The Rio Doce Orogeny, Southeastern Brazil

Neto, M.C. Campos; Figueiredo, Mário Cesar Heredia de

doi:10.1016/0895-9811(95)00002-w

Cited by 137 publications

(87 citation statements)

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“…The Araçuaí Belt, first portrayed by Almeida (1977), developed along the southeastern margin of the São Francisco Craton, is one of the oldest events to influence the relief before the westernGondwana break-up (Campos- Neto & Figueiredo, 1995;Alkmim et al, 2007). The driven forces for the closure of an inland sea, the Adamastor Ocean, are probably triggered by collisions along the margins of the São Francisco-Congo plate involving several orogenic steps during Cambro-Ordovician limit (Potter, 1997;Alkmin et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

Glanidium botocudo, a new species from the rio Doce and rio Mucuri, Minas Gerais, Brazil (Siluriformes: Auchenipteridae) with comments on taxonomic position of Glanidium bockmanni Sarmento-Soares & Buckup

Sarmento-Soares

Martins-Pinheiro²

2013

Neotrop. ichthyol.

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1Glanidium botocudo, new species, is described from the tributaries to the upper rio Doce and Mucuri, eastern Minas Gerais State, Brazil. It represents the northernmost record of a centromochlin catfish from the coastal rivers of the Northeastern Atlantic Forest. Glanidium botocudo is readily distinguished from its congeners, except Glanidium albescens, by the whitish grey body coloration with evenly spaced small dark brown dots. The new species has a long sharpened ventral process on the urohyal, an uncommon condition among congeners, and the lowest vertebral count among the large-sized Glanidium, 36-37. It differs from Glanidium albescens by proportional measurements and higher number of ribs. Glanidium botocudo and Glanidium albescens are probably sister species, exhibiting similar morphological features and a complimentary distribution pattern, associated to an allopatric distribution pattern. Glanidium bockmanni is transferred to the genus Centromochlus.Glanidium botocudo, espécie nova, é descrita para tributários do alto rio Doce e rio Mucuri, leste de Minas Gerais, Brasil. Representa o registro mais ao norte de um bagre centromoclíneo nos rios do Nordeste da Mata Atlântica. Glanidium botocudo é prontamente distinguido de todos seus congêneres, exceto Glanidium albescens, pelo colorido cinza-esbranquiçado do corpo com máculas castanho-escuras regularmente espaçadas. A espécie nova apresenta processo ventral do uro-hial longo e afilado, uma condição incomum entre os congêneres, e ainda a menor contagem vertebral entre os Glanidium de grande porte, 36-37. Diferencia-se de Glanidium albescens por proporções corporais e maior número de costelas. Glanidium botocudo e Glanidium albescens são possivelmente espécies irmãs, apresentando características morfológicas similares e padrões de distribuição complementar, associados a um padrão de distribuição alopátrica. Glanidium bockmanni é transferido para o gênero Centromochlus.

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Section: Discussionmentioning

confidence: 99%

Glanidium botocudo, a new species from the rio Doce and rio Mucuri, Minas Gerais, Brazil (Siluriformes: Auchenipteridae) with comments on taxonomic position of Glanidium bockmanni Sarmento-Soares & Buckup

Sarmento-Soares

Martins-Pinheiro²

2013

Neotrop. ichthyol.

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“…During the main collisional period great volumes of calc-alkalic magma was produced and a syncollisional magmatic arc was formed , Tuller 1993, Cam-pos Neto & Figueiredo 1995, Pedrosa-Soares et al 1999.…”

Section: Introductionmentioning

confidence: 99%

Evidence of mingling between contrasting magmas in a deep plutonic environment: the example of Várzea Alegre, in the Ribeira Mobile Belt, Espírito Santo, Brazil

Medeiros¹,

WIEDEMANN-LEONARDOS

Vriend³

2001

An. Acad. Bras. Ciênc.

