzel habib Tunisia Ciências Naturais::Ciências da Terra e do Ambiente Science & Technology Ação climática |
title_short |
Hydrogeochemical processes on inland aquifer systems: A combined multivariate statistical technique and isotopic approach |
title_full |
Hydrogeochemical processes on inland aquifer systems: A combined multivariate statistical technique and isotopic approach |
title_fullStr |
Hydrogeochemical processes on inland aquifer systems: A combined multivariate statistical technique and isotopic approach |
title_full_unstemmed |
Hydrogeochemical processes on inland aquifer systems: A combined multivariate statistical technique and isotopic approach |
title_sort |
Hydrogeochemical processes on inland aquifer systems: A combined multivariate statistical technique and isotopic approach |
author |
Dhaoui, Oussama |
author_facet |
Dhaoui, Oussama Antunes, Isabel Margarida Horta Ribeiro Boente, Carlos Agoubi, Belgacem Kharroubi, Adel |
author_role |
author |
author2 |
Antunes, Isabel Margarida Horta Ribeiro Boente, Carlos Agoubi, Belgacem Kharroubi, Adel |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Dhaoui, Oussama Antunes, Isabel Margarida Horta Ribeiro Boente, Carlos Agoubi, Belgacem Kharroubi, Adel |
dc.subject.por.fl_str_mv |
Salinization Hierarchical Cluster Analysis Principal component analysis Stable isotopes Menzel habib Tunisia Ciências Naturais::Ciências da Terra e do Ambiente Science & Technology Ação climática |
topic |
Salinization Hierarchical Cluster Analysis Principal component analysis Stable isotopes Menzel habib Tunisia Ciências Naturais::Ciências da Terra e do Ambiente Science & Technology Ação climática |
description |
Groundwater is an important resource used for multiple purposes and should be protected, especially, in semi-arid and arid regions. The aim of this study is to assess the main processes on groundwater salinization from Menzel Habib shallow and deep aquifers, southeastern Tunisia, which could be applied to further groundwater quality assessment. Indeed, there were used combined hydrogeochemical (major elements) and isotopic fingerprints (18O, 2H) data approaches using multivariate statistical methods, highlighting, Hierarchical Clustering Analysis and Principal Component Analysis. A total of 36 groundwater samples were collected from the Menzel Habib aquifer system: twenty-five from shallow aquifer and eleven from deep aquifer. The obtained results from both aquifer layers indicated three dominant hydrochemical facies: Chloride-sodic, Sulphated-sodic, and mixed water type, according to Piper classification. The determination of salinization origin of groundwater, and the understanding of its hydrological and geochemical behaviors, were assessed by a combined statistical and hydrogeochemical approach. The study of correlations established between major elements and Total Dissolved Solids is, thus, an important tool where dissolution of evaporites that can originate from the Triassic materials of Hadifa mountain, the precipitation and/or dissolution of carbonates, cationic exchange and inverse cationic exchange processes are the main processes associated to groundwater salinity increase. Moreover, the HCA has allowed to classify the groundwater samples into two clusters: the first one with low to moderate salinity and the second one with high salinity. In addition, the application of stable isotopes allowed a better understanding of the hydrodynamic functioning of this aquifer system. The isotopic data suggests a relatively high δ2H and δ18O values for groundwater samples located close to Global Meteoric Water Line (GMWL) that reflects recent recharge for the aquifer system by direct rainwater infiltration, respectively from bordered reliefs in the study area. It also showed a depletion in isotopic composition for almost groundwater samples that indicates the importance of evaporation on the hydrochemistry of the area. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023 2023-01-01T00:00:00Z 2025-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://hdl.handle.net/1822/86910 |
url |
https://hdl.handle.net/1822/86910 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Dhaoui, O., Antunes, I. M. H. R., Boente, C., Agoubi, B., & Kharroubi, A. (2023, February). Hydrogeochemical processes on inland aquifer systems: A combined multivariate statistical technique and isotopic approach. Groundwater for Sustainable Development. Elsevier BV. http://doi.org/10.1016/j.gsd.2022.100887 2352-801X 10.1016/j.gsd.2022.100887 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/embargoedAccess |
eu_rights_str_mv |
embargoedAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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