São Luiz Craton and Gurupi Belt (Brazil): possible links with the West African Craton and surrounding Pan-African belts
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional de Geociências - RIGEO |
Texto Completo: | https://rigeo.cprm.gov.br/handle/doc/540 |
Resumo: | The São Luís Craton and the Palaeoproterozoic basement rocks of the Neoproterozoic Gurupi Belt in northern Brazil are part of an orogen having an early accretionary phase at 2240–2150 Ma and a late collisional phase at 2080+20 Ma. Geological, geochronological and isotopic evidence, along with palaeogeographic reconstructions, strongly suggest that these Brazilian terrains were contiguous with the West African Craton in Palaeoproterozoic times, and that this landmass apparently survived subsequent continental break-up until its incorporation in Rodinia. The Gurupi Belt is an orogen developed in the southern margin of the West African–São Luís Craton at c. 750–550 Ma, after the break up of Rodinia. Factors such as present-day and possible past geographical positions, the timing of a few well-characterized events, the structural polarity and internal structure of the belt, in addition to other indirect evidence, all favour correlation between the Gurupi Belt and other Brasiliano/Pan-African belts, especially the Médio Coreau domain of the Borborema Province and the Trans-Saharan Belt of Africa, despite the lack of proven physical links between them. These Neoproterozoic belts are part of the branched system of orogens associated with amalgamation of the Amazonian, West Africa–São Luís, São Francisco and other cratons and minor continental blocks into the West Gondwana supercontinent |
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KLEIN, Evandro LuizMOURA, Cândido Augusto Veloso2013-12-19T16:32:37Z2013-12-19T16:32:37Z2008KLEIN, Evandro Luiz; MOURA, Cândido Augusto Veloso. São Luiz Craton and Gurupi Belt (Brazil): possible links with the West African Craton and surrounding Pan-African belts. Geological Society London Special Publications, London, v.294, n., p.137-151, London.https://rigeo.cprm.gov.br/handle/doc/540The São Luís Craton and the Palaeoproterozoic basement rocks of the Neoproterozoic Gurupi Belt in northern Brazil are part of an orogen having an early accretionary phase at 2240–2150 Ma and a late collisional phase at 2080+20 Ma. Geological, geochronological and isotopic evidence, along with palaeogeographic reconstructions, strongly suggest that these Brazilian terrains were contiguous with the West African Craton in Palaeoproterozoic times, and that this landmass apparently survived subsequent continental break-up until its incorporation in Rodinia. The Gurupi Belt is an orogen developed in the southern margin of the West African–São Luís Craton at c. 750–550 Ma, after the break up of Rodinia. Factors such as present-day and possible past geographical positions, the timing of a few well-characterized events, the structural polarity and internal structure of the belt, in addition to other indirect evidence, all favour correlation between the Gurupi Belt and other Brasiliano/Pan-African belts, especially the Médio Coreau domain of the Borborema Province and the Trans-Saharan Belt of Africa, despite the lack of proven physical links between them. These Neoproterozoic belts are part of the branched system of orogens associated with amalgamation of the Amazonian, West Africa–São Luís, São Francisco and other cratons and minor continental blocks into the West Gondwana supercontinentGEOCRONOLOGIALITOESTRATIGRAFIAPALEOPROTEROZOICOCRÁTON SÃO LUÍSGURUPIBRASILSão Luiz Craton and Gurupi Belt (Brazil): possible links with the West African Craton and surrounding Pan-African beltsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleLondonengreponame:Repositório Institucional de Geociências - RIGEOinstname:Companhia de Pesquisa de Recursos Minerais (CPRM)instacron:CPRMinfo:eu-repo/semantics/openAccessTEXTklein08_sluis_wafrica.pdf.txtklein08_sluis_wafrica.pdf.txtExtracted texttext/plain57144http://rigeo.cprm.gov.br/jspui/bitstream/doc/540/2/klein08_sluis_wafrica.pdf.txt8236af0c62c1c3fd584a29bf55714691MD52THUMBNAILklein08_sluis_wafrica.pdf.jpgklein08_sluis_wafrica.pdf.jpgGenerated Thumbnailimage/jpeg1644http://rigeo.cprm.gov.br/jspui/bitstream/doc/540/3/klein08_sluis_wafrica.pdf.jpga059958ea7bf40a09a3682c01644067cMD53ORIGINALklein08_sluis_wafrica.pdfklein08_sluis_wafrica.pdfproducao cientificaapplication/pdf672289http://rigeo.cprm.gov.br/jspui/bitstream/doc/540/1/klein08_sluis_wafrica.pdf117988137dd4552819b52565a81649d3MD51doc/5402023-02-13 11:10:45.897oai:rigeo.sgb.gov.br:doc/540Repositório InstitucionalONGhttp://rigeo.cprm.gov.br/oai/requestrigeo@sgb.gov.bropendoar:2023-02-13T14:10:45Repositório Institucional de Geociências - RIGEO - Companhia de Pesquisa de Recursos Minerais (CPRM)false |
