Hypothesis of Groundwater Flow Through Geological Structures in Guarani Aquifer System (GAS) Using Chemical and Isotopic Data
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.proeps.2016.12.030 http://hdl.handle.net/11449/162643 |
Resumo: | Guarani Aquifer System (GAS) is one of the most important in South America shared by more than 9 million people living in Argentina, Brazil, Paraguay and Uruguay. Groundwater flow through GAS is controlled by the geological framework of the Parana and Chacoparanense sedimentary basins, dividing the aquifer in four groundwater flow compartments. The limit between north and southern compartment of the GAS is represented by the Rio Grande-Asuncion Arch (RGAA), a megastructure that represents a regional uplift. During long time the role played by this important geological structure over groundwater flow has remained a controversial question. Groundwater from the northern portion of the RGAA is characterized by elevated values of electrical conductivity (.> 1,500 mu S. cm(-1)), Na-Cl-SO4 type, and oversaturated with respect to calcite. On the other hand, despite their downgradient position, samples collected south of the structure, present low values of electrical conductivity (300-500 mu S. cm(-1)), Ca-HCO3 or Na-HCO3 types, and most samples are not saturated with respect to calcite. These differences allow inferring that groundwater flow through RGAA would not have continuity. Moreover, an important recharge zone could be stablished along the structure, partially responsible for the replenishment of the GAS in the southern compartment. (C) 2017 The Authors. Published by Elsevier B. V. |
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Hypothesis of Groundwater Flow Through Geological Structures in Guarani Aquifer System (GAS) Using Chemical and Isotopic DataGuarani Aquifer SystemGroundwater FlowHydrochemistryGeochemical EvolutionGuarani Aquifer System (GAS) is one of the most important in South America shared by more than 9 million people living in Argentina, Brazil, Paraguay and Uruguay. Groundwater flow through GAS is controlled by the geological framework of the Parana and Chacoparanense sedimentary basins, dividing the aquifer in four groundwater flow compartments. The limit between north and southern compartment of the GAS is represented by the Rio Grande-Asuncion Arch (RGAA), a megastructure that represents a regional uplift. During long time the role played by this important geological structure over groundwater flow has remained a controversial question. Groundwater from the northern portion of the RGAA is characterized by elevated values of electrical conductivity (.> 1,500 mu S. cm(-1)), Na-Cl-SO4 type, and oversaturated with respect to calcite. On the other hand, despite their downgradient position, samples collected south of the structure, present low values of electrical conductivity (300-500 mu S. cm(-1)), Ca-HCO3 or Na-HCO3 types, and most samples are not saturated with respect to calcite. These differences allow inferring that groundwater flow through RGAA would not have continuity. Moreover, an important recharge zone could be stablished along the structure, partially responsible for the replenishment of the GAS in the southern compartment. (C) 2017 The Authors. Published by Elsevier B. V.International Atomic Energy Agency (IAEA)Univ Estadual Paulista, Ctr Estudos Ambientais, Av 24A,1515, BR-13506900 Rio Claro, SP, BrazilInst Hidrol Llanuras Dr Eduardo Usunoff, Av Republ Italia 780,B7300, Azul, Buenos Aires, ArgentinaCPRM SUREG SP, Sao Paulo, SP, BrazilUniv Nacl Litoral, Ctr Estudios Hidroambient, Fac Ingn & Ciencias Hidr, Ciudad Univ,Ruta Nac 168 Km 472-4, RA-3000 Santa Fe, ArgentinaUniv Republica, Fac Ciencias, UDELAR Igua, Montevideo 4225, UruguayUniv Estadual Paulista, Ctr Estudos Ambientais, Av 24A,1515, BR-13506900 Rio Claro, SP, BrazilElsevier B.V.Universidade Estadual Paulista (Unesp)Inst Hidrol Llanuras Dr Eduardo UsunoffCPRM SUREG SPUniv Nacl LitoralUniv RepublicaGastmans, Didier [UNESP]Mira, AndresKirchheim, RobertoVives, LuisRodriguez, LeticiaVeroslavsky, GerardoMarques, J. M.Chambel, A.2018-11-26T17:24:16Z2018-11-26T17:24:16Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject136-139http://dx.doi.org/10.1016/j.proeps.2016.12.03015th Water-rock Interaction International Symposium, Wri-15. Amsterdam: Elsevier Science Bv, v. 17, p. 136-139, 2017.1878-5220http://hdl.handle.net/11449/16264310.1016/j.proeps.2016.12.030WOS:000398020400035Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPeng15th Water-rock Interaction International Symposium, Wri-15info:eu-repo/semantics/openAccess2024-04-15T19:23:23Zoai:repositorio.unesp.br:11449/162643Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-15T19:23:23Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Hypothesis of Groundwater Flow Through Geological Structures in Guarani Aquifer System (GAS) Using Chemical and Isotopic Data |
