Integrating geological and airborne geophysical data to review the cartography of rio itanguá batholith, araçuaí orogen, brazil
Autor(a) principal: | |
---|---|
Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFMG |
Texto Completo: | https://doi.org/10.1590/2317-4889201920190019 http://hdl.handle.net/1843/52193 https://orcid.org/0000-0002-7795-4852 https://orcid.org/0000-0003-2974-839X https://orcid.org/0000-0001-6944-3166 https://orcid.org/0000-0002-1999-862X |
Resumo: | Rio Itanguá Batholith (RIB) is a plutonic body located in the Northern border of Guanhães block, one of the various basement blocks reworked within the Araçuaí orogen, Eastern Brazil. Although its existence is known since the beginning of the 20th century, its tectonic history remains poorly understood. The RIB was mapped at 1:100,000 scale in the 1990s, before geophysical and satellite data became available. This work aims to re-evaluate the cartography of the RIB, as an initial step towards understanding its genesis and evolution. In order to do so, field and petrographic data, together with airborne gamma-ray spectrometry and magnetometry data, were integrated, resulting in a geologic map that shows different features from the previous maps produced in the area, such as the batholith division into two different petrographic and geophysical units; the presence of a mafic dike intruding the batholith rocks and the reduction in size of the batholith area. The magnetometric and gamma-spectrometric data proved to be important tools for geological mapping, and the substantial data obtained in the analysis of this tiny area points to the importance of re-evaluating older geological maps, taking geophysical data into account. |
id |
UFMG_984999012461362d975efcf164a6a9a0 |
---|---|
oai_identifier_str |
oai:repositorio.ufmg.br:1843/52193 |
network_acronym_str |
UFMG |
network_name_str |
Repositório Institucional da UFMG |
repository_id_str |
|
spelling |
2023-04-18T21:21:00Z2023-04-18T21:21:00Z2019493https://doi.org/10.1590/2317-48892019201900192317-4692http://hdl.handle.net/1843/52193https://orcid.org/0000-0002-7795-4852https://orcid.org/0000-0003-2974-839Xhttps://orcid.org/0000-0001-6944-3166https://orcid.org/0000-0002-1999-862XRio Itanguá Batholith (RIB) is a plutonic body located in the Northern border of Guanhães block, one of the various basement blocks reworked within the Araçuaí orogen, Eastern Brazil. Although its existence is known since the beginning of the 20th century, its tectonic history remains poorly understood. The RIB was mapped at 1:100,000 scale in the 1990s, before geophysical and satellite data became available. This work aims to re-evaluate the cartography of the RIB, as an initial step towards understanding its genesis and evolution. In order to do so, field and petrographic data, together with airborne gamma-ray spectrometry and magnetometry data, were integrated, resulting in a geologic map that shows different features from the previous maps produced in the area, such as the batholith division into two different petrographic and geophysical units; the presence of a mafic dike intruding the batholith rocks and the reduction in size of the batholith area. The magnetometric and gamma-spectrometric data proved to be important tools for geological mapping, and the substantial data obtained in the analysis of this tiny area points to the importance of re-evaluating older geological maps, taking geophysical data into account.O Batólito Rio Itanguá (RIB) é um corpo plutônico localizado na borda norte do bloco Guanhães, um dos vários blocos de embasamento retrabalhados dentro do orógeno Araçuaí, leste do Brasil. Embora sua existência seja conhecida desde o início do século XX, sua história tectônica permanece mal compreendida. O RIB foi mapeado na escala 1:100.000 na década de 1990, antes que os dados geofísicos e de satélite se tornassem disponíveis. Este trabalho pretende reavaliar a cartografia da RIB, como um passo inicial para a compreensão da sua génese e evolução. A