dc.title.none.fl_str_mv |
São Luiz Craton and Gurupi Belt (Brazil): possible links with the West African Craton and surrounding Pan-African belts |
title |
São Luiz Craton and Gurupi Belt (Brazil): possible links with the West African Craton and surrounding Pan-African belts |
spellingShingle |
São Luiz Craton and Gurupi Belt (Brazil): possible links with the West African Craton and surrounding Pan-African belts KLEIN, Evandro Luiz GEOCRONOLOGIA LITOESTRATIGRAFIA PALEOPROTEROZOICO CRÁTON SÃO LUÍS GURUPI BRASIL |
title_short |
São Luiz Craton and Gurupi Belt (Brazil): possible links with the West African Craton and surrounding Pan-African belts |
title_full |
São Luiz Craton and Gurupi Belt (Brazil): possible links with the West African Craton and surrounding Pan-African belts |
title_fullStr |
São Luiz Craton and Gurupi Belt (Brazil): possible links with the West African Craton and surrounding Pan-African belts |
title_full_unstemmed |
São Luiz Craton and Gurupi Belt (Brazil): possible links with the West African Craton and surrounding Pan-African belts |
title_sort |
São Luiz Craton and Gurupi Belt (Brazil): possible links with the West African Craton and surrounding Pan-African belts |
author |
KLEIN, Evandro Luiz |
author_facet |
KLEIN, Evandro Luiz MOURA, Cândido Augusto Veloso |
author_role |
author |
author2 |
MOURA, Cândido Augusto Veloso |
author2_role |
author |
dc.contributor.author.fl_str_mv |
KLEIN, Evandro Luiz MOURA, Cândido Augusto Veloso |
dc.subject.por.fl_str_mv |
GEOCRONOLOGIA LITOESTRATIGRAFIA PALEOPROTEROZOICO CRÁTON SÃO LUÍS GURUPI BRASIL |
topic |
GEOCRONOLOGIA LITOESTRATIGRAFIA PALEOPROTEROZOICO CRÁTON SÃO LUÍS GURUPI BRASIL |
description |
The São Luís Craton and the Palaeoproterozoic basement rocks of the Neoproterozoic Gurupi Belt in northern Brazil are part of an orogen having an early accretionary phase at 2240–2150 Ma and a late collisional phase at 2080+20 Ma. Geological, geochronological and isotopic evidence, along with palaeogeographic reconstructions, strongly suggest that these Brazilian terrains were contiguous with the West African Craton in Palaeoproterozoic times, and that this landmass apparently survived subsequent continental break-up until its incorporation in Rodinia. The Gurupi Belt is an orogen developed in the southern margin of the West African–São Luís Craton at c. 750–550 Ma, after the break up of Rodinia. Factors such as present-day and possible past geographical positions, the timing of a few well-characterized events, the structural polarity and internal structure of the belt, in addition to other indirect evidence, all favour correlation between the Gurupi Belt and other Brasiliano/Pan-African belts, especially the Médio Coreau domain of the Borborema Province and the Trans-Saharan Belt of Africa, despite the lack of proven physical links between them. These Neoproterozoic belts are part of the branched system of orogens associated with amalgamation of the Amazonian, West Africa–São Luís, São Francisco and other cratons and minor continental blocks into the West Gondwana supercontinent |
publishDate |
2008 |
dc.date.issued.fl_str_mv |
2008 |
dc.date.accessioned.fl_str_mv |
2013-12-19T16:32:37Z |
dc.date.available.fl_str_mv |
2013-12-19T16:32:37Z |
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.citation.fl_str_mv |
KLEIN, Evandro Luiz; MOURA, Cândido Augusto Veloso. São Luiz Craton and Gurupi Belt (Brazil): possible links with the West African Craton and surrounding Pan-African belts. Geological Society London Special Publications, London, v.294, n., p.137-151, London. |
dc.identifier.uri.fl_str_mv |
https://rigeo.cprm.gov.br/handle/doc/540 |
identifier_str_mv |
KLEIN, Evandro Luiz; MOURA, Cândido Augusto Veloso. São Luiz Craton and Gurupi Belt (Brazil): possible links with the West African Craton and surrounding Pan-African belts. Geological Society London Special Publications, London, v.294, n., p.137-151, London. |
url |
https://rigeo.cprm.gov.br/handle/doc/540 |
dc.language.iso.fl_str_mv |
eng |
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openAccess |
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