
Antônio Carlos Pedrosa‐Soares, Carlos Maurício Noce, Ph. Vidal, R.L.B.P Monteiro, O. H. Leonardos,
The Araçuaí Belt is a Late Proterozoic (Brasiliano Cycle) geotectonic unit which was developed along the southeastern margin of ... supracrustal sequence related to the evolution of the Araçuaí Belt —comprises the Terra Branca and Carbonita Formations, ... MSWD = 1.76 ). The structures of the northern Araçuaí Belt are marked by a doen-dip stretching ... of the belt, controlling the ellargement of the Araçuaí-West Congolian rift, with the neighbouring northern cratonic ... proposição de um novo modelo tectônico para Faixa Araçuaí-Oeste Congolesa (Ciclo Brasiliano-Panafricano). O Grupo Macaúbas, ...
Tópico(s): Geological formations and processes
1992 - Elsevier BV | Journal of South American Earth Sciences

Miguel Tupinambá, Mônica Heilbron, Beatriz Paschoal Duarte, José Renato Nogueira, Cláudia Sayão Valladares, Júlio Almeida, Luiz Guilherme do Eirado Silva, Sílvia Regina de Medeiros, Clayton Guia de Almeida, Alan Miranda, Célia Diana Ragatky, Júlio Cézar Mendes, Isabel Pereira Ludka,
... sua correlação com o segmento sul da Faixa Araçuaí. A compartimentação tectônica da FaixaRibeira, estabelecida no seu ... da Faixa Ribeira e osegmento meridional da Faixa Araçuaí, ainda em andamento, sugere a continuidade lateral do ... do TerrenoOriental para o Domínio Interno da Faixa Araçuaí. Neste sentido, os metassedimentos do Grupo Rio Doce ... to understand the correlations between the Ribeira and Araçuaí belts.Four tectono-stratigraphic terrains have been already ... town and probably do not extends into the Araçuaí Belt. The correlation between the northernsection of the ...
Tópico(s): Geography and Environmental Studies
2013 - | Revista Geonomos

Antônio Carlos Pedrosa‐Soares, Carlos Maurício Noce, Fernando F. Alkmim, Luiz Carlos da Silva, Marly Babinski, Umberto G. Cordani, Cristiane Castañeda,
The Araçuaí Fold Belt was defined as the southeastern limit of the São Francisco Craton in the classicalpaper published ... and a calc-alkaline magmaticarc, related to the Araçuaí Belt and paleotectonic correlations with its counterpart located ... Belt), that provided solid basis to define the Araçuaí-West-Congo Orogen by the end of the ... Ocean in Cretaceous times, two thirds of the Araçuaí-West-CongoOrogen remained in the Brazil side, including ... pre-collisionalto post-collisional stages. Thus, the name Araçuaí Orogen has been applied to the Neoproterozoic-Cambrianorogenic ...
Tópico(s): Geological and Geochemical Analysis
2013 - | Revista Geonomos

Antônio Carlos Pedrosa‐Soares, Fernando F. Alkmim,
... EVENTOS DE RIFTEAMENTO PRECEDERAM O DESENVOLVIMENTO DO ORÓGENO ARAÇUAÍ-CONGO OCIDENTAL? A edificação do Orógeno Araçuaí-Congo Ocidental teve início por volta de 630 ... anorogênico que afetaram a região ocupada pelo Orógeno Araçuaí-Congo Ocidental, bem como o domínio cratônico São ... Formação Sopa-Brumadinho (Supergrupo Espinhaço), exposta na Faixa Araçuaí. Os três primeiros eventos (E1, E2 e E3) ... são manifestações de E5, em terrenos do Orógeno Araçuaí e Cráton do São Francisco. O evento criogeniano, ... desmembrá-la.Palavras-chave: rifte, magmatismo anorogênico, Orógeno Araçuaí-Congo Ocidental, Cráton São Francisco-Congo ABSTRACT: The ...
Tópico(s): Paleontology and Stratigraphy of Fossils
2013 - | Revista Geonomos

