Hydrogeochemical and Isotopic (δ2H-δ18O) Investigations of Hydrologic Dynamics of the Southern Urucuia Aquifer System, Brazil

The integration of hydrogeochemical and isotopic data (δ2H-δ18O) allowed the reconstruction of the hydrological dynamics of Southern Urucuia Aquifer System. This system is a combination of aquifers that are responsible for the perennity of the rivers during the rainy recession. In this study, water...

ver descrição completa

Detalhes bibliográficos
Autores: Barbosa, Natanael da Silva, Leal, Luiz Rogério Bastos, Barbosa, Natali da Silva, Klammler, Harald, Santos, Rafael Lima dos Santos, Zucchi, Maria do Rosário
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2020
País:Brasil
Recursos:Universidade Federal do Rio de Janeiro (UFRJ)
Repositório:Anuário do Instituto de Geociências (Online)
Idioma:português
OAI Identifier:oai:ojs.pkp.sfu.ca:article/38583
Acesso em linha:https://revistas.ufrj.br/index.php/aigeo/article/view/38583
Access Level:Acceso aberto
Palavra-chave:Southern Urucuia Aquifer System
hydrogeochemical evolution
stable isotopes
id BR_61c93fc3ab186c3a0f934c8b2e2c1db4
oai_identifier_str oai:ojs.pkp.sfu.ca:article/38583
network_acronym_str BR
network_name_str Brasil
repository_id_str
dc.title.none.fl_str_mv Hydrogeochemical and Isotopic (δ2H-δ18O) Investigations of Hydrologic Dynamics of the Southern Urucuia Aquifer System, Brazil
Hydrogeochemical and Isotopic (δ2H-δ18O) Investigations of Hydrologic Dynamics of the Southern Urucuia Aquifer System, Brazil
title Hydrogeochemical and Isotopic (δ2H-δ18O) Investigations of Hydrologic Dynamics of the Southern Urucuia Aquifer System, Brazil
spellingShingle Hydrogeochemical and Isotopic (δ2H-δ18O) Investigations of Hydrologic Dynamics of the Southern Urucuia Aquifer System, Brazil
Barbosa, Natanael da Silva
Southern Urucuia Aquifer System
hydrogeochemical evolution
stable isotopes
Southern Urucuia Aquifer System
hydrogeochemical evolution
stable isotopes
title_short Hydrogeochemical and Isotopic (δ2H-δ18O) Investigations of Hydrologic Dynamics of the Southern Urucuia Aquifer System, Brazil
title_full Hydrogeochemical and Isotopic (δ2H-δ18O) Investigations of Hydrologic Dynamics of the Southern Urucuia Aquifer System, Brazil
title_fullStr Hydrogeochemical and Isotopic (δ2H-δ18O) Investigations of Hydrologic Dynamics of the Southern Urucuia Aquifer System, Brazil
title_full_unstemmed Hydrogeochemical and Isotopic (δ2H-δ18O) Investigations of Hydrologic Dynamics of the Southern Urucuia Aquifer System, Brazil
title_sort Hydrogeochemical and Isotopic (δ2H-δ18O) Investigations of Hydrologic Dynamics of the Southern Urucuia Aquifer System, Brazil
dc.creator.none.fl_str_mv Barbosa, Natanael da Silva
Leal, Luiz Rogério Bastos
Barbosa, Natali da Silva
Klammler, Harald
Santos, Rafael Lima dos Santos
Zucchi, Maria do Rosário
author Barbosa, Natanael da Silva
author_facet Barbosa, Natanael da Silva
Leal, Luiz Rogério Bastos
Barbosa, Natali da Silva
Klammler, Harald
Santos, Rafael Lima dos Santos
Zucchi, Maria do Rosário
author_role author
author2 Leal, Luiz Rogério Bastos
Barbosa, Natali da Silva
Klammler, Harald
Santos, Rafael Lima dos Santos
Zucchi, Maria do Rosário
author2_role author
author
author
author
author
dc.subject.por.fl_str_mv Southern Urucuia Aquifer System
hydrogeochemical evolution
stable isotopes
Southern Urucuia Aquifer System
hydrogeochemical evolution
stable isotopes
topic Southern Urucuia Aquifer System
hydrogeochemical evolution
stable isotopes
Southern Urucuia Aquifer System
hydrogeochemical evolution
stable isotopes
description The integration of hydrogeochemical and isotopic data (δ2H-δ18O) allowed the reconstruction of the hydrological dynamics of Southern Urucuia Aquifer System. This system is a combination of aquifers that are responsible for the perennity of the rivers during the rainy recession. In this study, water samples were collected from three sources: rainfall, rivers and pumping wells. The hydrogeochemical data lead to subdivide the aquifers in three main types: regional unconfined, confined, and unconfined with deep water level. The unconfined aquifer with deep water level originates from an groundwater flow deflection in the westernmost portion of the study area. The occurrence of silicified