Study of Generation and Underground Flow of Acid Mine Drainage in Waste Rock Pile in an Uranium Mine Using Electrical Resistivity Tomography
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s00024-019-02351-9 http://hdl.handle.net/11449/198127 |
Resumo: | Mineral exploration is often associated with the generation of environmental liabilities, whose potential damages might imperil local water quality. An example of these environmental impacts is the acid mine drainage—AMD, caused by sulfides oxidation and production of acid and saline effluents. The analysis of critical areas with generation and spread of contamination plumes becomes more feasible due to the possibility to obtain geophysical models of water systems, especially to identify regions with accumulation of reactive minerals and preferential water flows. The rock-waste pile named BF-04 fits in this context of contamination, and it was studied based on the Electrical Resistivity Tomography technique, inversion models and isosurface models, providing conditions to recognize sulfide zones (> 10.1 mV/V), whereas chaotic high salt content underground flows, along several depths, were identified by low resistivity zones (< 75.8 Ω m). The complex behavior of groundwater flow in this kind of artificial granular aquifer is caused by its granulometric and lithologic heterogeneities, and compacted material. In addition, the results reveled a substantial water infiltration from Consulta creek, however the most critic zones for AMD generation are located at shallow levels where the waste rock material is more exposed to atmospheric O2 and meteoric water infiltration. The bedrock was not associated with significant low resistivity anomalies, which means that its contribution to AMD generation was considered relatively less important. The results will contribute to the environmental remediation management and also to demonstrate the potential applicability of geophysical methods in mining wastes. |
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Study of Generation and Underground Flow of Acid Mine Drainage in Waste Rock Pile in an Uranium Mine Using Electrical Resistivity TomographyaquifercontaminationDC resistivityinduced polarizationSulfidesMineral exploration is often associated with the generation of environmental liabilities, whose potential damages might imperil local water quality. An example of these environmental impacts is the acid mine drainage—AMD, caused by sulfides oxidation and production of acid and saline effluents. The analysis of critical areas with generation and spread of contamination plumes becomes more feasible due to the possibility to obtain geophysical models of water systems, especially to identify regions with accumulation of reactive minerals and preferential water flows. The rock-waste pile named BF-04 fits in this context of contamination, and it was studied based on the Electrical Resistivity Tomography technique, inversion models and isosurface models, providing conditions to recognize sulfide zones (> 10.1 mV/V), whereas chaotic high salt content underground flows, along several depths, were identified by low resistivity zones (< 75.8 Ω m). The complex behavior of groundwater flow in this kind of artificial granular aquifer is caused by its granulometric and lithologic heterogeneities, and compacted material. In addition, the results reveled a substantial water infiltration from Consulta creek, however the most critic zones for AMD generation are located at shallow levels where the waste rock material is more exposed to atmospheric O2 and meteoric water infiltration. The bedrock was not associated with significant low resistivity anomalies, which means that its contribution to AMD generation was considered relatively less important. The results will contribute to the environmental remediation management and also to demonstrate the potential applicability of geophysical methods in mining wastes.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Geosciences and Exact Sciences Institute (IGCE) São Paulo State University (UNESP), 24-A avenue, 1515, Bela VistaGeosciences and Exact Sciences Institute (IGCE) São Paulo State University (UNESP), 24-A avenue, 1515, Bela VistaFAPESP: 2018/14565-3Universidade Estadual Paulista (Unesp)Casagrande, Matheus Felipe Stanfoca [UNESP]Moreira, César Augusto [UNESP]Targa, Débora Andrade [UNESP]2020-12-12T00:59:53Z2020-12-12T00:59:53Z2020-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article703-721http://dx.doi.org/10.1007/s00024-019-02351-9Pure and Applied Geophysics, v. 177, n. 2, p. 703-721, 2020.1420-91360033-4553http://hdl.handle.net/11449/19812710.1007/s00024-019-02351-92-s2.0-8507485789690868573123910800000-0002-6949-6679Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPure and Applied Geophysicsinfo:eu-repo/semantics/openAccess2021-10-23T08:59:37Zoai:repositorio.unesp.br:11449/198127Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T08:59:37Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Study of Generation and Underground Flow of Acid Mine Drainage in Waste Rock Pile in an Uranium Mine Using Electrical Resistivity Tomography |