title |
Hypothesis of Groundwater Flow Through Geological Structures in Guarani Aquifer System (GAS) Using Chemical and Isotopic Data |
spellingShingle |
Hypothesis of Groundwater Flow Through Geological Structures in Guarani Aquifer System (GAS) Using Chemical and Isotopic Data Gastmans, Didier [UNESP] Guarani Aquifer System Groundwater Flow Hydrochemistry Geochemical Evolution |
title_short |
Hypothesis of Groundwater Flow Through Geological Structures in Guarani Aquifer System (GAS) Using Chemical and Isotopic Data |
title_full |
Hypothesis of Groundwater Flow Through Geological Structures in Guarani Aquifer System (GAS) Using Chemical and Isotopic Data |
title_fullStr |
Hypothesis of Groundwater Flow Through Geological Structures in Guarani Aquifer System (GAS) Using Chemical and Isotopic Data |
title_full_unstemmed |
Hypothesis of Groundwater Flow Through Geological Structures in Guarani Aquifer System (GAS) Using Chemical and Isotopic Data |
title_sort |
Hypothesis of Groundwater Flow Through Geological Structures in Guarani Aquifer System (GAS) Using Chemical and Isotopic Data |
author |
Gastmans, Didier [UNESP] |
author_facet |
Gastmans, Didier [UNESP] Mira, Andres Kirchheim, Roberto Vives, Luis Rodriguez, Leticia Veroslavsky, Gerardo Marques, J. M. Chambel, A. |
author_role |
author |
author2 |
Mira, Andres Kirchheim, Roberto Vives, Luis Rodriguez, Leticia Veroslavsky, Gerardo Marques, J. M. Chambel, A. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Inst Hidrol Llanuras Dr Eduardo Usunoff CPRM SUREG SP Univ Nacl Litoral Univ Republica |
dc.contributor.author.fl_str_mv |
Gastmans, Didier [UNESP] Mira, Andres Kirchheim, Roberto Vives, Luis Rodriguez, Leticia Veroslavsky, Gerardo Marques, J. M. Chambel, A. |
dc.subject.por.fl_str_mv |
Guarani Aquifer System Groundwater Flow Hydrochemistry Geochemical Evolution |
topic |
Guarani Aquifer System Groundwater Flow Hydrochemistry Geochemical Evolution |
description |
Guarani Aquifer System (GAS) is one of the most important in South America shared by more than 9 million people living in Argentina, Brazil, Paraguay and Uruguay. Groundwater flow through GAS is controlled by the geological framework of the Parana and Chacoparanense sedimentary basins, dividing the aquifer in four groundwater flow compartments. The limit between north and southern compartment of the GAS is represented by the Rio Grande-Asuncion Arch (RGAA), a megastructure that represents a regional uplift. During long time the role played by this important geological structure over groundwater flow has remained a controversial question. Groundwater from the northern portion of the RGAA is characterized by elevated values of electrical conductivity (.> 1,500 mu S. cm(-1)), Na-Cl-SO4 type, and oversaturated with respect to calcite. On the other hand, despite their downgradient position, samples collected south of the structure, present low values of electrical conductivity (300-500 mu S. cm(-1)), Ca-HCO3 or Na-HCO3 types, and most samples are not saturated with respect to calcite. These differences allow inferring that groundwater flow through RGAA would not have continuity. Moreover, an important recharge zone could be stablished along the structure, partially responsible for the replenishment of the GAS in the southern compartment. (C) 2017 The Authors. Published by Elsevier B. V. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 2018-11-26T17:24:16Z 2018-11-26T17:24:16Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.proeps.2016.12.030 15th Water-rock Interaction International Symposium, Wri-15. Amsterdam: Elsevier Science Bv, v. 17, p. 136-139, 2017. 1878-5220 http://hdl.handle.net/11449/162643 10.1016/j.proeps.2016.12.030 WOS:000398020400035 |
url |
http://dx.doi.org/10.1016/j.proeps.2016.12.030 http://hdl.handle.net/11449/162643 |
identifier_str_mv |
15th Water-rock Interaction International Symposium, Wri-15. Amsterdam: Elsevier Science Bv, v. 17, p. 136-139, 2017. 1878-5220 10.1016/j.proeps.2016.12.030 WOS:000398020400035 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
15th Water-rock Interaction International Symposium, Wri-15 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
136-139 |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
dc.source.none.fl_str_mv |
Web of Science 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 |
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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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1803047123619414016 |