Modelo hidrogeológico conceptual del Sistema Acuífero Guaraní (SAG): Una herramienta para la gestión
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng spa |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/226926 |
Resumo: | The Guarani aquifer system (GAS) extends beneath the territories of Argentina, Brazil, Paraguay and Uruguay and thus represents a typical example of a transboundary aquifer. The GAS is an important source of drinking water for the population living within its area. Because of differences in the legal norms concerning water resources in these four countries, an urgently required legal framework for the shared management of the groundwater is currently being drawn up. Within this context, the conceptual regional hydrogeological model should be used as an important tool to delineate shared actions, particularly in regions where the groundwater flow is transboundary. The GAS is considered to be a continuous aquifer made up of Mesozoic continental clastic sedimentary rocks that occur in the Parana and Chacoparanense sedimentary basins, and is bounded at its base by a Permo-Eotriassic regional unconformity and at the top by lower-Cretaceous basaltic lava. The groundwater flow shows a regional trend from N to S along the main axis of these basins. With regard to the major tectonic structures of these sedimentary basins, various main hydrodynamic domains can be distinguished, such as the Ponta Grossa arch and the Asuncion-Rio Grande dorsal. Regional recharge areas are primarily located in the eastern and northern outcrop areas, whilst the western end of the GAS, the Mato Grosso do Sul, contains zones of local recharge and regional discharge. Transboundary flow is observed in areas confined to the national borders of the four countries. Nevertheless, due to the groundwater residence times in the GAS special management actions are called for to prevent over-exploitation, particularly in the confined zones of the aquifer. |
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Modelo hidrogeológico conceptual del Sistema Acuífero Guaraní (SAG): Una herramienta para la gestiónHydrogeological conceptual model for Guarani Aquifer System: A tool for managementAquiferGroundwaterGuarani Aquifer SystemHydrodynamicHydrogeological conceptual modelThe Guarani aquifer system (GAS) extends beneath the territories of Argentina, Brazil, Paraguay and Uruguay and thus represents a typical example of a transboundary aquifer. The GAS is an important source of drinking water for the population living within its area. Because of differences in the legal norms concerning water resources in these four countries, an urgently required legal framework for the shared management of the groundwater is currently being drawn up. Within this context, the conceptual regional hydrogeological model should be used as an important tool to delineate shared actions, particularly in regions where the groundwater flow is transboundary. The GAS is considered to be a continuous aquifer made up of Mesozoic continental clastic sedimentary rocks that occur in the Parana and Chacoparanense sedimentary basins, and is bounded at its base by a Permo-Eotriassic regional unconformity and at the top by lower-Cretaceous basaltic lava. The groundwater flow shows a regional trend from N to S along the main axis of these basins. With regard to the major tectonic structures of these sedimentary basins, various main hydrodynamic domains can be distinguished, such as the Ponta Grossa arch and the Asuncion-Rio Grande dorsal. Regional recharge areas are primarily located in the eastern and northern outcrop areas, whilst the western end of the GAS, the Mato Grosso do Sul, contains zones of local recharge and regional discharge. Transboundary flow is observed in areas confined to the national borders of the four countries. Nevertheless, due to the groundwater residence times in the GAS special management actions are called for to prevent over-exploitation, particularly in the confined zones of the aquifer.LEBAC Laboratório de Estudos de Bacias UNESP Campus de Rio Claro, Av 24A, 1515 Bela Vista, Rio Claro, SPFacultad de Ciencias Universidad de la Republica UDELAR, Iguá, 4225, CP 11400, MontevideoInstituto Geológico IG/SMA-SP, Av. Miguel Stefano 3900, São Paulo, SPLEBAC Laboratório de Estudos de Bacias UNESP Campus de Rio Claro, Av 24A, 1515 Bela Vista, Rio Claro, SPUniversidade Estadual Paulista (UNESP)UDELARIG/SMA-SPGastmans, D. [UNESP]Veroslavsky, G.Kiang Chang, H. [UNESP]Caetano-Chang, M. R. [UNESP]Nogueira Pressinotti, M. M.2022-04-29T04:22:55Z2022-04-29T04:22:55Z2012-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article249-265Boletin Geologico y Minero, v. 123, n. 3, p. 249-265, 2012.0366-01762253-6167http://hdl.handle.net/11449/2269262-s2.0-84864689206Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengspaBoletin Geologico y Mineroinfo:eu-repo/semantics/openAccess2022-04-29T04:22:55Zoai:repositorio.unesp.br:11449/226926Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:50:00.084053Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Modelo hidrogeológico conceptual del Sistema Acuífero Guaraní (SAG): Una herramienta para la gestión Hydrogeological conceptual model for Guarani Aquifer System: A tool for management |