title |
Study of Generation and Underground Flow of Acid Mine Drainage in Waste Rock Pile in an Uranium Mine Using Electrical Resistivity Tomography |
spellingShingle |
Study of Generation and Underground Flow of Acid Mine Drainage in Waste Rock Pile in an Uranium Mine Using Electrical Resistivity Tomography Casagrande, Matheus Felipe Stanfoca [UNESP] aquifer contamination DC resistivity induced polarization Sulfides |
title_short |
Study of Generation and Underground Flow of Acid Mine Drainage in Waste Rock Pile in an Uranium Mine Using Electrical Resistivity Tomography |
title_full |
Study of Generation and Underground Flow of Acid Mine Drainage in Waste Rock Pile in an Uranium Mine Using Electrical Resistivity Tomography |
title_fullStr |
Study of Generation and Underground Flow of Acid Mine Drainage in Waste Rock Pile in an Uranium Mine Using Electrical Resistivity Tomography |
title_full_unstemmed |
Study of Generation and Underground Flow of Acid Mine Drainage in Waste Rock Pile in an Uranium Mine Using Electrical Resistivity Tomography |
title_sort |
Study of Generation and Underground Flow of Acid Mine Drainage in Waste Rock Pile in an Uranium Mine Using Electrical Resistivity Tomography |
author |
Casagrande, Matheus Felipe Stanfoca [UNESP] |
author_facet |
Casagrande, Matheus Felipe Stanfoca [UNESP] Moreira, César Augusto [UNESP] Targa, Débora Andrade [UNESP] |
author_role |
author |
author2 |
Moreira, César Augusto [UNESP] Targa, Débora Andrade [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Casagrande, Matheus Felipe Stanfoca [UNESP] Moreira, César Augusto [UNESP] Targa, Débora Andrade [UNESP] |
dc.subject.por.fl_str_mv |
aquifer contamination DC resistivity induced polarization Sulfides |
topic |
aquifer contamination DC resistivity induced polarization Sulfides |
description |
Mineral exploration is often associated with the generation of environmental liabilities, whose potential damages might imperil local water quality. An example of these environmental impacts is the acid mine drainage—AMD, caused by sulfides oxidation and production of acid and saline effluents. The analysis of critical areas with generation and spread of contamination plumes becomes more feasible due to the possibility to obtain geophysical models of water systems, especially to identify regions with accumulation of reactive minerals and preferential water flows. The rock-waste pile named BF-04 fits in this context of contamination, and it was studied based on the Electrical Resistivity Tomography technique, inversion models and isosurface models, providing conditions to recognize sulfide zones (> 10.1 mV/V), whereas chaotic high salt content underground flows, along several depths, were identified by low resistivity zones (< 75.8 Ω m). The complex behavior of groundwater flow in this kind of artificial granular aquifer is caused by its granulometric and lithologic heterogeneities, and compacted material. In addition, the results reveled a substantial water infiltration from Consulta creek, however the most critic zones for AMD generation are located at shallow levels where the waste rock material is more exposed to atmospheric O2 and meteoric water infiltration. The bedrock was not associated with significant low resistivity anomalies, which means that its contribution to AMD generation was considered relatively less important. The results will contribute to the environmental remediation management and also to demonstrate the potential applicability of geophysical methods in mining wastes. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T00:59:53Z 2020-12-12T00:59:53Z 2020-02-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s00024-019-02351-9 Pure and Applied Geophysics, v. 177, n. 2, p. 703-721, 2020. 1420-9136 0033-4553 http://hdl.handle.net/11449/198127 10.1007/s00024-019-02351-9 2-s2.0-85074857896 9086857312391080 0000-0002-6949-6679 |
url |
http://dx.doi.org/10.1007/s00024-019-02351-9 http://hdl.handle.net/11449/198127 |
identifier_str_mv |
Pure and Applied Geophysics, v. 177, n. 2, p. 703-721, 2020. 1420-9136 0033-4553 10.1007/s00024-019-02351-9 2-s2.0-85074857896 9086857312391080 0000-0002-6949-6679 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pure and Applied Geophysics |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
703-721 |
dc.source.none.fl_str_mv |
Scopus 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 |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964480852983808 |