The Barreiro suite in the central Ribeira Belt (SE-Brazil) : a late tonian tholeiitic intraplate magmatic event in the distal passive margin of the São Francisco Paleocontinent
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| Publication Date: | 2019 |
| Other Authors: | , , , , , , , , |
| Format: | Article |
| Language: | eng |
| Source: | Repositório Institucional da UnB |
| Download full: | https://repositorio.unb.br/handle/10482/36682 https://doi.org/10.1590/2317-4889201920180129 http://orcid.org/0000-0002-3521-9251 http://orcid.org/0000-0001-8005-0646 http://orcid.org/0000-0002-2733-7813 http://orcid.org/0000-0002-9341-2615 http://orcid.org/0000-0002-5205-5359 http://orcid.org/0000-0002-7954-5059 http://orcid.org/0000-0002-4025-2283 http://orcid.org/0000-0003-3863-6576 http://orcid.org/0000-0003-1391-0268 http://orcid.org/0000-0002-0546-7772 |
Summary: | New geochemical, U-Pb, Lu-Hf and Sr-Nd data from the Barreiro Suite metabasites in comparison with enclaves within the distal Andrelândia Group and the orthogranulites of the Juiz de Fora Complex are presented. Geochemical data suggest intraplate setting, with high and low-TiO 2 , TDM Nd ages between 1.80 and 1.41 Ga, negative ΕNd t and ( 87 Sr/ 86 Sr)i between 0.714 and 0.747. Results contrast with part of the Juiz de Fora Complex enclaves, with island arc tholeiites- calcalkaline basalts (IAT-CAB) geochemical signatures, TDM Nd ages between 2.58 and 2.16 Ga, positive ΕNd t values and (87Sr/86Sr) i between 0.700 and 0.712. U-Pb data for the Barreiro Suite yielded a crystallization age of 766 ± 13 Ma and a metamorphic overprint of 619 ± 6 Ma. The results indicate three episodes of mafic magmatism in the Occidental terrane of the Ribeira Belt. The two older episodes are related to Rhyacian arc evolution (ca. 2.2 to 2.1 Ga) and to the Statherian (ca. 1.7 Ga) tectonics, and occur only within the Juiz de Fora Complex, while the younger ca. 766 Ma episode constrains the timing of distal passive margin evolution. An important implication is that these late Tonian metabasic rocks could have been a source of detrital zircons for the sedimentation along the distal Andrelândia basin. |
| _version_ | 1871442240320045056 |
|---|---|
| author | Heilbron, Monica |
| author2 | Oliveira, Caroline Lobato, Marcela Valeriano, Claudio de Morisson Dussin, Ivo Dantas, Elton Luiz Simonetti, Antonio Bruno, Henrique Corrales, Felipe Socoloff, Eduardo |
| author2_role | author author author author author author author author author |
| author_browse | Bruno, Henrique Corrales, Felipe Dantas, Elton Luiz Dussin, Ivo Heilbron, Monica Lobato, Marcela Oliveira, Caroline Simonetti, Antonio Socoloff, Eduardo Valeriano, Claudio de Morisson |
| author_facet | Heilbron, Monica Oliveira, Caroline Lobato, Marcela Valeriano, Claudio de Morisson Dussin, Ivo Dantas, Elton Luiz Simonetti, Antonio Bruno, Henrique Corrales, Felipe Socoloff, Eduardo |
| author_role | author |
| bitstream.checksum.fl_str_mv | 001974ac6c149b93af44a19e311f6d0d |
| bitstream.checksumAlgorithm.fl_str_mv | MD5 |
| bitstream.url.fl_str_mv | http://repositorio2.unb.br/jspui/bitstream/10482/36682/1/ARTIGO_BarreiroSuiteCentral.pdf |
| collection | Repositório Institucional da UnB |