Fernando F. Alkmim, Antônio Carlos Pedrosa‐Soares, Carlos Maurício Noce, Simone Cerqueira Pereira Cruz,
... do SãoFrancisco pelo sudeste e sul, a Faixa Araçuaí é hoje entendida como parte do domínio metamórfico externodo Orógeno Araçuaí-Congo Ocidental. Este componente da grande rede orogênica ... Faixa Oeste-Congolesa e, no Brasil, a Faixa Araçuaí e terrenos adjacentes aleste, possui uma série de ... evolução essencialmente ensiálica. Os estudos realizados no Orógeno Araçuaí mostram,entretanto, que geração e consumo de assoalho ... Analisado do ponto de vista tectônico, o Orógeno Araçuaí-Congo Ociental pode ser subdividido emdez compartimentos, os ...
Tópico(s): Paleontology and Stratigraphy of Fossils
2013 - | Revista Geonomos

Luiz Carlos da Silva, Antônio Carlos Pedrosa‐Soares, Richard Armstrong, Carlos Maurício Noce,
... compilação bibliográfica, limitam o estágio sincolisional do Orógeno Araçuaí em ca. 585-560 Ma, provavelmente contemporâneo do ... o Cráton do Congo, representada pela cicatriz orogênica Araçuaí-Ribeira Setentrional, teve sua fase terminal em torno ... Palavras-chave: geocronologia U-Pb, zircão, colisão, Orógeno Araçuaí, Gondwana ABSTRACT: DETERMINING THE TIMING OF THE COLLISIONAL PERIOD OF THE ARAÇUAÍ OROGEN BY USING HIGH RESOLUTION U-Pb GEOCHRONOLOGY ... literature, constrain the syn-collisional stage of the Araçuaí orogen from ca. 585 Ma to ca. 560 ...
Tópico(s): Geochemistry and Elemental Analysis
2013 - | Revista Geonomos
Luiz Carlos da Silva, Richard Armstrong, Carlos Maurício Noce, Maurício Antônio Carneiro, Márcio Martins Pimentel, Antônio Carlos Pedrosa‐Soares, Carlos Augusto Bonifácio Leite, Válter Salino Vieira, Márcio Antonio da Silva, Vinícius José de Castro Paes, João Moraes Cardoso Filho,
... Craton and at the adjacent Proterozoic Mineiro and Aracuai orogens. Samples were collected along several E-W ... One of the major basement inliers within the Aracuai Orogen, the Caparao charnockitic granulite, revealed magmatic crystallization ... Pocrane Complex, also a basement inlier within the Aracuai Orogen, yielded an age of ca . 1500 Ma. ... magmatism found in the African counterpart of the Aracuai Orogen. Four gneissic granites from the Aracuai Orogen (three of them previously interpreted as part ... monazite and zircon in other localities from the Aracuai Orogen. This youngest ages could be related to ...
Tópico(s): earthquake and tectonic studies
2002 - Sociedade Brasileira de Geologia | Brazilian Journal of Geology

Tatiana Gonçalves Dias, Antônio Carlos Pedrosa‐Soares, Ivo Dussin, Fernando F. Alkmim, Fabrício de Andrade Caxito, Luiz Carlos da Silva, Carlos Maurício Noce,
... uma das unidades metassedimentares mais extensas do Orógeno Araçuaí. Na área-tipo, situada na região de Jequitinhonha - ... de margem passiva da bacia precursora do Orógeno Araçuaí, mais novo que a glaciação Macaúbas e, portanto, ... OF THE JEQUITINHONHA COMPLEX IN THE TYPE-AREA (ARAÇUAÍ OROGEN): FIRST U-PB (LA-ICP-MS) DATA ... of the most extensive metasedimentary units of the Araçuaí Orogen. In the type-area, located in the ... margin deposit of the precursor basin of the Araçuaí Orogen, younger than the Macaúbas glaciation and, thus, ...
Tópico(s): Geological and Geochemical Analysis
2013 - | Revista Geonomos

Ana Fonseca, Tiago Amâncio Novo, Tobias Fonte-Boa, Matheus Kuchenbecker, Daniel Galvão Carnier Fragoso, Daniel Peifer, Antônio Carlos Pedrosa‐Soares, Johan De Grave,
The Araçuaí Orogen, in eastern Brazil, was formed during the Neoproterozoic – Cambrian amalgamation of West Gondwana. During the Mesozoic – ... systems have been exploited. Our understanding of the Araçuaí Orogen's passive margin evolution, erosion, and sediment ... modelling of (Pre)Cambrian basement rocks from the Araçuaí Orogen resolve three discrete basement cooling and associated ... Pre-Rift phase, Jurassic – Hauterivian erosion of the Araçuaí Orogen is most likely related to the adjoining ... spatially and are controlled by inherited structures. The Araçuaí Orogen experienced slower denudation rates in areas closer ...
Tópico(s): earthquake and tectonic studies
2023 - Elsevier BV | Geoscience Frontiers

