Integration of aerogammaspectrometric and ground electromagnetic data in a copper occurrences region in the extreme northwest of the camaquà basin, southern brazil
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.5016/geociencias.v40i03.16081 http://hdl.handle.net/11449/222733 |
Resumo: | In the different phases of prospective campaigns for metallic minerals such as copper, Geophysics acts as a support tool both in the recognition of new exploratory targets and the expansion of known deposits, due to the achievement of contrasts in physical properties between mineralizations and host rocks. The present study presents the results of the aerogammaspectrometry recognition phase, followed by the detailing of potential copper targets through the inductive terrestrial electromagnetic method in an area covered by the occurrences named Victor Teixeira and Capão Grande, both located to the interior of the municipality of Caçapava do Sul, in the state of Rio Grande do Sul, Brazil. The Victor Teixeira occurrence is part of the metamorphic rocks of the Sul-Riograndense Shield, while the one in Capão Grande has as its host the Camaquã Basin’s volcano-sedimentary lithotypes. The outcrop mineralization of both occurrences comprises carbonate disseminations predominantly in fractures. The aerial radiometric data allowed the demarcation of potassium-enriched areas associated with hydrothermal alteration products as indirect guides for the location of copper targets. The correlation of this potassium guide with high concentrations of thorium was also a promising indication. The apparent conductivity data obtained along the aeroradiometric targets made it possible to suggest the presence of copper sulfides in conductive areas in the metamorphic basement’s schists and the arcosian conglomeratic sandstones of the Camaquã Basin. |
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Integration of aerogammaspectrometric and ground electromagnetic data in a copper occurrences region in the extreme northwest of the camaquà basin, southern brazilIntegração de dados aerogamaespectrométricos e eletromagnéticos terrestres em região de ocorrências de cobre no extremo noroeste da bacia do camaquã, sul do brasilAerogammaspectrometryInductive electromagnetic profilesMineral prospectingSul-riograndense shieldIn the different phases of prospective campaigns for metallic minerals such as copper, Geophysics acts as a support tool both in the recognition of new exploratory targets and the expansion of known deposits, due to the achievement of contrasts in physical properties between mineralizations and host rocks. The present study presents the results of the aerogammaspectrometry recognition phase, followed by the detailing of potential copper targets through the inductive terrestrial electromagnetic method in an area covered by the occurrences named Victor Teixeira and Capão Grande, both located to the interior of the municipality of Caçapava do Sul, in the state of Rio Grande do Sul, Brazil. The Victor Teixeira occurrence is part of the metamorphic rocks of the Sul-Riograndense Shield, while the one in Capão Grande has as its host the Camaquã Basin’s volcano-sedimentary lithotypes. The outcrop mineralization of both occurrences comprises carbonate disseminations predominantly in fractures. The aerial radiometric data allowed the demarcation of potassium-enriched areas associated with hydrothermal alteration products as indirect guides for the location of copper targets. The correlation of this potassium guide with high concentrations of thorium was also a promising indication. The apparent conductivity data obtained along the aeroradiometric targets made it possible to suggest the presence of copper sulfides in conductive areas in the metamorphic basement’s schists and the arcosian conglomeratic sandstones of the Camaquã Basin.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Universidade Federal do Paraná, Avenida Coronel Francisco Heráclito dos Santos, 100 – Jardim das AméricasUniversidade Estadual Paulista, Avenida 24-A, 1.515. Bela VistaUniversidade Estadual Paulista, Avenida 24-A, 1.515. Bela VistaFAPESP: 2019/14565-3CNPq: 303826/2018-5Universidade Federal do Paraná (UFPR)Universidade Estadual Paulista (UNESP)Pereira, Henrique GarciaFerreira, Francisco José FonsecaMoreira, César Augusto [UNESP]2022-04-28T19:46:27Z2022-04-28T19:46:27Z2021-10-18info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article623-640http://dx.doi.org/10.5016/geociencias.v40i03.16081Geociencias, v. 40, n. 3, p. 623-640, 2021.1980-900X0101-9082http://hdl.handle.net/11449/22273310.5016/geociencias.v40i03.160812-s2.0-85117918062Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporGeocienciasinfo:eu-repo/semantics/openAccess2022-04-28T19:46:27Zoai:repositorio.unesp.br:11449/222733Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T19:46:27Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Integration of aerogammaspectrometric and ground electromagnetic data in a copper occurrences region in the extreme northwest of the camaquà basin, southern brazil Integração de dados aerogamaespectrométricos e eletromagnéticos terrestres em região de ocorrências de cobre no extremo noroeste da bacia do camaquã, sul do brasil |
