The ancestry and magmatic evolution of Archaean TTG rocks of the Quadrilátero Ferrífero province, southeast Brazil.

Detalhes bibliográficos
Autor(a) principal: Lana, Cristiano de Carvalho
Data de Publicação: 2013
Outros Autores: Alkmim, Fernando Flecha de, Armstrong, Richard, Cipriano, Ricardo Augusto Scholz, Romano, Rafael Cotta
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFOP
dARK ID: ark:/61566/0013000001kpx
Texto Completo: http://www.repositorio.ufop.br/handle/123456789/3886
https://doi.org/10.1016/j.precamres.2013.03.008
Resumo: Combined LA-ICP-MS and SHRIMP U–Pb ages from Quadrilatero Ferrifero (QF) province reveals for the first time three main periods of TTG magmatism in the southern part of the Sao Francisco Craton (Brazil). These periods – described here as the Santa Barbara (SB), Rio das Velhas I (RVI) and Rio das Velhas II (RVII) events – embody a significant part of a protracted tectonomagmatic history of the Craton, spanning from 3220 to 2770 Ma. The initial stages of TTG magmatism (the SB event) led to formation of a core of Palaeoarchaean TTG crust via magmatic additions of juvenile felsic rocks into mafic–ultramafic rocks, at ca. 3212–3210 Ma. The following event (RVI event) saw the growth of this Palaeoarchaean core into a more composite, polydefomed continental segment through magmatic additions of juvenile TTG rocks and tectonic accretion of mafic–ultramafic greenstone belt terrains. Our U–Pb data and regional constraints suggest that much of the TTG crust exposed in the QF region today was produced during the RVI event, between 2930 and 2900 Ma. The final stages of TTG crust production (RV II event) were marked by convergence-related magmatism, affecting an extensive Palaeo- to Mesoarchaean continental block (The RVI block). The timing and duration of the latest TTG event coincides with the felsic volcanism and deposition of turbiditic wackes of the main greenstone belt sequence.
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spelling The ancestry and magmatic evolution of Archaean TTG rocks of the Quadrilátero Ferrífero province, southeast Brazil.ArchaeanQuadrilátero FerríferoSão Francisco CratonCombined LA-ICP-MS and SHRIMP U–Pb ages from Quadrilatero Ferrifero (QF) province reveals for the first time three main periods of TTG magmatism in the southern part of the Sao Francisco Craton (Brazil). These periods – described here as the Santa Barbara (SB), Rio das Velhas I (RVI) and Rio das Velhas II (RVII) events – embody a significant part of a protracted tectonomagmatic history of the Craton, spanning from 3220 to 2770 Ma. The initial stages of TTG magmatism (the SB event) led to formation of a core of Palaeoarchaean TTG crust via magmatic additions of juvenile felsic rocks into mafic–ultramafic rocks, at ca. 3212–3210 Ma. The following event (RVI event) saw the growth of this Palaeoarchaean core into a more composite, polydefomed continental segment through magmatic additions of juvenile TTG rocks and tectonic accretion of mafic–ultramafic greenstone belt terrains. Our U–Pb data and regional constraints suggest that much of the TTG crust exposed in the QF region today was produced during the RVI event, between 2930 and 2900 Ma. The final stages of TTG crust production (RV II event) were marked by convergence-related magmatism, affecting an extensive Palaeo- to Mesoarchaean continental block (The RVI block). The timing and duration of the latest TTG event coincides with the felsic volcanism and deposition of turbiditic wackes of the main greenstone belt sequence.2014-11-14T20:36:24Z2014-11-14T20:36:24Z2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfLANA, C. et al. The ancestry and magmatic evolution of Archaean TTG rocks of the Quadrilátero Ferrífero province, southeast Brazil. Precambrian Research, v. 230, p. 1-30, 2013. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0301926813000946>. Acesso em: 04 set. 2014.0301-9268http://www.repositorio.ufop.br/handle/123456789/3886https://doi.org/10.1016/j.precamres.2013.03.008ark:/61566/0013000001kpxO periódico Precambrian Research concede permissão para depósito deste artigo no Repositório Institucional da UFOP. Número da licença: 3466020878458.info:eu-repo/semantics/openAccessLana, Cristiano de CarvalhoAlkmim, Fernando Flecha deArmstrong, RichardCipriano, Ricardo Augusto ScholzRomano, Rafael Cottaengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOP2024-11-10T14:17:40Zoai:repositorio.ufop.br:123456789/3886Repositório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332024-11-10T14:17:40Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false
dc.title.none.fl_str_mv The ancestry and magmatic evolution of Archaean TTG rocks of the Quadrilátero Ferrífero province, southeast Brazil.
title The ancestry and magmatic evolution of Archaean TTG rocks of the Quadrilátero Ferrífero province, southeast Brazil.
spellingShingle The ancestry and magmatic evolution of Archaean TTG rocks of the Quadrilátero Ferrífero province, southeast Brazil.
