Granulite accretion to Rio de la Plata Craton, based on zircon U-Pb-Hf isotopes: tectonic implications for Columbia Supercontinent reconstruction

Detalhes bibliográficos
Autor(a) principal: GIRELLI, Tiago Jonatan
Data de Publicação: 2018
Outros Autores: CHEMALE JÚNIOR, Farid, LAVINA, Ernesto Luiz Correa, LAUX, Jorge Henrique, BONGIOLO, Everton Marques, LANA, Cristiano
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional de Geociências - RIGEO
Texto Completo: https://rigeo.cprm.gov.br/handle/doc/20075
Resumo: The paleogeographic reconstruction of the Rio de la Plata involved eitherallocthonous or autochthonous process reflecting directly the Paleoproterozoic connection of the craton to Columbia Supercontinent. Santa Maria Chico Granulite Complex is a significant fragment of Rio de la Plata intensely affected bythe Brasiliano Orogeny. ZirconU-Pb-Hf isotopes by LA-ICP-MS, mineral and whole-rock chemistry and a pseudo-section are presentlyinterpreted. U-Pb-Hf isotopes characterize two main accretionary and metamorphic events: oceanic juvenilecrustal accretion (i) 2430–2290 Ma (εHf (t) = −3.17 to +7.00), with arc related metamorphism (830–870 °C,6.7–7.2 kbar) at ~2.3 Ga;and continental arc accretion (ii)2240–2120 Ma(εHf (t) = −4 to +2.4), with continen- talcollisionmetamorphism(770–790 °C,8.7–9.1 kbar)at2.1–2.0 Ga.Alkalinegraniticdikesrelatedtocrustalex- tension at 1.8 Ga cut the granulitic rocks after the stabilization of this crustal segment. The present data point to formation of Paleoproterozoic granulitic rocks of the Santa Maria Chico Granulite Complex and adjacent Nico Pérez and Rivera terranes in multi-stage volcanic arcs to continental collision environment over 370 Ma (2430 to 2060 Ma). These terranes were amalgamated in the Paleoproterozoic to the core of the Rio de la Plata Cratonas part of Columbia Supercontinent and intensely reworked during the amalgamation of Western Gondwana inthe Neoproterozoic.
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spelling GIRELLI, Tiago JonatanCHEMALE JÚNIOR, FaridLAVINA, Ernesto Luiz CorreaLAUX, Jorge HenriqueBONGIOLO, Everton MarquesLANA, Cristiano2018-09-19T12:14:47Z2018-09-19T12:14:47Z2018GIRELLI, Tiago Jonatan et al. Granulite accretion to Rio de la Plata Craton, based on zircon U-Pb-Hf isotopes: tectonic implications for Columbia Supercontinent reconstruction. Gondwana Research, v. 56, p. 105-118, 2018.1342-937Xhttps://rigeo.cprm.gov.br/handle/doc/20075The paleogeographic reconstruction of the Rio de la Plata involved eitherallocthonous or autochthonous process reflecting directly the Paleoproterozoic connection of the craton to Columbia Supercontinent. Santa Maria Chico Granulite Complex is a significant fragment of Rio de la Plata intensely affected bythe Brasiliano Orogeny. ZirconU-Pb-Hf isotopes by LA-ICP-MS, mineral and whole-rock chemistry and a pseudo-section are presentlyinterpreted. U-Pb-Hf isotopes characterize two main accretionary and metamorphic events: oceanic juvenilecrustal accretion (i) 2430–2290 Ma (εHf (t) = −3.17 to +7.00), with arc related metamorphism (830–870 °C,6.7–7.2 kbar) at ~2.3 Ga;and continental arc accretion (ii)2240–2120 Ma(εHf (t) = −4 to +2.4), with continen- talcollisionmetamorphism(770–790 °C,8.7–9.1 kbar)at2.1–2.0 Ga.Alkalinegraniticdikesrelatedtocrustalex- tension at 1.8 Ga cut the granulitic rocks after the stabilization of this crustal segment. The present data point to formation of Paleoproterozoic granulitic rocks of the Santa Maria Chico