and fractured levels divide the aquifer types and represents a mixing and interfaced zone, allowing a leakage between aquifers and a great variability of hydrogeochemical facies. The hydrogeochemical evolution occurs by local, intermediate and regional flow systems. The buildup of dissolved solids is the major controlling mechanism of the groundwater composition represented by the systematic changes of anion species from HCO3 to SO4 to Cl, and cationic exchange between Ca and Na. The discharge occurs through the baseflow of rivers, which have hybrid composition between regional unconfined and confined aquifer from Na-Ca-Cl to Na-Cl. The analysis of stable isotopes shows that the surface water and groundwater are located in the same range of values, which indicates a connection between the reservoirs. During the rainy season, the regional unconfined isotopic composition becomes similar to the precipitation isotopic composition, with the main recharge occurring mostly by direct infiltration of rainwater. However, there is a modification of this composition in the dry season due to strong isotopic enrichment caused by the evaporation process. The seasonal variation in the isotopic composition represents a continuous cycle. In other words, as the rainy season approaches, the atmospheric air column becomes increasingly saturated with water vapor, what results in a considerably diminishment of evaporation.
publishDate 2020
dc.date.none.fl_str_mv 2020-09-30
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufrj.br/index.php/aigeo/article/view/38583
10.11137/2020_3_334_344
url https://revistas.ufrj.br/index.php/aigeo/article/view/38583
identifier_str_mv 10.11137/2020_3_334_344
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufrj.br/index.php/aigeo/article/view/38583/21146
dc.rights.driver.fl_str_mv Copyright (c) 2020 Anuário do Instituto de Geociências
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Anuário do Instituto de Geociências
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal do Rio de Janeiro
publisher.none.fl_str_mv Universidade Federal do Rio de Janeiro
dc.source.none.fl_str_mv Anuário do Instituto de Geociências; v. 43 n. 3 (2020); 334_344
Anuário do Instituto de Geociências; Vol. 43 No. 3 (2020); 334_344
1982-3908
0101-9759
reponame:Anuário do Instituto de Geociências (Online)
instname:Universidade Federal do Rio de Janeiro (UFRJ)
instacron:UFRJ
instname_str Universidade Federal do Rio de Janeiro (UFRJ)
instacron_str UFRJ
institution UFRJ
reponame_str Anuário do Instituto de Geociências (Online)
collection Anuário do Instituto de Geociências (Online)
repository.name.fl_str_mv Anuário do Instituto de Geociências (Online) - Universidade Federal do Rio de Janeiro (UFRJ)
repository.mail.fl_str_mv anuario@igeo.ufrj.br||
_version_ 1853662037539815424
spelling Hydrogeochemical and Isotopic (δ2H-δ18O) Investigations of Hydrologic Dynamics of the Southern Urucuia Aquifer System, BrazilHydrogeochemical and Isotopic (δ2H-δ18O) Investigations of Hydrologic Dynamics of the Southern Urucuia Aquifer System, BrazilSouthern Urucuia Aquifer Systemhydrogeochemical evolutionstable isotopesSouthern Urucuia Aquifer Systemhydrogeochemical evolutionstable isotopesThe integration of hydrogeochemical and isotopic data (δ2H-δ18O) allowed the reconstruction of the hydrological dynamics of Southern Urucuia Aquifer System. This system is a combination of aquifers that are responsible for the perennity of the rivers during the rainy recession. In this study, water samples were collected from three sources: rainfall, rivers and pumping wells. The hydrogeochemical data lead to subdivide the aquifers in three main types: regional unconfined, confined, and unconfined with deep water level. The unconfined aquifer with deep water level originates from an groundwater flow deflection in the westernmost portion of the study area. The occurrence of silicified and fractured levels divide the aquifer types and represents a mixing and interfaced zone, allowing a leakage between aquifers and a great variability of hydrogeochemical facies. The hydrogeochemical evolution occurs by local, intermediate and regional flow systems. The buildup of dissolved solids is the major controlling mechanism of the groundwater