Lana, Cristiano de Carvalho
Archaean
Quadrilátero Ferrífero
São Francisco Craton
title_short The ancestry and magmatic evolution of Archaean TTG rocks of the Quadrilátero Ferrífero province, southeast Brazil.
title_full The ancestry and magmatic evolution of Archaean TTG rocks of the Quadrilátero Ferrífero province, southeast Brazil.
title_fullStr The ancestry and magmatic evolution of Archaean TTG rocks of the Quadrilátero Ferrífero province, southeast Brazil.
title_full_unstemmed The ancestry and magmatic evolution of Archaean TTG rocks of the Quadrilátero Ferrífero province, southeast Brazil.
title_sort The ancestry and magmatic evolution of Archaean TTG rocks of the Quadrilátero Ferrífero province, southeast Brazil.
author Lana, Cristiano de Carvalho
author_facet Lana, Cristiano de Carvalho
Alkmim, Fernando Flecha de
Armstrong, Richard
Cipriano, Ricardo Augusto Scholz
Romano, Rafael Cotta
author_role author
author2 Alkmim, Fernando Flecha de
Armstrong, Richard
Cipriano, Ricardo Augusto Scholz
Romano, Rafael Cotta
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Lana, Cristiano de Carvalho
Alkmim, Fernando Flecha de
Armstrong, Richard
Cipriano, Ricardo Augusto Scholz
Romano, Rafael Cotta
dc.subject.por.fl_str_mv Archaean
Quadrilátero Ferrífero
São Francisco Craton
topic Archaean
Quadrilátero Ferrífero
São Francisco Craton
description Combined LA-ICP-MS and SHRIMP U–Pb ages from Quadrilatero Ferrifero (QF) province reveals for the first time three main periods of TTG magmatism in the southern part of the Sao Francisco Craton (Brazil). These periods – described here as the Santa Barbara (SB), Rio das Velhas I (RVI) and Rio das Velhas II (RVII) events – embody a significant part of a protracted tectonomagmatic history of the Craton, spanning from 3220 to 2770 Ma. The initial stages of TTG magmatism (the SB event) led to formation of a core of Palaeoarchaean TTG crust via magmatic additions of juvenile felsic rocks into mafic–ultramafic rocks, at ca. 3212–3210 Ma. The following event (RVI event) saw the growth of this Palaeoarchaean core into a more composite, polydefomed continental segment through magmatic additions of juvenile TTG rocks and tectonic accretion of mafic–ultramafic greenstone belt terrains. Our U–Pb data and regional constraints suggest that much of the TTG crust exposed in the QF region today was produced during the RVI event, between 2930 and 2900 Ma. The final stages of TTG crust production (RV II event) were marked by convergence-related magmatism, affecting an extensive Palaeo- to Mesoarchaean continental block (The RVI block). The timing and duration of the latest TTG event coincides with the felsic volcanism and deposition of turbiditic wackes of the main greenstone belt sequence.
publishDate 2013
dc.date.none.fl_str_mv 2013
2014-11-14T20:36:24Z
2014-11-14T20:36:24Z
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 LANA, C. et al. The ancestry and magmatic evolution of Archaean TTG rocks of the Quadrilátero Ferrífero province, southeast Brazil. Precambrian Research, v. 230, p. 1-30, 2013. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0301926813000946>. Acesso em: 04 set. 2014.
0301-9268
http://www.repositorio.ufop.br/handle/123456789/3886
https://doi.org/10.1016/j.precamres.2013.03.008
dc.identifier.dark.fl_str_mv ark:/61566/0013000001kpx
identifier_str_mv LANA, C. et al. The ancestry and magmatic evolution of Archaean TTG rocks of the Quadrilátero Ferrífero province, southeast Brazil. Precambrian Research, v. 230, p. 1-30, 2013. Disponível em: <http://www.sciencedirect.com/science/article/pii/S0301926813000946>. Acesso em: 04 set. 2014.
0301-9268
ark:/61566/0013000001kpx
url http://www.repositorio.ufop.br/handle/123456789/3886
https://doi.org/10.1016/j.precamres.2013.03.008
dc.language.iso.fl_str_mv eng
language eng
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.source.none.fl_str_mv reponame:Repositório Institucional da UFOP
instname:Universidade Federal de Ouro Preto (UFOP)
instacron:UFOP
instname_str Universidade Federal de Ouro Preto (UFOP)
instacron_str UFOP
institution UFOP
reponame_str Repositório Institucional da UFOP
collection Repositório Institucional da UFOP
repository.name.fl_str_mv Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)
repository.mail.fl_str_mv repositorio@ufop.edu.br
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