Hydrogeological compartmentalization and connection of the Guarani (GAS) and Serra Geral (SGAS) aquifer systems from a multiscale perspective : a case study in southern Brazil

Detalhes bibliográficos
Autor(a) principal: Silva, Rafaela Christ da
Data de Publicação: 2021
Outros Autores: Tognoli, Francisco Manoel Wohnrath, Reginato, Pedro Antonio Roehe, Salvadoretti, Paulo, Souza, Laís Vieira de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/231144
Resumo: The Guarani (GAS) and Serra Geral (SGAS) aquifer systems are the main groundwater sources in southern Brazil. We investigated the crucial relationship between the primary, intergranular pore system in the GAS and the secondary pore system associated with fractures in the SGAS in order to understand better the compartmentalization and connection, water storage, and productivity of both aquifers. Data from 375 wells that produce from both aquifers was used to evaluate the hydrodynamic characteristics of the GAS-SGAS contact. The integration of data using remote sensing, structural data, and thin section analysis support interpretations about the compartmentalization and potential connection of the aquifers. Fault zones trending NW, EW, and NNE demarcate six structural blocks in which the GAS-SGAS contact varies more than 400 m in elevation. Thin section analysis of sandstone texture and composition allowed us to determine the relationship between the type of porosity and cement type and content. The surface demarcating the Guarani-Serra Geral contact is highly productive in 93% of the wells that reach both aquifers. The integration of our results allowed us to propose a conceptual hydrogeological model for the GAS and SGAS aquifers in the study area.
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spelling Silva, Rafaela Christ daTognoli, Francisco Manoel WohnrathReginato, Pedro Antonio RoeheSalvadoretti, PauloSouza, Laís Vieira de2021-10-22T04:27:37Z20210375-7536http://hdl.handle.net/10183/231144001131534The Guarani (GAS) and Serra Geral (SGAS) aquifer systems are the main groundwater sources in southern Brazil. We investigated the crucial relationship between the primary, intergranular pore system in the GAS and the secondary pore system associated with fractures in the SGAS in order to understand better the compartmentalization and connection, water storage, and productivity of both aquifers. Data from 375 wells that produce from both aquifers was used to evaluate the hydrodynamic characteristics of the GAS-SGAS contact. The integration of data using remote sensing, structural data, and thin section analysis support interpretations about the compartmentalization and potential connection of the aquifers. Fault zones trending NW, EW, and NNE demarcate six structural blocks in which the GAS-SGAS contact varies more than 400 m in elevation. Thin section analysis of sandstone texture and composition allowed us to determine the relationship between the type of porosity and cement type and content. The surface demarcating the Guarani-Serra Geral contact is highly productive in 93% of the wells that reach both aquifers. The integration of our results allowed us to propose a conceptual hydrogeological model for the GAS and SGAS aquifers in the study area.application/pdfengRevista Brasileira de Geociências. Vol. 51, n.3 (Jul./Sept. 2021), [Article] e20200056, 16 p.HidrogeologiaAquiferoConectividade hidráulicaLineamentoModelo conceitualParaná, Bacia sedimentar doGuarani, Sistema AquíferoSerra Geral, Sistema AquíferoGroundwater flowGranular-fractured connectionLineamentStructural compartmentalizationParaná BasinHydrogeological compartmentalization and connection of the Guarani (GAS) and Serra Geral (SGAS) aquifer systems from a multiscale perspective : a case study in southern Brazilinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001131534.pdf.txt001131534.pdf.txtExtracted Texttext/plain67918http://www.lume.ufrgs.br/bitstream/10183/231144/2/001131534.pdf.txtb75598857c5dd69d707cd80c25d8857fMD52ORIGINAL001131534.pdfTexto completo (inglês)application/pdf19118080http://www.lume.ufrgs.br/bitstream/10183/231144/1/001131534.pdfd3a55304197169fa153fb70897468fdcMD5110183/2311442021-11-20 06:03:25.585881oai:www.lume.ufrgs.br:10183/231144Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-11-20T08:03:25Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Hydrogeological compartmentalization and connection of the Guarani (GAS) and Serra Geral (SGAS) aquifer systems from a multiscale perspective : a case study in southern Brazil
title Hydrogeological compartmentalization and connection of the Guarani (GAS) and Serra Geral (SGAS) aquifer systems from a multiscale perspective : a case study in southern Brazil