composition represented by the systematic changes of anion species from HCO3 to SO4 to Cl, and cationic exchange between Ca and Na. The discharge occurs through the baseflow of rivers, which have hybrid composition between regional unconfined and confined aquifer from Na-Ca-Cl to Na-Cl. The analysis of stable isotopes shows that the surface water and groundwater are located in the same range of values, which indicates a connection between the reservoirs. During the rainy season, the regional unconfined isotopic composition becomes similar to the precipitation isotopic composition, with the main recharge occurring mostly by direct infiltration of rainwater. However, there is a modification of this composition in the dry season due to strong isotopic enrichment caused by the evaporation process. The seasonal variation in the isotopic composition represents a continuous cycle. In other words, as the rainy season approaches, the atmospheric air column becomes increasingly saturated with water vapor, what results in a considerably diminishment of evaporation.The integration of hydrogeochemical and isotopic data (δ2H-δ18O) allowed the reconstruction of the hydrological dynamics of Southern Urucuia Aquifer System. This system is a combination of aquifers that are responsible for the perennity of the rivers during the rainy recession. In this study, water samples were collected from three sources: rainfall, rivers and pumping wells. The hydrogeochemical data lead to subdivide the aquifers in three main types: regional unconfined, confined, and unconfined with deep water level. The unconfined aquifer with deep water level originates from an groundwater flow deflection in the westernmost portion of the study area. The occurrence of silicified and fractured levels divide the aquifer types and represents a mixing and interfaced zone, allowing a leakage between aquifers and a great variability of hydrogeochemical facies. The hydrogeochemical evolution occurs by local, intermediate and regional flow systems. The buildup of dissolved solids is the major controlling mechanism of the groundwater composition represented by the systematic changes of anion species from HCO3 to SO4 to Cl, and cationic exchange between Ca and Na. The discharge occurs through the baseflow of rivers, which have hybrid composition between regional unconfined and confined aquifer from Na-Ca-Cl to Na-Cl. The analysis of stable isotopes shows that the surface water and groundwater are located in the same range of values, which indicates a connection between the reservoirs. During the rainy season, the regional unconfined isotopic composition becomes similar to the precipitation isotopic composition, with the main recharge occurring mostly by direct infiltration of rainwater. However, there is a modification of this composition in the dry season due to strong isotopic enrichment caused by the evaporation process. The seasonal variation in the isotopic composition represents a continuous cycle. In other words, as the rainy season approaches, the atmospheric air column becomes increasingly saturated with water vapor, what results in a considerably diminishment of evaporation.Universidade Federal do Rio de Janeiro2020-09-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistas.ufrj.br/index.php/aigeo/article/view/3858310.11137/2020_3_334_344Anuário do Instituto de Geociências; v. 43 n. 3 (2020); 334_344Anuário do Instituto de Geociências; Vol. 43 No. 3 (2020); 334_3441982-39080101-9759reponame:Anuário do Instituto de Geociências (Online)instname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJporhttps://revistas.ufrj.br/index.php/aigeo/article/view/38583/21146Copyright (c) 2020 Anuário do Instituto de Geociênciasinfo:eu-repo/semantics/openAccessBarbosa, Natanael da SilvaLeal, Luiz Rogério BastosBarbosa, Natali da SilvaKlammler, HaraldSantos, Rafael Lima dos SantosZucchi, Maria do Rosário2024-05-13T17:12:15Zoai:ojs.pkp.sfu.ca:article/38583Revistahttps://revistas.ufrj.br/index.php/aigeo/indexPUBhttps://revistas.ufrj.br/index.php/aigeo/oaianuario@igeo.ufrj.br||1982-39080101-9759opendoar:2024-05-13T17:12:15Anuário do Instituto de Geociências (Online) - Universidade Federal do Rio de Janeiro (UFRJ)false
score 15,301629

Registros relacionados