Granulite Complex and adjacent Nico Pérez and Rivera terranes in multi-stage volcanic arcs to continental collision environment over 370 Ma (2430 to 2060 Ma). These terranes were amalgamated in the Paleoproterozoic to the core of the Rio de la Plata Cratonas part of Columbia Supercontinent and intensely reworked during the amalgamation of Western Gondwana inthe Neoproterozoic.2019-05-30UNISINOSCPRMUFRJUFOPElsevierlimitedinfo:eu-repo/semantics/openAccessPALEOPROTEROZOIC JUVENILE ACCRETIONZIRCON U-Pb-Hf ISOTOPESSANTA MARIA CHICO GRANULITIC COMPLEXMETACRATONCOLUMBIA SUPERCONTINENTRIO DE LA PLATA CRATONPALEOPROTEROZÓICOISÓTOPOS U-Pb-HfCRATON RIO DE LA PLATACOMPLEXO GRANULÍTICO SANTA MARIA CHICONEOPROTEROZÓICOSUPERCONTINENTE COLUMBIAGranulite accretion to Rio de la Plata Craton, based on zircon U-Pb-Hf isotopes: tectonic implications for Columbia Supercontinent reconstructioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleAmsterdamengreponame:Repositório Institucional de Geociências - RIGEOinstname:Companhia de Pesquisa de Recursos Minerais (CPRM)instacron:CPRMORIGINAL2018_girelli_et_al.pdf2018_girelli_et_al.pdfproducao cientificaapplication/pdf1466174http://rigeo.cprm.gov.br/jspui/bitstream/doc/20075/1/2018_girelli_et_al.pdf78e2fa61a8cb0161ca9f46d5fc4a0b07MD51LICENSElicense.txtlicense.txttext/plain; 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dc.title.pt_BR.fl_str_mv Granulite accretion to Rio de la Plata Craton, based on zircon U-Pb-Hf isotopes: tectonic implications for Columbia Supercontinent reconstruction
title Granulite accretion to Rio de la Plata Craton, based on zircon U-Pb-Hf isotopes: tectonic implications for Columbia Supercontinent reconstruction
spellingShingle Granulite accretion to Rio de la Plata Craton, based on zircon U-Pb-Hf isotopes: tectonic implications for Columbia Supercontinent reconstruction
GIRELLI, Tiago Jonatan
PALEOPROTEROZÓICO
ISÓTOPOS U-Pb-Hf
CRATON RIO DE LA PLATA
COMPLEXO GRANULÍTICO SANTA MARIA CHICO
NEOPROTEROZÓICO
SUPERCONTINENTE COLUMBIA
PALEOPROTEROZOIC JUVENILE ACCRETION
ZIRCON U-Pb-Hf ISOTOPES
SANTA MARIA CHICO GRANULITIC COMPLEX
METACRATON
COLUMBIA SUPERCONTINENT
RIO DE LA PLATA CRATON
title_short Granulite accretion to Rio de la Plata Craton, based on zircon U-Pb-Hf isotopes: tectonic implications for Columbia Supercontinent reconstruction
title_full Granulite accretion to Rio de la Plata Craton, based on zircon U-Pb-Hf isotopes: tectonic implications for Columbia Supercontinent reconstruction
title_fullStr Granulite accretion to Rio de la Plata Craton, based on zircon U-Pb-Hf isotopes: tectonic implications for Columbia Supercontinent reconstruction
title_full_unstemmed Granulite accretion to Rio de la Plata Craton, based on zircon U-Pb-Hf isotopes: tectonic implications for Columbia Supercontinent reconstruction
title_sort Granulite accretion to Rio de la Plata Craton, based on zircon U-Pb-Hf isotopes: tectonic implications for Columbia Supercontinent reconstruction
author GIRELLI, Tiago Jonatan
author_facet GIRELLI, Tiago Jonatan
CHEMALE JÚNIOR, Farid
LAVINA, Ernesto Luiz Correa
LAUX, Jorge Henrique
BONGIOLO, Everton Marques
LANA, Cristiano
author_role author
author2 CHEMALE JÚNIOR, Farid
LAVINA, Ernesto Luiz Correa
LAUX, Jorge Henrique
BONGIOLO, Everton Marques
LANA, Cristiano
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv GIRELLI, Tiago Jonatan
CHEMALE JÚNIOR, Farid
LAVINA, Ernesto Luiz Correa
LAUX, Jorge Henrique
BONGIOLO, Everton Marques
LANA, Cristiano
