Hydrogeochemistry as a tool for the assessment of aquifers in gaps of lithological well profiles

The study area is located 30 km north of Belo Horizonte, and includes the entire Lagoa Santa Karst Environmental Protection Area and its surroundings. It represents an area of 505 km². The karst-fissure aquifer, developed in carbonated rocks of inferior (impure) and superior (pure) members of Sete L...

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Authors: Vieira, Luisa Costa Martins, Velasquez, Leila Nunes Menegasse, Borba, Ricardo Perobelli
Format: article
Status:Published version
Publication Date:2020
Country:Brasil
Institution:Associação Brasileira de Águas Subterrâneas
Repository:Águas Subterrâneas (São Paulo. Online)
Language:Portuguese
OAI Identifier:oai:ojs.aguassubterraneas.abas.org:article/29764
Online Access:https://aguassubterraneas.abas.org/asubterraneas/article/view/29764
Access Level:Open access
Keyword:EPA Lagoa Santa Karst. Hydrogeochemistry. Karst Aquifers. Statistic.
APA Carste de Lagoa Santa. Hidrogeoquímica. Aquíferos cárstico-fissurais. Estatística.
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spelling Hydrogeochemistry as a tool for the assessment of aquifers in gaps of lithological well profilesHidrogeoquímica como ferramenta para o reconhecimento de aquíferos em lacunas de perfis litológicos de poços tubularesEPA Lagoa Santa Karst. Hydrogeochemistry. Karst Aquifers. Statistic.APA Carste de Lagoa Santa. Hidrogeoquímica. Aquíferos cárstico-fissurais. Estatística.The study area is located 30 km north of Belo Horizonte, and includes the entire Lagoa Santa Karst Environmental Protection Area and its surroundings. It represents an area of 505 km². The karst-fissure aquifer, developed in carbonated rocks of inferior (impure) and superior (pure) members of Sete Lagoas Formation – Pedro Leopoldo and Lagoa Santa respectively, is the most exploited. The other aquifers, which are comparably less explored, are the ones in metapelites of Serra de Santa Helena Formation, granites of Belo Horizonte Complex and granular overburden. Despite the large number of operating tube wells in this area, lithological description from rock loggings is precarious, which compromises their use in hydrogeological studies. In order to overcome this problem, hydrochemical results obtained and available lithological data were used. These are sourced from 21 sub-superficial and 85 deep circulation water samples. Piper and Stiff diagrams and statistical treatment of data, including Boxplots and Cluster analysis, were used in the study to classify groundwater according to its source. The classification proved to be effective, especially in the separation of silica and carbonate units. Further analysis can emphasize difference between both carbonated units.A área estudada, situada 30 km a norte de Belo Horizonte, engloba toda Área de Proteção Ambiental Carste de Lagoa Santa e arredores, perfazendo 505 km². Os aquíferos cárstico-fissurais, desenvolvidos nas rochas carbonáticas dos membros inferior (impuro) e superior (puro) da Formação Sete Lagoas - Pedro Leopoldo e Lagoa Santa, respectivamente, são mais explorados, seguidos dos fissurais em metapelitos da Formação Serra de Santa Helena, granitos do embasamento do Complexo Belo Horizonte, e granulares de cobertura. Apesar do grande número de poços tubulares operantes, ocorre grande precariedade de descrição litológica nos perfis desses poços, comprometendo sua utilização. Visando ladear esse problema, segundo resultados hidroquímicos obtidos e dados litológicos disponíveis, classificou-se, por unidades aquíferas, 21 amostras de água sub-superficial, e 85 de circulação profunda. A divisão foi avaliada por diagramas de Piper e Stiff e tratamento estatístico dos dados, incluindo Boxplots e análise de Cluster. A classificação mostrou-se eficaz, especialmente na separação das unidades silicáticas e carbonáticas. A distinção entre as duas unidades carbonáticas pode ser ampliada com análises complementares.ABAS - Associação Brasileira de Águas Subterrâneas2020-07-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://aguassubterraneas.abas.org/asubterraneas/article/view/2976410.14295/ras.v34i2.29764Águas Subterrâneas; v. 34 n. 2 (2020): REVISTA ÁGUAS SUBTERRÂNEAS; 204-2202179-97840101-7004reponame:Águas Subterrâneas (São Paulo. Online)instname:Associação Brasileira de Águas Subterrâneasinstacron:ABASporhttps://aguassubterraneas.abas.org/asubterraneas/article/view/29764/19316Copyright (c) 2020 Águas Subterrâneasinfo:eu-repo/semantics/openAccessVieira, Luisa Costa MartinsVelasquez, Leila Nunes MenegasseBorba, Ricardo Perobelli2020-07-25T01:43:13Zoai:ojs.aguassubterraneas.abas.org:article/29764Revistahttps://aguassubterraneas.abas.org/asubterraneas/ONGhttps://aguassubterraneas.abas.org/asubterraneas/oaihidropaulo@gmail.com2179-97840101-7004opendoar:2020-07-25T01:43:13Águas Subterrâneas (São Paulo. Online) - Associação Brasileira de Águas Subterrâneasfalse