| dc.contributor.author.fl_str_mv | Heilbron, Monica Oliveira, Caroline Lobato, Marcela Valeriano, Claudio de Morisson Dussin, Ivo Dantas, Elton Luiz Simonetti, Antonio Bruno, Henrique Corrales, Felipe Socoloff, Eduardo |
| dc.date.accessioned.fl_str_mv | 2020-01-24T10:33:08Z |
| dc.date.available.fl_str_mv | 2020-01-24T10:33:08Z |
| dc.date.issued.fl_str_mv | 2019 |
| dc.identifier.citation.fl_str_mv | HEILBRON, Monica et al. The Barreiro suite in the central Ribeira Belt (SE-Brazil): a late Tonian tholeiitic intraplate magmatic event in the distal passive margin of the São Francisco Paleocontinent. Brazilian Journal of Geology, v. 49, n. 2, e20180129, 2019. DOI: https://doi.org/10.1590/2317-4889201920180129. Disponível em: http://scielo.br/scielo.php?script=sci_arttext&pid=S2317-48892019000200304. Acesso em: 23 jan. 2020. |
| dc.identifier.doi.pt_BR.fl_str_mv | https://doi.org/10.1590/2317-4889201920180129 |
| dc.identifier.orcid.none.fl_str_mv | http://orcid.org/0000-0002-3521-9251 http://orcid.org/0000-0001-8005-0646 http://orcid.org/0000-0002-2733-7813 http://orcid.org/0000-0002-9341-2615 http://orcid.org/0000-0002-5205-5359 http://orcid.org/0000-0002-7954-5059 http://orcid.org/0000-0002-4025-2283 http://orcid.org/0000-0003-3863-6576 http://orcid.org/0000-0003-1391-0268 http://orcid.org/0000-0002-0546-7772 |
| dc.identifier.uri.fl_str_mv | https://repositorio.unb.br/handle/10482/36682 |
| dc.language.iso.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Sociedade Brasileira de Geologia |
| dc.rights.driver.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.source.none.fl_str_mv | reponame:Repositório Institucional da UnB instname:Universidade de Brasília (UnB) instacron:UNB |
| dc.subject.keyword.none.fl_str_mv | Datação arqueológica Geocronologia |
| dc.subject.keyword.pt_BR.fl_str_mv | Grupo Andrelândia Basalto |
| dc.title.pt_BR.fl_str_mv | The Barreiro suite in the central Ribeira Belt (SE-Brazil) : a late tonian tholeiitic intraplate magmatic event in the distal passive margin of the São Francisco Paleocontinent |
| dc.type.driver.fl_str_mv | info:eu-repo/semantics/article |
| dc.type.status.fl_str_mv | info:eu-repo/semantics/publishedVersion |
| description | New geochemical, U-Pb, Lu-Hf and Sr-Nd data from the Barreiro Suite metabasites in comparison with enclaves within the distal Andrelândia Group and the orthogranulites of the Juiz de Fora Complex are presented. Geochemical data suggest intraplate setting, with high and low-TiO 2 , TDM Nd ages between 1.80 and 1.41 Ga, negative ΕNd t and ( 87 Sr/ 86 Sr)i between 0.714 and 0.747. Results contrast with part of the Juiz de Fora Complex enclaves, with island arc tholeiites- calcalkaline basalts (IAT-CAB) geochemical signatures, TDM Nd ages between 2.58 and 2.16 Ga, positive ΕNd t values and (87Sr/86Sr) i between 0.700 and 0.712. U-Pb data for the Barreiro Suite yielded a crystallization age of 766 ± 13 Ma and a metamorphic overprint of 619 ± 6 Ma. The results indicate three episodes of mafic magmatism in the Occidental terrane of the Ribeira Belt. The two older episodes are related to Rhyacian arc evolution (ca. 2.2 to 2.1 Ga) and to the Statherian (ca. 1.7 Ga) tectonics, and occur only within the Juiz de Fora Complex, while the younger ca. 766 Ma episode constrains the timing of distal passive margin evolution. An important implication is that these late Tonian metabasic rocks could have been a source of detrital zircons for the sedimentation along the distal Andrelândia basin. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | UNB_2353628f7ac15dcd79eb93e56cf43a21 |