fim de fazê-lo, dados de campo e petrográficos, juntamente com espectrometria de raios gama aerotransportados e dados de magnetometria, foram integrados, resultando em um mapa geológico que mostra feições diferentes dos mapas anteriores produzidos na área, como a divisão do batólito em dois petrográficos diferentes e unidades geofísicas; a presença de um dique máfico intrudindo as rochas batolíticas e a redução do tamanho da área batolítica. Os dados magnetométricos e espectrométricos gama mostraram-se importantes ferramentas para o mapeamento geológico, e os dados substanciais obtidos na análise desta pequena área aponta para a importância de reavaliar mapas geológicos mais antigos, levando em conta dados geofísicos.CNPq - Conselho Nacional de Desenvolvimento Científico e TecnológicoengUniversidade Federal de Minas GeraisUFMGBrasilIGC - DEPARTAMENTO DE GEOLOGIABrazilian Journal of GeologyRochas igneasMapeamento geologicoEspectrometria de raio gamaCartografiaRio Itanguá BatholithGeological mappingGamma-ray spectrometryMagnetometryGuanhães BlockAraçuaí OrogenIntegrating geological and airborne geophysical data to review the cartography of rio itanguá batholith, araçuaí orogen, brazilIntegração geológica e aerotransportada de dados geofísicos para revisar a cartografia de Batólito Rio Itanguá, Orógeno Araçuaí, Brasilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://www.scielo.br/j/bjgeo/a/6yyK9Qr6BL5SymHXTTvYWDh/?lang=enJulia GrochowskiMatheus KuchenbeckerDanilo BarbuenaTiago Amâncio Novoapplication/pdfinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGLICENSELicense.txtLicense.txttext/plain; charset=utf-82042https://repositorio.ufmg.br/bitstream/1843/52193/1/License.txtfa505098d172de0bc8864fc1287ffe22MD51ORIGINALIntegrating geological and airborne geophysical data to review the cartography of Rio Itanguá Batholith.pdfIntegrating geological and airborne geophysical data to review the cartography of Rio Itanguá Batholith.pdfapplication/pdf24336977https://repositorio.ufmg.br/bitstream/1843/52193/2/Integrating%20geological%20and%20airborne%20geophysical%20data%20to%20review%20the%20cartography%20of%20Rio%20Itangu%c3%a1%20Batholith.pdf5f2690911665544a183a51db987c1f53MD521843/521932023-04-18 18:21:00.644oai:repositorio.ufmg.br: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Repositório de PublicaçõesPUBhttps://repositorio.ufmg.br/oaiopendoar:2023-04-18T21:21Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false |
dc.title.pt_BR.fl_str_mv |
Integrating geological and airborne geophysical data to review the cartography of rio itanguá batholith, araçuaí orogen, brazil |
dc.title.alternative.pt_BR.fl_str_mv |
Integração geológica e aerotransportada de dados geofísicos para revisar a cartografia de Batólito Rio Itanguá, Orógeno Araçuaí, Brasil |
title |
Integrating geological and airborne geophysical data to review the cartography of rio itanguá batholith, araçuaí orogen, brazil |
spellingShingle |
Integrating geological and airborne geophysical data to review the cartography of rio itanguá batholith, araçuaí orogen, brazil Julia Grochowski Rio Itanguá Batholith Geological mapping Gamma-ray spectrometry Magnetometry Guanhães Block Araçuaí Orogen Rochas igneas Mapeamento geologico Espectrometria de raio gama Cartografia |
title_short |
Integrating geological and airborne geophysical data to review the cartography of rio itanguá batholith, araçuaí orogen, brazil |
title_full |
Integrating geological and airborne geophysical data to review the cartography of rio itanguá batholith, araçuaí orogen, brazil |
title_fullStr |
Integrating geological and airborne geophysical data to review the cartography of rio itanguá batholith, araçuaí orogen, brazil |
title_full_unstemmed |
Integrating geological and airborne geophysical data to review the cartography of rio itanguá batholith, araçuaí orogen, brazil |
title_sort |
Integrating geological and airborne geophysical data to review the cartography of rio itanguá batholith, araçuaí orogen, brazil |
author |