title |
Integration of aerogammaspectrometric and ground electromagnetic data in a copper occurrences region in the extreme northwest of the camaquà basin, southern brazil |
spellingShingle |
Integration of aerogammaspectrometric and ground electromagnetic data in a copper occurrences region in the extreme northwest of the camaquà basin, southern brazil Pereira, Henrique Garcia Aerogammaspectrometry Inductive electromagnetic profiles Mineral prospecting Sul-riograndense shield |
title_short |
Integration of aerogammaspectrometric and ground electromagnetic data in a copper occurrences region in the extreme northwest of the camaquà basin, southern brazil |
title_full |
Integration of aerogammaspectrometric and ground electromagnetic data in a copper occurrences region in the extreme northwest of the camaquà basin, southern brazil |
title_fullStr |
Integration of aerogammaspectrometric and ground electromagnetic data in a copper occurrences region in the extreme northwest of the camaquà basin, southern brazil |
title_full_unstemmed |
Integration of aerogammaspectrometric and ground electromagnetic data in a copper occurrences region in the extreme northwest of the camaquà basin, southern brazil |
title_sort |
Integration of aerogammaspectrometric and ground electromagnetic data in a copper occurrences region in the extreme northwest of the camaquà basin, southern brazil |
author |
Pereira, Henrique Garcia |
author_facet |
Pereira, Henrique Garcia Ferreira, Francisco José Fonseca Moreira, César Augusto [UNESP] |
author_role |
author |
author2 |
Ferreira, Francisco José Fonseca Moreira, César Augusto [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Federal do Paraná (UFPR) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Pereira, Henrique Garcia Ferreira, Francisco José Fonseca Moreira, César Augusto [UNESP] |
dc.subject.por.fl_str_mv |
Aerogammaspectrometry Inductive electromagnetic profiles Mineral prospecting Sul-riograndense shield |
topic |
Aerogammaspectrometry Inductive electromagnetic profiles Mineral prospecting Sul-riograndense shield |
description |
In the different phases of prospective campaigns for metallic minerals such as copper, Geophysics acts as a support tool both in the recognition of new exploratory targets and the expansion of known deposits, due to the achievement of contrasts in physical properties between mineralizations and host rocks. The present study presents the results of the aerogammaspectrometry recognition phase, followed by the detailing of potential copper targets through the inductive terrestrial electromagnetic method in an area covered by the occurrences named Victor Teixeira and Capão Grande, both located to the interior of the municipality of Caçapava do Sul, in the state of Rio Grande do Sul, Brazil. The Victor Teixeira occurrence is part of the metamorphic rocks of the Sul-Riograndense Shield, while the one in Capão Grande has as its host the Camaquã Basin’s volcano-sedimentary lithotypes. The outcrop mineralization of both occurrences comprises carbonate disseminations predominantly in fractures. The aerial radiometric data allowed the demarcation of potassium-enriched areas associated with hydrothermal alteration products as indirect guides for the location of copper targets. The correlation of this potassium guide with high concentrations of thorium was also a promising indication. The apparent conductivity data obtained along the aeroradiometric targets made it possible to suggest the presence of copper sulfides in conductive areas in the metamorphic basement’s schists and the arcosian conglomeratic sandstones of the Camaquã Basin. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-10-18 2022-04-28T19:46:27Z 2022-04-28T19:46:27Z |
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/10.5016/geociencias.v40i03.16081 Geociencias, v. 40, n. 3, p. 623-640, 2021. 1980-900X 0101-9082 http://hdl.handle.net/11449/222733 10.5016/geociencias.v40i03.16081 2-s2.0-85117918062 |
url |
http://dx.doi.org/10.5016/geociencias.v40i03.16081 http://hdl.handle.net/11449/222733 |
identifier_str_mv |
Geociencias, v. 40, n. 3, p. 623-640, 2021. 1980-900X 0101-9082 10.5016/geociencias.v40i03.16081 2-s2.0-85117918062 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Geociencias |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
623-640 |
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 |
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1803046238759682048 |