Hydrochemical and isotopic characterization of groundwather in the southwest region of quadrilatero ferrifero in Congonhas-MG and its correlation with aquifer units deepness in this system
This paper presents an analysis of hydrochemistry and isotopic data of Caue Aquifer’s waters in the Congonhas area in MG. Its objective is to characterize the aquifer and understand the water dynamics. Three water groups were identified and differentiated from each other by their ions concentration....
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2018 |
| País: | Brasil |
| Institución: | Associação Brasileira de Águas Subterrâneas |
| Repositorio: | Águas Subterrâneas (São Paulo. Online) |
| Idioma: | portugués |
| OAI Identifier: | oai:ojs.aguassubterraneas.abas.org:article/28970 |
| Acceso en línea: | https://aguassubterraneas.abas.org/asubterraneas/article/view/28970 |
| Access Level: | acceso abierto |
| Palabra clave: | Cauê aquifer. Hydrochemistry. Isotopic dating. Hydrogeology. Aquífero Cauê. Hidroquímica. Datação isotópica. Hidrogeologia. |
| Sumario: | This paper presents an analysis of hydrochemistry and isotopic data of Caue Aquifer’s waters in the Congonhas area in MG. Its objective is to characterize the aquifer and understand the water dynamics. Three water groups were identified and differentiated from each other by their ions concentration. The methodology applied consisted on the analysis of four sampling campaigns carried out in the years 2004, 2006, 2010 and 2013. The hydrochemical results were treated in the AquaChem software through water classification diagrams. The isotopic results were evaluated and correlated with the location quota of the samples. Group 1 has the samples with the highest ion concentration while Group 3 has the lowest one. Waters are mostly classified as Bicarbonate-calcium-magnesium type, lightly acidics to neutral. Tritium concentration varies from 1.8 UT to less than 0.2 UT. This data allows to differentiate waters based on tritium concentration versus deepness. Anomalies found are related to faults controled waterflow. |
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