title |
Modelo hidrogeológico conceptual del Sistema Acuífero Guaraní (SAG): Una herramienta para la gestión |
spellingShingle |
Modelo hidrogeológico conceptual del Sistema Acuífero Guaraní (SAG): Una herramienta para la gestión Gastmans, D. [UNESP] Aquifer Groundwater Guarani Aquifer System Hydrodynamic Hydrogeological conceptual model |
title_short |
Modelo hidrogeológico conceptual del Sistema Acuífero Guaraní (SAG): Una herramienta para la gestión |
title_full |
Modelo hidrogeológico conceptual del Sistema Acuífero Guaraní (SAG): Una herramienta para la gestión |
title_fullStr |
Modelo hidrogeológico conceptual del Sistema Acuífero Guaraní (SAG): Una herramienta para la gestión |
title_full_unstemmed |
Modelo hidrogeológico conceptual del Sistema Acuífero Guaraní (SAG): Una herramienta para la gestión |
title_sort |
Modelo hidrogeológico conceptual del Sistema Acuífero Guaraní (SAG): Una herramienta para la gestión |
author |
Gastmans, D. [UNESP] |
author_facet |
Gastmans, D. [UNESP] Veroslavsky, G. Kiang Chang, H. [UNESP] Caetano-Chang, M. R. [UNESP] Nogueira Pressinotti, M. M. |
author_role |
author |
author2 |
Veroslavsky, G. Kiang Chang, H. [UNESP] Caetano-Chang, M. R. [UNESP] Nogueira Pressinotti, M. M. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) UDELAR IG/SMA-SP |
dc.contributor.author.fl_str_mv |
Gastmans, D. [UNESP] Veroslavsky, G. Kiang Chang, H. [UNESP] Caetano-Chang, M. R. [UNESP] Nogueira Pressinotti, M. M. |
dc.subject.por.fl_str_mv |
Aquifer Groundwater Guarani Aquifer System Hydrodynamic Hydrogeological conceptual model |
topic |
Aquifer Groundwater Guarani Aquifer System Hydrodynamic Hydrogeological conceptual model |
description |
The Guarani aquifer system (GAS) extends beneath the territories of Argentina, Brazil, Paraguay and Uruguay and thus represents a typical example of a transboundary aquifer. The GAS is an important source of drinking water for the population living within its area. Because of differences in the legal norms concerning water resources in these four countries, an urgently required legal framework for the shared management of the groundwater is currently being drawn up. Within this context, the conceptual regional hydrogeological model should be used as an important tool to delineate shared actions, particularly in regions where the groundwater flow is transboundary. The GAS is considered to be a continuous aquifer made up of Mesozoic continental clastic sedimentary rocks that occur in the Parana and Chacoparanense sedimentary basins, and is bounded at its base by a Permo-Eotriassic regional unconformity and at the top by lower-Cretaceous basaltic lava. The groundwater flow shows a regional trend from N to S along the main axis of these basins. With regard to the major tectonic structures of these sedimentary basins, various main hydrodynamic domains can be distinguished, such as the Ponta Grossa arch and the Asuncion-Rio Grande dorsal. Regional recharge areas are primarily located in the eastern and northern outcrop areas, whilst the western end of the GAS, the Mato Grosso do Sul, contains zones of local recharge and regional discharge. Transboundary flow is observed in areas confined to the national borders of the four countries. Nevertheless, due to the groundwater residence times in the GAS special management actions are called for to prevent over-exploitation, particularly in the confined zones of the aquifer. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-07-01 2022-04-29T04:22:55Z 2022-04-29T04:22:55Z |
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 |
Boletin Geologico y Minero, v. 123, n. 3, p. 249-265, 2012. 0366-0176 2253-6167 http://hdl.handle.net/11449/226926 2-s2.0-84864689206 |
identifier_str_mv |
Boletin Geologico y Minero, v. 123, n. 3, p. 249-265, 2012. 0366-0176 2253-6167 2-s2.0-84864689206 |
url |
http://hdl.handle.net/11449/226926 |
dc.language.iso.fl_str_mv |
eng spa |
language |
eng spa |
dc.relation.none.fl_str_mv |
Boletin Geologico y Minero |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
249-265 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808129363699302400 |