Estimation of total groundwater reserves and delineation of weathered/fault zones for aquifer potential: A case study from the Federal District of Brazil
In the Federal District of Brazil, groundwater extraction is challenged by fractured aquifers with difficulty in identification of hydraulic traps and significant uncertainty in the estimation of recharge potential. This study aims to optimize the demarcation of new locations of tubular wells by the...
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De Gruyter
2021
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oai:doaj.org-article:bf90d522da154acdbbcda719b9c723892021-12-05T14:10:48ZEstimation of total groundwater reserves and delineation of weathered/fault zones for aquifer potential: A case study from the Federal District of Brazil2391-544710.1515/geo-2020-0226https://doaj.org/article/bf90d522da154acdbbcda719b9c723892021-08-01T00:00:00Zhttps://doi.org/10.1515/geo-2020-0226https://doaj.org/toc/2391-5447In the Federal District of Brazil, groundwater extraction is challenged by fractured aquifers with difficulty in identification of hydraulic traps and significant uncertainty in the estimation of recharge potential. This study aims to optimize the demarcation of new locations of tubular wells by the aid of geophysical investigation. In the first stage of this study, the total exploitable amount of groundwater were calculated from the information of the physical environment and the existing wells. Second, electrical resistivity tomography (ERT) method was carried out on the selected sites – based on their surficial characteristics. The possible hydraulic traps (where groundwater might exist) were identified from the inversion of the resistivity measured by the dipole–dipole array and from the delineation of the resultant conducting zones (including the weathered rocks and fractures). Using this approach, we predicted the position and number of tubular wells required and ranked them according to their potential productivity. The study provides a promising framework for investigating groundwater in fractured aquifers.Hussain YawarBorges WelitomUagoda RogerioMoura CristianeMaciel SusanneHamza OmarHavenith Hans-BalderDe Gruyterarticleertfracturegroundwaterenvironmental factortubular wellsGeologyQE1-996.5ENOpen Geosciences, Vol 13, Iss 1, Pp 904-916 (2021) |
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ert fracture groundwater environmental factor tubular wells Geology QE1-996.5 |
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ert fracture groundwater environmental factor tubular wells Geology QE1-996.5 Hussain Yawar Borges Welitom Uagoda Rogerio Moura Cristiane Maciel Susanne Hamza Omar Havenith Hans-Balder Estimation of total groundwater reserves and delineation of weathered/fault zones for aquifer potential: A case study from the Federal District of Brazil |
description |
In the Federal District of Brazil, groundwater extraction is challenged by fractured aquifers with difficulty in identification of hydraulic traps and significant uncertainty in the estimation of recharge potential. This study aims to optimize the demarcation of new locations of tubular wells by the aid of geophysical investigation. In the first stage of this study, the total exploitable amount of groundwater were calculated from the information of the physical environment and the existing wells. Second, electrical resistivity tomography (ERT) method was carried out on the selected sites – based on their surficial characteristics. The possible hydraulic traps (where groundwater might exist) were identified from the inversion of the resistivity measured by the dipole–dipole array and from the delineation of the resultant conducting zones (including the weathered rocks and fractures). Using this approach, we predicted the position and number of tubular wells required and ranked them according to their potential productivity. The study provides a promising framework for investigating groundwater in fractured aquifers. |
format |
article |
author |
Hussain Yawar Borges Welitom Uagoda Rogerio Moura Cristiane Maciel Susanne Hamza Omar Havenith Hans-Balder |
author_facet |
Hussain Yawar Borges Welitom Uagoda Rogerio Moura Cristiane Maciel Susanne Hamza Omar Havenith Hans-Balder |
author_sort |
Hussain Yawar |
title |
Estimation of total groundwater reserves and delineation of weathered/fault zones for aquifer potential: A case study from the Federal District of Brazil |
title_short |
Estimation of total groundwater reserves and delineation of weathered/fault zones for aquifer potential: A case study from the Federal District of Brazil |
title_full |
Estimation of total groundwater reserves and delineation of weathered/fault zones for aquifer potential: A case study from the Federal District of Brazil |
title_fullStr |
Estimation of total groundwater reserves and delineation of weathered/fault zones for aquifer potential: A case study from the Federal District of Brazil |
title_full_unstemmed |
Estimation of total groundwater reserves and delineation of weathered/fault zones for aquifer potential: A case study from the Federal District of Brazil |
title_sort |
estimation of total groundwater reserves and delineation of weathered/fault zones for aquifer potential: a case study from the federal district of brazil |
publisher |
De Gruyter |
publishDate |
2021 |
url |
https://doaj.org/article/bf90d522da154acdbbcda719b9c72389 |
work_keys_str_mv |
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