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At the end of the geotectonic cycle that shaped the northern segment of the Ribeira Mobile Belt (Upper Proterozoic to Paleozoic age), a late to post-collisional set of plutonic complexes, consisting of a wide range of lithotypes, intruded all metamorphic units. The Várzea Alegre Intrusive Complex is a post-collisional complex. The younger intrusion consists of an inversely zoned multistage structure envolved by a large early emplaced ring of megaporphyritic charnoenderbitic rocks. The combination of field, petrographic and geochemical data reveals the presence of at least two different series of igneous rocks. The first originated from the partial melting of the mantle. This was previously enriched in incompatible elements, low and intermediate REE and some HFS-elements. A second enrichment in LREE and incompatible elements in this series was due to the mingling with a crustal granitic magma. This mingling process changed the composition of the original tholeiitic magma towards a medium-K calc-alkalic magma to produce a suite of basic to intermediate rock types. The granitic magma from the second high-K, calc-alkalic suite originated from the partial melting of the continental crust, but with strong influence of mantle-derived melts.

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“…A Orogenia Rio Doce (590-480 Ma) foi caracterizada pela intrusão de granitoides pré-, sin-e pós-colisionais e pelo empilhamento de três segmentos crustais distintos na microplaca Serra do Mar (Figueiredo & Campos Neto, 1993;Campos Neto & Figueiredo, 1995 O período pós-colisional instalou-se entre 520 -480 Ma (Campos Neto & Figueiredo, 1995;Campos Neto, 2000).…”

Section: Análises Isotópicas U-pb E Lu-hf Via La-icp-msunclassified

“…Atualmente, são consideradas idades (U-Pb em zircão) de cristalização entre 630 e 585 Ma para o arco magmático Rio Doce, que correspondem aos estágios pré-colisional a sin-colisional do Orógeno Araçuaí (Nalini et al, 2000;2005;Pedrosa-Soares et al, 2011;Gonçalves et al, 2014;Tedeschi et al, 2015). Esse evento (Orogenia Rio Doce), que gerou uma extensa granitogênese no Cinturão Ribeira Central (Campos Neto & Figueiredo, 1995), também é referido como Orogenia…”

Section: Análises Isotópicas U-pb E Lu-hf Via La-icp-msunclassified

“…Atualmente, são reconhecidas três associações litológicas relativas a arcos magmáticos nesse terreno: o Complexo Serra da Bolívia, no Domínio Cambuci ; o Complexo Rio Negro, no domínio Costeiro (Tupinambá et al, 2012); e a unidade Serra da Prata, no domínio Italva (Peixoto and Heilbron, 2010). Esse terreno corresponde parcialmente à Microplaca Serra do Mar (Campos Neto & Figueiredo, 1995) e aos domínios Serra dos Órgãos e Litorâneo (Machado & Demange, 1994).…”

Section: Análises Isotópicas U-pb E Lu-hf Via La-icp-msunclassified

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Batólito Serra das Araras: um exemplo de magmatismo granítico peraluminoso sintectônico do Ediacarano, região sudoeste do estado do Rio de Janeiro

Retamal¹

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The Rio Doce Orogeny, Southeastern Brazil

Cited by 137 publications

References 0 publications

Glanidium botocudo, a new species from the rio Doce and rio Mucuri, Minas Gerais, Brazil (Siluriformes: Auchenipteridae) with comments on taxonomic position of Glanidium bockmanni Sarmento-Soares & Buckup

Glanidium botocudo, a new species from the rio Doce and rio Mucuri, Minas Gerais, Brazil (Siluriformes: Auchenipteridae) with comments on taxonomic position of Glanidium bockmanni Sarmento-Soares & Buckup

Evidence of mingling between contrasting magmas in a deep plutonic environment: the example of Várzea Alegre, in the Ribeira Mobile Belt, Espírito Santo, Brazil

Batólito Serra das Araras: um exemplo de magmatismo granítico peraluminoso sintectônico do Ediacarano, região sudoeste do estado do Rio de Janeiro

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