Rita da Cunha Leal Menezes, Herbet Conceição, Maria de Lourdes da Silva Rosa, Moacir José Buenano Macambira, Marco Antônio Galarza, Débora Correia Rios,
... magmatismo do Toniano, na extremidade nordeste da Faixa Araçuaí.Palavras-Chave: granito tipo A, Toniano, Faixa Araçuaí, Bahia ABSTRACT: GEOCHEMISTRY AND GEOCHRONOLOGY OF TONIAN (ca. 914-899 Ma) ANOROGENIC GRANITES OF THE ARAÇUAÍ BELT, SOUTHERN BAHIA STATE, BRAZIL. Five ellipsoidal granitic ... type magmatism in the northeastern tip of the Araçuaí Belt.Keywords: A-type granite, Tonian, Araçuaí Belt, Bahia.
Tópico(s): Clay minerals and soil interactions
2012 - | Revista Geonomos

Juliane Belém, Antônio Carlos Pedrosa‐Soares, Carlos Maurício Noce, Luiz Carlos da Silva, Richard Armstrong, André Fleck, Camila Gradim, Gláucia Queiroga,
... região de alto grau metamórfico do sistema orogênico Araçuaí-Ribeira, evidenciam que esta extensa unidade estratigráfica inclui ... o clímax metamórfico-anatético na zona de fronteira Araçuaí-Ribeira. Destaca-se que o Grupo Andrelândia Superior, ... uma, na Faixa Brasília e, outra, no sistema Araçuaí-Ribeira.Palavras-chave: geocronologia U-Pb, litoquímica, Grupo ... area to the high grade core of the Araçuaí-Ribeira orogenic system, suggest that this extensive stratigraphic ... Ma to the metamorphic-anatectic climax in the Araçuaí-Ribeira boundary zone. It is important to notice ...
Tópico(s): Geochemistry and Geologic Mapping
2013 - | Revista Geonomos

Diêgo Faustolo Alves Bispo, Alexandre Christófaro Silva, Cristiano Christófaro, Max Leandro Naves Silva, Maurício Soares Barbosa, Bárbara Pereira Christófaro Silva, Uidemar Moraes Barral,
... in peatlands from the headwaters of the Rio Araçuaí (Araçuaí River) in different stages of preservation. Two cores ... were sampled. Both are tributaries of the Rio Araçuaí. Samples were taken from layers of 15 cm, ... 34 parameters. The headwater peatlands of the Rio Araçuaí have a predominance of organic material in an ... the peatlands of the headwaters of the Rio Araçuaí shows marked differences with respect to its morphological, ...
Tópico(s): Lichen and fungal ecology
2015 - Sociedade Brasileira de Ciência do Solo | Revista Brasileira de Ciência do Solo

Mahyra Tedeschi, Tiago Amâncio Novo, Antônio Carlos Pedrosa‐Soares, Ivo Dussin, Colombo Celso Gaeta Tassinari, Luiz Carlos Silva, Leonardo Gonçalves, Fernando F. Alkmim, Cristiano Lana, Célia C.M. Figueiredo, Elton Luiz Dantas, Sílvia Regina de Medeiros, Cristina de Campos, Felipe Corrales, Mônica Heilbron,
... discovery of plate margin magmatic arcs in the Araçuaí-Ribeira orogenic system (southeastern Brazil). In the 1990' ... Late Neoproterozoic calc-alkaline magmatic arc in the Araçuaí orogen. Meanwhile, the name Rio Doce magmatic arc ... applied to calc-alkaline plutons found in the Araçuaí-Ribeira boundary. After those pioneer studies, the calc- ... dies out in the ensialic sector of the Araçuaí orogen. At arc eastern and central zones, several ... and Marceleza complexes, making the link between the Araçuaí and Ribeira orogenic domains. We suggest three phases ...
Tópico(s): earthquake and tectonic studies
2015 - Elsevier BV | Journal of South American Earth Sciences

