Henrique Bruno

Universidade do Estado do Rio de Janeiro

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Mônica Heilbron

Universidade do Estado do Rio de Janeiro

Cláudio de Morisson Valeriano

Universidade do Estado do Rio de Janeiro

Samuel Moreira Bersan

Universidade do Estado do Rio de Janeiro

Ivo Dussin

Universidade do Estado do Rio de Janeiro

Júlio Almeida

Universidade do Estado do Rio de Janeiro

Mike Fowler

University of Portsmouth

Craig Storey

University of Portsmouth

Cristiano Lana

Universidade Federal de Ouro Preto

Hugo Moreira

Université de Montpellier

Miguel Tupinambá

Universidade do Estado do Rio de Janeiro

Cooperative Institutions

Universidade do Estado do Rio de Janeiro

Instituto de Geociencias

Universidade de São Paulo

Universidade Federal de Ouro Preto

Universidade Federal de Minas Gerais

National Council for Scientific and Technological Development

University of Portsmouth

Universidade Federal do Rio de Janeiro

Petrobras (Brazil)

Hospital Universitário da Universidade de São Paulo

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Titanium Isotope Insights into the Formation and Evolution of Sanukitoid Magmas

Goldschmidt Abstracts (2023)

Laura Spencer Capucine Albert Helen M. Williams Oliver Nebel I. J. Parkinson

10.7185/gold2023.14477

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Citations (0)

Evidence of Siderian juvenile-like contribution to the continental arc magmatism in the Western Guanambi-Correntina block, São Francisco Craton (Brazil)

Journal of South American Earth Sciences (2024)

Guilherme Bozelli Pontes Mahyra Tedeschi Humberto Reis Henrique Bruno Cristiano Lana

Supercontinent

Continental arc

Basement

Rodinia

10.1016/j.jsames.2024.104841

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Citations (2)

Tectonic inheritances in rifts: The meaning of NNE lineaments in the continental rift of SE-Brazil

Journal of South American Earth Sciences (2021)

João Paulo Giro Júlio Almeida Eliane Guedes Henrique Bruno

Lineament

Continental Margin

Transtension

10.1016/j.jsames.2021.103225

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Citations (11)

Rhyacian-Orosirian tectonic history of the Juiz de Fora Complex: Evidence for an Archean crustal reservoir within an island-arc system

Geoscience Frontiers (2021)

Rasec Almeida Vitalino Elizeu Henrique Bruno Samuel Moreira Bersan Lucas Eduardo de Abreu Barbosa Araujo

The southern São Francisco Paleocontinent (SFP) comprises Archean nuclei and Paleoproterozoic complexes encompassing magmatic arcs juxtaposed during a Rhyacian to Orosirian orogenic event. The Juiz de Fora Complex (JFC) represents an imbricated thrust system that comprises orthogranulites with a wide compositional range formed in an intra-oceanic setting during the Siderian to the Orosirian and later accreted to the southeastern margin of the SFP. Here we report new petrological, geochemical, whole-rock Nd and Sr data, as well as zircon U–Pb ages from felsic and mafic orthogranulites from the JFC. The new data is combined with a regional compilation that enables an evaluation of the interaction between magmatism and orogenetic episodes in the context of the consolidation of São Francisco Paleocontinent during the Rhyacian–Orosirian. Pre collisional Island Arc tholeiites (IAT), Tonalites-Trondhjemites-Granodiorites (TTGs) and sanukitoid magmatism occurred from 2200 Ma to 2085 Ma. This was followed by post-collisional magmatism, which is represented by hybrid granitoids coeval with the emplacement of E-MORB basic rocks. Crustal signatures for the Rhyacian to Orosirian evolution are highlighted by the dominance of negative εNd(t) associated with Meso- to Neoarchean Nd TDM model ages as well as inherited zircon grains from the hybrid granitoids. The JFC is extensively highlighted in the literature as a primitive intra-oceanic arc, but here we propose the reworking or recycling of ancient crustal segments within the mature arc stage of the JFC, suggesting a Mesoarchean crustal source involved in the JFC evolution.

Felsic

Continental arc

Island arc

10.1016/j.gsf.2021.101292

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Citations (9)

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 (2019)

Mônica Heilbron Caroline Oliveira Marcela Lobato Cláudio de Morisson Valeriano Ivo Dussin

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-TiO2 , TDMNd ages between 1.80 and 1.41 Ga, negative ΕNdt 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, TDMNd ages between 2.58 and 2.16 Ga, positive ΕNdt 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.

10.1590/2317-4889201920180129

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Citations (17)

Supplemental Material: Earth’s new tectonic regime at the dawn of the Paleoproterozoic: Hf isotope evidence for efficient crustal growth and reworking in the São Francisco craton, Brazil

Henrique Bruno et al.

Methodology and sample descriptions.<br>

10.1130/geol.s.14771130.v1

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Citations (1)

Integration of elemental and isotope data supports a Neoproterozoic Adamastor Ocean realm

Geochemical Perspectives Letters (2021)

Fabrício de Andrade Caxito Mônica Heilbron Cláudio de Morisson Valeriano Henrique Bruno Antônio Carlos Pedrosa‐Soares

A robust elemental and isotopic dataset from Neoproterozoic igneous rocks discloses protracted consumption of oceanic lithosphere in the 3,000 km long orogenic system of southeastern South America.Time dependent isotopic variation trends suggest that Tonian-Cryogenian magmatic rocks formed in intra-oceanic supra-subduction settings, followed by Ediacaran magmatic arc building along Andean-type continental margins.Tectonic slices of basic-ultrabasic rocks associated with deep sea and exhalative rocks are interpreted as remnants of obducted oceanic lithosphere.Protracted closure of the oceanic realm resulted in a Himalayas-sized orogenic belt during Ediacaran-Cambrian collision, as recorded by voluminous aluminum-rich syn-collisional granites followed by post-collisional intrusions.The duration and rates of crust forming processes in island arc, continental margins and collisional settings imply that a vast Adamastor oceanic realm was consumed to form western Gondwana.

Realm

10.7185/geochemlet.2106

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Citations (33)

A reply to Fossen et al. (2020) comment to “Neoproterozoic magmatic arc systems of the central Ribeira belt, SE-Brazil, in the context of the West-Gondwana pre-collisional history: A review”

Journal of South American Earth Sciences (2020)

Mônica Heilbron Cláudio de Morisson Valeriano Caroline Peixoto Miguel Tupinambá Franz Neubauer

10.1016/j.jsames.2020.103113

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Citations (2)

Rhyacian-Orosirian transitional arc-collisional magmatism in the Archean Piedade Microcontinent, southern São Francisco Paleocontinent, Brazil

Precambrian Research (2024)