Julia Grochowski |
author_facet |
Julia Grochowski Matheus Kuchenbecker Danilo Barbuena Tiago Amâncio Novo |
author_role |
author |
author2 |
Matheus Kuchenbecker Danilo Barbuena Tiago Amâncio Novo |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Julia Grochowski Matheus Kuchenbecker Danilo Barbuena Tiago Amâncio Novo |
dc.subject.por.fl_str_mv |
Rio Itanguá Batholith Geological mapping Gamma-ray spectrometry Magnetometry Guanhães Block Araçuaí Orogen |
topic |
Rio Itanguá Batholith Geological mapping Gamma-ray spectrometry Magnetometry Guanhães Block Araçuaí Orogen Rochas igneas Mapeamento geologico Espectrometria de raio gama Cartografia |
dc.subject.other.pt_BR.fl_str_mv |
Rochas igneas Mapeamento geologico Espectrometria de raio gama Cartografia |
description |
Rio Itanguá Batholith (RIB) is a plutonic body located in the Northern border of Guanhães block, one of the various basement blocks reworked within the Araçuaí orogen, Eastern Brazil. Although its existence is known since the beginning of the 20th century, its tectonic history remains poorly understood. The RIB was mapped at 1:100,000 scale in the 1990s, before geophysical and satellite data became available. This work aims to re-evaluate the cartography of the RIB, as an initial step towards understanding its genesis and evolution. In order to do so, field and petrographic data, together with airborne gamma-ray spectrometry and magnetometry data, were integrated, resulting in a geologic map that shows different features from the previous maps produced in the area, such as the batholith division into two different petrographic and geophysical units; the presence of a mafic dike intruding the batholith rocks and the reduction in size of the batholith area. The magnetometric and gamma-spectrometric data proved to be important tools for geological mapping, and the substantial data obtained in the analysis of this tiny area points to the importance of re-evaluating older geological maps, taking geophysical data into account. |
publishDate |
2019 |
dc.date.issued.fl_str_mv |
2019 |
dc.date.accessioned.fl_str_mv |
2023-04-18T21:21:00Z |
dc.date.available.fl_str_mv |
2023-04-18T21:21:00Z |
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://hdl.handle.net/1843/52193 |
dc.identifier.doi.pt_BR.fl_str_mv |
https://doi.org/10.1590/2317-4889201920190019 |
dc.identifier.issn.pt_BR.fl_str_mv |
2317-4692 |
dc.identifier.orcid.pt_BR.fl_str_mv |
https://orcid.org/0000-0002-7795-4852 https://orcid.org/0000-0003-2974-839X https://orcid.org/0000-0001-6944-3166 https://orcid.org/0000-0002-1999-862X |
url |
https://doi.org/10.1590/2317-4889201920190019 http://hdl.handle.net/1843/52193 https://orcid.org/0000-0002-7795-4852 https://orcid.org/0000-0003-2974-839X https://orcid.org/0000-0001-6944-3166 https://orcid.org/0000-0002-1999-862X |
identifier_str_mv |
2317-4692 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Brazilian Journal of Geology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Minas Gerais |
dc.publisher.initials.fl_str_mv |
UFMG |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
IGC - DEPARTAMENTO DE GEOLOGIA |
publisher.none.fl_str_mv |
Universidade Federal de Minas Gerais |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFMG instname:Universidade Federal de Minas Gerais (UFMG) instacron:UFMG |
instname_str |
Universidade Federal de Minas Gerais (UFMG) |
instacron_str |
UFMG |
institution |
UFMG |
reponame_str |
Repositório Institucional da UFMG |
collection |
Repositório Institucional da UFMG |
bitstream.url.fl_str_mv |
https://repositorio.ufmg.br/bitstream/1843/52193/1/License.txt https://repositorio.ufmg.br/bitstream/1843/52193/2/Integrating%20geological%20and%20airborne%20geophysical%20data%20to%20review%20the%20cartography%20of%20Rio%20Itangu%c3%a1%20Batholith.pdf |
bitstream.checksum.fl_str_mv |
fa505098d172de0bc8864fc1287ffe22 5f2690911665544a183a51db987c1f53 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG) |
repository.mail.fl_str_mv |
|
_version_ |
1803589307583168512 |