Matheus Kuchenbecker, Humberto Reis, Luiz Carlos da Silva, Ricardo Diniz da Costa, Daniel Galvão Carnier Fragoso, Luiz Guilherme Knauer, Ivo Dussin, Antônio Carlos Pedrosa Soares,
... the São Francisco Craton is limited by the Araçuaí-West Congo Orogen, which is composed, in its ... come both from the Brasília Belt or the Araçuaí Orogen. On the other hand, zircons as young ... Três Marias Formation sandstones indicate contribution from the Araçuaí Orogen. An important part of the sediment supply ... borda leste o cráton é limitado pelo Orógeno Araçuaí-Congo Ocidental, que é composto, em sua porção ... fontes possíveis na Faixa Brasília e no Orógeno Araçuaí, enquanto zircões com c.580 Ma, encontrados na ...
Tópico(s): Geography and Environmental Studies
2015 - | Revista Geonomos

Fernando F. Alkmim, Matheus Kuchenbecker, Humberto Reis, Antônio Carlos Pedrosa‐Soares,
The Araçuaí belts extends along the curved southeastern margin of the São Francisco craton between the Brazilian coast and ... external, basement-involved fold-thrust belt of the Araçuaí-West Congo confined orogen (AWCO), which formed due ... grade and granitic core of the AWCO, the Araçuaí belt involves a basement assemblage older than 1. ... folds, developed between 575 and 530 Ma. The Araçuaí orogenic front propagates into the craton interior and ... the stratigraphic framework and overall structure of the Araçuaí belt, emphasizing the paleogeographic and tectonic significance of ...
Tópico(s): Geochemistry and Geologic Mapping
2016 - Springer International Publishing | Regional geology reviews

Antônio Carlos Pedrosa‐Soares, Philippe Vidal, O. H. Leonardos, Benjamim Bley de Brito Neves,
... refutation of an exclusively ensialic evolution for the Araçuaí–West Congo orogen Antônio Carlos Pedrosa-Soares; Antônio ... refutation of an exclusively ensialic evolution for the Araçuaí–West Congo orogen. Geology 1998;; 26 (6): 519– ... All ContentBy SocietyGeology Search Advanced Search Abstract The Araçuaí (eastern Brazil) and West Congo (southwestern Africa) belts ... alkalic granitoids along the internal domain of the Araçuaí belt implies that a reasonably large amount of ... east-dipping subduction zone, during formation of the Araçuaí–West Congo orogen. This content is PDF only. ...
Tópico(s): earthquake and tectonic studies
1998 - Geological Society of America | Geology

Ana Fonseca, Tiago Amâncio Novo, Simon Nachtergaele, Tobias Fonte-Boa, Gerben Van Ranst, Johan De Grave,
The São Francisco Craton (SFC) and its marginal Araçuaí and Brasília orogens exhibit a significant diversity in ... SFC and the relatively weak lithosphere of the Araçuaí Orogen were disrupted during the Cretaceous opening of ... Phanerozoic reactivations in the shallow crust of the Araçuaí Orogen have been revealed by low-temperature thermochronology, ... from the Brasília Orogen, the SFC and the Araçuaí Orogen, far from the passive margin of the ... Cretaceous to Cenomanian, recorded by samples from the Araçuaí Orogen; and (iii) Late Cretaceous to Paleocene, inferred ...
Tópico(s): Geochemistry and Geologic Mapping
2021 - Elsevier BV | Gondwana Research

Antônio Carlos Pedrosa‐Soares, Fernando F. Alkmim, L. Tack, Carlos Maurício Noce, Marly Babinski, L. C. Silva, Marcelo A. Martins-Neto,
Abstract The Araçuaí–West Congo orogen encompasses orogenic domains located to the SE of the São Francisco Craton in Brazil, and ... the South Atlantic Ocean in Cretaceous time, the Araçuaí–West Congo orogen was split into two quite different but complementary counterparts. The Brazilian side (Araçuaí orogen) inherited two thirds of the whole orogenic ... the West Congo Belt. Both counterparts of the Araçuaí–West Congo orogen include Neoproterozoic glaciogenic deposits, allowing ...
Tópico(s): Paleontology and Stratigraphy of Fossils
2008 - Geological Society of London | Geological Society London Special Publications