| identifier_str_mv | HEILBRON, Monica et al. The Barreiro suite in the central Ribeira Belt (SE-Brazil): a late Tonian tholeiitic intraplate magmatic event in the distal passive margin of the São Francisco Paleocontinent. Brazilian Journal of Geology, v. 49, n. 2, e20180129, 2019. DOI: https://doi.org/10.1590/2317-4889201920180129. Disponível em: http://scielo.br/scielo.php?script=sci_arttext&pid=S2317-48892019000200304. Acesso em: 23 jan. 2020. |
| instacron_str | UNB |
| institution | UNB |
| instname_str | Universidade de Brasília (UnB) |
| language | eng |
| network_acronym_str | UNB |
| network_name_str | Repositório Institucional da UnB |
| oai_identifier_str | oai:repositorio.unb.br:10482/36682 |
| publishDate | 2019 |
| publishDateSort | 2019 |
| publisher.none.fl_str_mv | Sociedade Brasileira de Geologia |
| reponame_str | Repositório Institucional da UnB |
| repository.mail.fl_str_mv | repositorio@unb.br |
| repository.name.fl_str_mv | Repositório Institucional da UnB - Universidade de Brasília (UnB) |
| repository_id_str | |
| spelling | Heilbron, MonicaOliveira, CarolineLobato, MarcelaValeriano, Claudio de MorissonDussin, IvoDantas, Elton LuizSimonetti, AntonioBruno, HenriqueCorrales, FelipeSocoloff, Eduardo2020-01-24T10:33:08Z2020-01-24T10:33:08Z2019HEILBRON, Monica et al. The Barreiro suite in the central Ribeira Belt (SE-Brazil): a late Tonian tholeiitic intraplate magmatic event in the distal passive margin of the São Francisco Paleocontinent. Brazilian Journal of Geology, v. 49, n. 2, e20180129, 2019. DOI: https://doi.org/10.1590/2317-4889201920180129. Disponível em: http://scielo.br/scielo.php?script=sci_arttext&pid=S2317-48892019000200304. Acesso em: 23 jan. 2020.https://repositorio.unb.br/handle/10482/36682https://doi.org/10.1590/2317-4889201920180129http://orcid.org/0000-0002-3521-9251http://orcid.org/0000-0001-8005-0646http://orcid.org/0000-0002-2733-7813http://orcid.org/0000-0002-9341-2615http://orcid.org/0000-0002-5205-5359http://orcid.org/0000-0002-7954-5059http://orcid.org/0000-0002-4025-2283http://orcid.org/0000-0003-3863-6576http://orcid.org/0000-0003-1391-0268http://orcid.org/0000-0002-0546-7772Sociedade Brasileira de Geologia(CC BY) - © 2019 The autors. This is an open access article distributed under the terms of the Creative Commons license.info:eu-repo/semantics/openAccessThe Barreiro suite in the central Ribeira Belt (SE-Brazil) : a late tonian tholeiitic intraplate magmatic event in the distal passive margin of the São Francisco Paleocontinentinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleGrupo AndrelândiaBasaltoDatação arqueológicaGeocronologiaNew geochemical, U-Pb, Lu-Hf and Sr-Nd data from the Barreiro Suite metabasites in comparison with enclaves within the distal Andrelândia Group and the orthogranulites of the Juiz de Fora Complex are presented. Geochemical data suggest intraplate setting, with high and low-TiO 2 , TDM Nd ages between 1.80 and 1.41 Ga, negative ΕNd t and ( 87 Sr/ 86 Sr)i between 0.714 and 0.747. Results contrast with part of the Juiz de Fora Complex enclaves, with island arc tholeiites- calcalkaline basalts (IAT-CAB) geochemical signatures, TDM Nd