dc.title.none.fl_str_mv Hydrogeochemistry as a tool for the assessment of aquifers in gaps of lithological well profiles
Hidrogeoquímica como ferramenta para o reconhecimento de aquíferos em lacunas de perfis litológicos de poços tubulares
title Hydrogeochemistry as a tool for the assessment of aquifers in gaps of lithological well profiles
spellingShingle Hydrogeochemistry as a tool for the assessment of aquifers in gaps of lithological well profiles
Vieira, Luisa Costa Martins
EPA Lagoa Santa Karst. Hydrogeochemistry. Karst Aquifers. Statistic.
APA Carste de Lagoa Santa. Hidrogeoquímica. Aquíferos cárstico-fissurais. Estatística.
title_short Hydrogeochemistry as a tool for the assessment of aquifers in gaps of lithological well profiles
title_full Hydrogeochemistry as a tool for the assessment of aquifers in gaps of lithological well profiles
title_fullStr Hydrogeochemistry as a tool for the assessment of aquifers in gaps of lithological well profiles
title_full_unstemmed Hydrogeochemistry as a tool for the assessment of aquifers in gaps of lithological well profiles
title_sort Hydrogeochemistry as a tool for the assessment of aquifers in gaps of lithological well profiles
dc.creator.none.fl_str_mv Vieira, Luisa Costa Martins
Velasquez, Leila Nunes Menegasse
Borba, Ricardo Perobelli
author Vieira, Luisa Costa Martins
author_facet Vieira, Luisa Costa Martins
Velasquez, Leila Nunes Menegasse
Borba, Ricardo Perobelli
author_role author
author2 Velasquez, Leila Nunes Menegasse
Borba, Ricardo Perobelli
author2_role author
author
dc.subject.por.fl_str_mv EPA Lagoa Santa Karst. Hydrogeochemistry. Karst Aquifers. Statistic.
APA Carste de Lagoa Santa. Hidrogeoquímica. Aquíferos cárstico-fissurais. Estatística.
topic EPA Lagoa Santa Karst. Hydrogeochemistry. Karst Aquifers. Statistic.
APA Carste de Lagoa Santa. Hidrogeoquímica. Aquíferos cárstico-fissurais. Estatística.
description The study area is located 30 km north of Belo Horizonte, and includes the entire Lagoa Santa Karst Environmental Protection Area and its surroundings. It represents an area of 505 km². The karst-fissure aquifer, developed in carbonated rocks of inferior (impure) and superior (pure) members of Sete Lagoas Formation – Pedro Leopoldo and Lagoa Santa respectively, is the most exploited. The other aquifers, which are comparably less explored, are the ones in metapelites of Serra de Santa Helena Formation, granites of Belo Horizonte Complex and granular overburden. Despite the large number of operating tube wells in this area, lithological description from rock loggings is precarious, which compromises their use in hydrogeological studies. In order to overcome this problem, hydrochemical results obtained and available lithological data were used. These are sourced from 21 sub-superficial and 85 deep circulation water samples. Piper and Stiff diagrams and statistical treatment of data, including Boxplots and Cluster analysis, were used in the study to classify groundwater according to its source. The classification proved to be effective, especially in the separation of silica and carbonate units. Further analysis can emphasize difference between both carbonated units.
publishDate 2020
dc.date.none.fl_str_mv 2020-07-09
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://aguassubterraneas.abas.org/asubterraneas/article/view/29764
10.14295/ras.v34i2.29764
url https://aguassubterraneas.abas.org/asubterraneas/article/view/29764
identifier_str_mv 10.14295/ras.v34i2.29764
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://aguassubterraneas.abas.org/asubterraneas/article/view/29764/19316
dc.rights.driver.fl_str_mv Copyright (c) 2020 Águas Subterrâneas
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Águas Subterrâneas
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv ABAS - Associação Brasileira de Águas Subterrâneas
publisher.none.fl_str_mv ABAS - Associação Brasileira de Águas Subterrâneas
dc.source.none.fl_str_mv Águas Subterrâneas; v. 34 n. 2 (2020): REVISTA ÁGUAS SUBTERRÂNEAS; 204-220
2179-9784
0101-7004
reponame:Águas Subterrâneas (São Paulo. Online)
instname:Associação Brasileira de Águas Subterrâneas
instacron:ABAS
instname_str Associação Brasileira de Águas Subterrâneas
instacron_str ABAS
institution ABAS
reponame_str Águas Subterrâneas (São Paulo. Online)
collection Águas Subterrâneas (São Paulo. Online)
repository.name.fl_str_mv Águas Subterrâneas (São Paulo. Online) - Associação Brasileira de Águas Subterrâneas
repository.mail.fl_str_mv hidropaulo@gmail.com
_version_ 1853662882912272384
score 15,301603

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