spellingShingle Hydrogeological compartmentalization and connection of the Guarani (GAS) and Serra Geral (SGAS) aquifer systems from a multiscale perspective : a case study in southern Brazil
Silva, Rafaela Christ da
Hidrogeologia
Aquifero
Conectividade hidráulica
Lineamento
Modelo conceitual
Paraná, Bacia sedimentar do
Guarani, Sistema Aquífero
Serra Geral, Sistema Aquífero
Groundwater flow
Granular-fractured connection
Lineament
Structural compartmentalization
Paraná Basin
title_short Hydrogeological compartmentalization and connection of the Guarani (GAS) and Serra Geral (SGAS) aquifer systems from a multiscale perspective : a case study in southern Brazil
title_full Hydrogeological compartmentalization and connection of the Guarani (GAS) and Serra Geral (SGAS) aquifer systems from a multiscale perspective : a case study in southern Brazil
title_fullStr Hydrogeological compartmentalization and connection of the Guarani (GAS) and Serra Geral (SGAS) aquifer systems from a multiscale perspective : a case study in southern Brazil
title_full_unstemmed Hydrogeological compartmentalization and connection of the Guarani (GAS) and Serra Geral (SGAS) aquifer systems from a multiscale perspective : a case study in southern Brazil
title_sort Hydrogeological compartmentalization and connection of the Guarani (GAS) and Serra Geral (SGAS) aquifer systems from a multiscale perspective : a case study in southern Brazil
author Silva, Rafaela Christ da
author_facet Silva, Rafaela Christ da
Tognoli, Francisco Manoel Wohnrath
Reginato, Pedro Antonio Roehe
Salvadoretti, Paulo
Souza, Laís Vieira de
author_role author
author2 Tognoli, Francisco Manoel Wohnrath
Reginato, Pedro Antonio Roehe
Salvadoretti, Paulo
Souza, Laís Vieira de
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Silva, Rafaela Christ da
Tognoli, Francisco Manoel Wohnrath
Reginato, Pedro Antonio Roehe
Salvadoretti, Paulo
Souza, Laís Vieira de
dc.subject.por.fl_str_mv Hidrogeologia
Aquifero
Conectividade hidráulica
Lineamento
Modelo conceitual
Paraná, Bacia sedimentar do
Guarani, Sistema Aquífero
Serra Geral, Sistema Aquífero
topic Hidrogeologia
Aquifero
Conectividade hidráulica
Lineamento
Modelo conceitual
Paraná, Bacia sedimentar do
Guarani, Sistema Aquífero
Serra Geral, Sistema Aquífero
Groundwater flow
Granular-fractured connection
Lineament
Structural compartmentalization
Paraná Basin
dc.subject.eng.fl_str_mv Groundwater flow
Granular-fractured connection
Lineament
Structural compartmentalization
Paraná Basin
description The Guarani (GAS) and Serra Geral (SGAS) aquifer systems are the main groundwater sources in southern Brazil. We investigated the crucial relationship between the primary, intergranular pore system in the GAS and the secondary pore system associated with fractures in the SGAS in order to understand better the compartmentalization and connection, water storage, and productivity of both aquifers. Data from 375 wells that produce from both aquifers was used to evaluate the hydrodynamic characteristics of the GAS-SGAS contact. The integration of data using remote sensing, structural data, and thin section analysis support interpretations about the compartmentalization and potential connection of the aquifers. Fault zones trending NW, EW, and NNE demarcate six structural blocks in which the GAS-SGAS contact varies more than 400 m in elevation. Thin section analysis of sandstone texture and composition allowed us to determine the relationship between the type of porosity and cement type and content. The surface demarcating the Guarani-Serra Geral contact is highly productive in 93% of the wells that reach both aquifers. The integration of our results allowed us to propose a conceptual hydrogeological model for the GAS and SGAS aquifers in the study area.
publishDate 2021
dc.date.accessioned.fl_str_mv 2021-10-22T04:27:37Z
dc.date.issued.fl_str_mv 2021
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/other
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/231144
dc.identifier.issn.pt_BR.fl_str_mv 0375-7536
dc.identifier.nrb.pt_BR.fl_str_mv 001131534
identifier_str_mv 0375-7536
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url http://hdl.handle.net/10183/231144
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Revista Brasileira de Geociências. Vol. 51, n.3 (Jul./Sept. 2021), [Article] e20200056, 16 p.
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eu_rights_str_mv openAccess
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institution UFRGS
reponame_str Repositório Institucional da UFRGS
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