ages between 2.58 and 2.16 Ga, positive ΕNd t values and (87Sr/86Sr) i between 0.700 and 0.712. U-Pb data for the Barreiro Suite yielded a crystallization age of 766 ± 13 Ma and a metamorphic overprint of 619 ± 6 Ma. The results indicate three episodes of mafic magmatism in the Occidental terrane of the Ribeira Belt. The two older episodes are related to Rhyacian arc evolution (ca. 2.2 to 2.1 Ga) and to the Statherian (ca. 1.7 Ga) tectonics, and occur only within the Juiz de Fora Complex, while the younger ca. 766 Ma episode constrains the timing of distal passive margin evolution. An important implication is that these late Tonian metabasic rocks could have been a source of detrital zircons for the sedimentation along the distal Andrelândia basin.engreponame:Repositório Institucional da UnBinstname:Universidade de Brasília (UnB)instacron:UNBORIGINALARTIGO_BarreiroSuiteCentral.pdfapplication/pdf7388733http://repositorio2.unb.br/jspui/bitstream/10482/36682/1/ARTIGO_BarreiroSuiteCentral.pdf001974ac6c149b93af44a19e311f6d0dMD51open access10482/366822023-05-26 21:23:04.934open accessoai:repositorio.unb.br:10482/36682Repositório InstitucionalPUBhttps://repositorio.unb.br/oai/requestrepositorio@unb.bropendoar:2023-05-27T00:23:04Repositório Institucional da UnB - Universidade de Brasília (UnB) |
| spellingShingle | The Barreiro suite in the central Ribeira Belt (SE-Brazil) : a late tonian tholeiitic intraplate magmatic event in the distal passive margin of the São Francisco Paleocontinent Heilbron, Monica Grupo Andrelândia Basalto Datação arqueológica Geocronologia |
| status_str | publishedVersion |
| title | The Barreiro suite in the central Ribeira Belt (SE-Brazil) : a late tonian tholeiitic intraplate magmatic event in the distal passive margin of the São Francisco Paleocontinent |
| title_full | The Barreiro suite in the central Ribeira Belt (SE-Brazil) : a late tonian tholeiitic intraplate magmatic event in the distal passive margin of the São Francisco Paleocontinent |
| title_fullStr | The Barreiro suite in the central Ribeira Belt (SE-Brazil) : a late tonian tholeiitic intraplate magmatic event in the distal passive margin of the São Francisco Paleocontinent |
| title_full_unstemmed | The Barreiro suite in the central Ribeira Belt (SE-Brazil) : a late tonian tholeiitic intraplate magmatic event in the distal passive margin of the São Francisco Paleocontinent |
| title_short | The Barreiro suite in the central Ribeira Belt (SE-Brazil) : a late tonian tholeiitic intraplate magmatic event in the distal passive margin of the São Francisco Paleocontinent |
| title_sort | The Barreiro suite in the central Ribeira Belt (SE-Brazil) : a late tonian tholeiitic intraplate magmatic event in the distal passive margin of the São Francisco Paleocontinent |
| topic | Grupo Andrelândia Basalto Datação arqueológica Geocronologia |
| url | https://repositorio.unb.br/handle/10482/36682 https://doi.org/10.1590/2317-4889201920180129 http://orcid.org/0000-0002-3521-9251 http://orcid.org/0000-0001-8005-0646 http://orcid.org/0000-0002-2733-7813 http://orcid.org/0000-0002-9341-2615 http://orcid.org/0000-0002-5205-5359 http://orcid.org/0000-0002-7954-5059 http://orcid.org/0000-0002-4025-2283 http://orcid.org/0000-0003-3863-6576 http://orcid.org/0000-0003-1391-0268 http://orcid.org/0000-0002-0546-7772 |