Tiago Amâncio Novo, Antônio Carlos Pedrosa Soares, Carlos Maurício Noce, Fernando F. Alkmim, Ivo Dussin,
The Aracuai and Ribeira orogens are a Cambrian-Neoproterozoic belt that extends from the eastern edge of the San ... grade metamorphic rocks are exposed in the southern Aracuai Belt, SE Minas Gerais, reflecting a deep crustal ... is coeval with the pre-collisional stage of Aracuai Orogen evolution, and probably represents the magmatic arc ... importance in order to unveil the link between Aracuai and Ribeira orogens.
Tópico(s): Geography and Environmental Studies
2010 - Sociedade Brasileira de Geologia | Brazilian Journal of Geology

Tiago Amâncio Novo, Antônio Carlos Pedrosa Soares, Carlos Maurício Noce, Fernando F. Alkmim, Ivo Dussin,
The Araçuaí and Ribeira orogens are a Cambrian-Neoproterozoic belt that extends from the eastern edge of the San ... grade metamorphic rocks are exposed in the southern Araçuaí Belt, SE Minas Gerais, reflecting a deep crustal ... is coeval with the pre-collisional stage of Araçuaí Orogen evolution, and probably represents the magmatic arc ... importance in order to unveil the link between Araçuaí and Ribeira orogens.
Tópico(s): Geography and Environmental Studies
2010 - Sociedade Brasileira de Geologia | Revista Brasileira de Geociências

Guilherme G. Peres, Fernando F. Alkimim, Hanna Jordt-Evangelista,
The Araçuaí belt corresponds to the external portion of the western half of the Araçuaí-West Congo Neopro-terozoic orogen. TheAraçuaí belt fringes ... by the Abre Campo geophysical discontinuity. The southern Araçuaí belt involves four major lithologic units: the Archean ... gondites and marbles. All units of the southern Araçuaí belt underwent four syn-metamorphic phases of deformation ...
Tópico(s): earthquake and tectonic studies
2004 - Brazilian Academy of Sciences | Anais da Academia Brasileira de Ciências
Alexandre Uhlein, Roland Trompette, Marcos Egydio‐Silva,
... of the transition zone between São FranciscoCraton and Araçuaí Fold Belt in the Minas Gerais state. Two ... termal subsidence).The second extensional phase corresponded to Araçuaí rift formation (1000-900 Ma), with maficdikes swarm ... Jequitaí Formation) was deposited. To east, in the Araçuaí basin, they grade intomarine deposits with gravitational sedimentation ( ... the basement. No equivalentshave been identified in the Araçuaí basin either they have not been deposited or ... this orogenicevent the São Francisco Craton and the Araçuaí and Paramirim Fold Belts were formed as individualgeotectonics ...
Tópico(s): Geological formations and processes
1995 - | Revista Geonomos

Luiz Carlos da Silva, Antônio Carlos Pedrosa‐Soares, Richard Armstrong, Claiton Piva Pinto, Joana Reis Magalhães, Marco Aurélio Piacentini Pinheiro, Gabriella Galliac Santos,
... of the São Francisco craton reworked in the Araçuaí orogen, the Porteirinha domain, Brazil. It also includes ... Rhyacian terranes from the São Francisco craton and Araçuaí orogen. The main target of this study is ... of the exposed eastern cratonic margin within the Araçuaí orogen. Whole-rock Sm–Nd analysis from the ... the Ediacaran Brasiliano overprinting, event imposed by the Araçuaí orogen.
Tópico(s): earthquake and tectonic studies
2015 - Elsevier BV | Journal of South American Earth Sciences

Wilson Teixeira, Sandra L. Kamo, João Baptista A. Arcanjo,
... between the São Francisco Craton and the Neoproterozoic Araçuaí belt. One of these batholiths, the Itabuna syenitic ... age of main metamorphism and deformation in the Araçuaí belt. This similarity in age coupled with the ... Province and the crustal shortening related to the Araçuaí collision. A suite sienítica Itabuna faz parte da ... Cráton do São Francisco e a faixa marginal Araçuaí. A província é composta por vários stocks e ... da Bahia associa-se à colisão da Faixa Araçuaí, ocorrida no Neoproterozóico. Tal interpretação é fundamentada na ...
Tópico(s): Geological formations and processes
1997 - Elsevier BV | Journal of South American Earth Sciences