dc.subject.por.fl_str_mv PALEOPROTEROZÓICO
ISÓTOPOS U-Pb-Hf
CRATON RIO DE LA PLATA
COMPLEXO GRANULÍTICO SANTA MARIA CHICO
NEOPROTEROZÓICO
SUPERCONTINENTE COLUMBIA
topic PALEOPROTEROZÓICO
ISÓTOPOS U-Pb-Hf
CRATON RIO DE LA PLATA
COMPLEXO GRANULÍTICO SANTA MARIA CHICO
NEOPROTEROZÓICO
SUPERCONTINENTE COLUMBIA
PALEOPROTEROZOIC JUVENILE ACCRETION
ZIRCON U-Pb-Hf ISOTOPES
SANTA MARIA CHICO GRANULITIC COMPLEX
METACRATON
COLUMBIA SUPERCONTINENT
RIO DE LA PLATA CRATON
dc.subject.en.pt_BR.fl_str_mv PALEOPROTEROZOIC JUVENILE ACCRETION
ZIRCON U-Pb-Hf ISOTOPES
SANTA MARIA CHICO GRANULITIC COMPLEX
METACRATON
COLUMBIA SUPERCONTINENT
RIO DE LA PLATA CRATON
description The paleogeographic reconstruction of the Rio de la Plata involved eitherallocthonous or autochthonous process reflecting directly the Paleoproterozoic connection of the craton to Columbia Supercontinent. Santa Maria Chico Granulite Complex is a significant fragment of Rio de la Plata intensely affected bythe Brasiliano Orogeny. ZirconU-Pb-Hf isotopes by LA-ICP-MS, mineral and whole-rock chemistry and a pseudo-section are presentlyinterpreted. U-Pb-Hf isotopes characterize two main accretionary and metamorphic events: oceanic juvenilecrustal accretion (i) 2430–2290 Ma (εHf (t) = −3.17 to +7.00), with arc related metamorphism (830–870 °C,6.7–7.2 kbar) at ~2.3 Ga;and continental arc accretion (ii)2240–2120 Ma(εHf (t) = −4 to +2.4), with continen- talcollisionmetamorphism(770–790 °C,8.7–9.1 kbar)at2.1–2.0 Ga.Alkalinegraniticdikesrelatedtocrustalex- tension at 1.8 Ga cut the granulitic rocks after the stabilization of this crustal segment. The present data point to formation of Paleoproterozoic granulitic rocks of the Santa Maria Chico Granulite Complex and adjacent Nico Pérez and Rivera terranes in multi-stage volcanic arcs to continental collision environment over 370 Ma (2430 to 2060 Ma). These terranes were amalgamated in the Paleoproterozoic to the core of the Rio de la Plata Cratonas part of Columbia Supercontinent and intensely reworked during the amalgamation of Western Gondwana inthe Neoproterozoic.
publishDate 2018
dc.date.accessioned.fl_str_mv 2018-09-19T12:14:47Z
dc.date.available.fl_str_mv 2018-09-19T12:14:47Z
dc.date.issued.fl_str_mv 2018
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 GIRELLI, Tiago Jonatan et al. Granulite accretion to Rio de la Plata Craton, based on zircon U-Pb-Hf isotopes: tectonic implications for Columbia Supercontinent reconstruction. Gondwana Research, v. 56, p. 105-118, 2018.
dc.identifier.uri.fl_str_mv https://rigeo.cprm.gov.br/handle/doc/20075
dc.identifier.issn.none.fl_str_mv 1342-937X
identifier_str_mv GIRELLI, Tiago Jonatan et al. Granulite accretion to Rio de la Plata Craton, based on zircon U-Pb-Hf isotopes: tectonic implications for Columbia Supercontinent reconstruction. Gondwana Research, v. 56, p. 105-118, 2018.
1342-937X
url https://rigeo.cprm.gov.br/handle/doc/20075
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv limited
info:eu-repo/semantics/openAccess
rights_invalid_str_mv limited
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Institucional de Geociências - RIGEO
instname:Companhia de Pesquisa de Recursos Minerais (CPRM)
instacron:CPRM
instname_str Companhia de Pesquisa de Recursos Minerais (CPRM)
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institution CPRM
reponame_str Repositório Institucional de Geociências - RIGEO
collection Repositório Institucional de Geociências - RIGEO
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