Stratigraphy, petrography and tectonics of the manganese-bearing Buritirama Formation, Northern Carajás Domain, Amazon Craton.

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorSalgado, Silas Santos-
Autor(es): dc.creatorCaxito, Fabrício de Andrade-
Autor(es): dc.creatorQueiroga, Gláucia Nascimento-
Autor(es): dc.creatorCastro, Marco Paulo de-
Data de aceite: dc.date.accessioned2025-08-21T15:05:14Z-
Data de disponibilização: dc.date.available2025-08-21T15:05:14Z-
Data de envio: dc.date.issued2020-04-13-
Data de envio: dc.date.issued2020-04-13-
Data de envio: dc.date.issued2019-
Fonte completa do material: dc.identifierhttp://www.repositorio.ufop.br/handle/123456789/12061-
Fonte completa do material: dc.identifierhttps://doi.org/10.1590/2317-4889201920180106 -
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1002178-
Descrição: dc.descriptionThe Buritirama Formation (BF) occurs at the extreme north of the Carajás Province, close to the contact with the Bacajá domain, in the southeastern portion of the Amazon Craton (Brazil). The BF consists of a 40 km long, ca. 3 km wide NW-SE trending structure arranged in four imbricated thrusts that individualize three main stratigraphic units. The lower unit is composed of orthoquartzite followed by carbonate-silicate rocks. The intermediate unit hosts a supergene manganese ore deposit formed by weathering of kutnohorite-rich marble. ­Quartzite/­mica-quartz schist followed by carbonate-silicate rocks make up the upper unit. The local basement is constituted by orthogneiss-migmatite (Xingu Complex) and the Buritirama metagranite. Mineral chemistry data and metamorphic textures record high consumption of carbonate and quartz to produce clinopyroxenes. The structural assemblage of the BF records mass transport from NE to SW and the following deformational phases: D1 (compressional ductile), D2 (compressional brittle) and D3 (extensional brittle). The BF is interpreted as part of a platformal depositional system positioned at the border of the Carajás domain, which was probably inverted, deformed and metamorphosed during the Transamazonian event (ca. 2.1 Ga), in a deformation belt related to the amalgamation between the Carajás and Bacajá domains.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsaberto-
Direitos: dc.rightsThis is an open access article distributed under the terms of the Creative Commons license. Fonte: o próprio artigo.-
Palavras-chave: dc.subjectManganese deposit-
Palavras-chave: dc.subjectBacajá-
Palavras-chave: dc.subjectCarbonate-silicate rocks-
Palavras-chave: dc.subjectPaleoproterozoic-
Título: dc.titleStratigraphy, petrography and tectonics of the manganese-bearing Buritirama Formation, Northern Carajás Domain, Amazon Craton.-
Aparece nas coleções:Repositório Institucional - UFOP

Não existem arquivos associados a este item.