Eliza Peixoto, Fernando F. Alkmim, Antônio Carlos Pedrosa‐Soares, Cristiano Lana, Alexandre Oliveira Chaves,
Abstract The Araçuaí orogen is the Brazilian counterpart of the Araçuaí‐West Congo orogenic system ( AWCO ), a component of the Ediacaran‐ ... of West Gondwana. The northwestern portion of the Araçuaí orogen is dominated by a succession of metasedimentary ... 640°C at c . 530 Ma. The northwestern Araçuaí orogen exhibits, thus, a paired metamorphic pattern, in ...
Tópico(s): Geochemistry and Geologic Mapping
2017 - Wiley | Journal of Metamorphic Geology

Haakon Fossen, Geane Carolina G. Cavalcante, Renato Paes de Almeida,
... zone and the very hot Brasiliano/Pan‐African Araçuaí‐West Congo orogen. A cold and stiff subducting ... foreland. This was never achieved in the hot Araçuaí‐West Congo orogen, where much of the tectonic ... the Caledonides are therefore less common in the Araçuaí‐West Congo orogen. Further, the deep continental subduction ... variations in pressure and temperature. In contrast, the Araçuaí‐West Congo orogen soon developed into a more ...
Tópico(s): High-pressure geophysics and materials
2017 - Wiley | Tectonics

Kathryn Cutts, Cristiano Lana, Fernando F. Alkmim, Guilherme G. Peres,
... Cambrian. One of these Brasiliano-age orogens, the Araçuaí belt, overprints an earlier orogen developed during the ... Archean and Paleoproterozoic basement units in the southern Araçuaí belt have been shown to have experienced both ... granulite- and amphibolite-facies samples from the southern Araçuaí belt. Granulite-facies samples from the Acaiaca Complex ... the Transamazonian and Brasiliano events in the southern Araçuaí belt.
Tópico(s): earthquake and tectonic studies
2018 - Elsevier BV | Gondwana Research

Raíssa Santiago, Fabrício de Andrade Caxito, Antônio Carlos Pedrosa‐Soares, Mirna Aparecida Neves, Salomão Silva Calegari, Cristiano Lana,
... the eastern transition zone between the Neoproterozoic–Eopaleozoic Araçuaí and Ribeira orogens (southeastern Brazil). The studied paleosomes ... intra-arc to back-arc zones of the Araçuaí orogen, and with the orogenic succession of the distal Andrelândia Group, shared by both the Araçuaí and Ribeira orogens. Furthermore, our data also suggest ... key hints to unravel the evolution of the Araçuaí - Ribeira orogenic system (AROS) and its role in ...
Tópico(s): Geochemistry and Geologic Mapping
2022 - Elsevier BV | Journal of South American Earth Sciences

Maximiliano Martins, Joachim Karfunkel, Carlos Maurício Noce, Marly Babinski, Antônio Carlos Pedrosa‐Soares, Alcídes N. Sial, Dunyi Liu,
... the register of the rifting phase of the Aracuai Basin. This paper presents the sedimentary evolution and ... the Macaubas Group and Espinhaco Supergroup of the Aracuai orogen, located at the Macaubas River basin (Minas ... represents the precursor basin of the Neo- proterozoic Aracuai orogen and the pre-glacial sedimentation is represented ...
Tópico(s): Geological formations and processes
2008 - Sociedade Brasileira de Geologia | Brazilian Journal of Geology

Antônio Carlos Pedrosa‐Soares, Marly Babinski, Carlos Maurício Noce, Maximiliano Martins, Gláucia Queiroga, Francisco Teixeira Vilela,
... records accumulation in the precursor basin of the Araçuaí orogen, located on the eastern margin of the ... Folha formations. In the central sector of the Araçuaí orogen, the oldest glaciogenic unit of the group, ... floor rocks. In the northern sector of the Araçuaí orogen, the sandstone-pelite succession of the pre- ...
Tópico(s): earthquake and tectonic studies
2011 - Zoological Society of London | Geological Society London Memoirs