Depositional setting and U-Pb detrital record of rift‐related deposits in the Moeda Formation (Minas Supergroup) at the Gandarela and Ouro Fino synclines, Quadrilátero Ferrífero, Brazil.

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dc.contributor.authorMadureira, Rafael da Silva
dc.contributor.authorMartins, Maximiliano de Souza
dc.contributor.authorQueiroga, Gláucia Nascimento
dc.contributor.authorLana, Cristiano de Carvalho
dc.contributor.authorDutra, Luiz Fernandes
dc.contributor.authorAlkmim, Ana Ramalho
dc.date.accessioned2022-09-13T20:13:36Z
dc.date.available2022-09-13T20:13:36Z
dc.date.issued2021pt_BR
dc.description.abstractThe Moeda Formation (Caraça Group, base of Minas Supergroup) registers the initial rift stages of the Minas Basin in the Quadrilátero Fer- rífero, Southern São Francisco craton, SE-Brazil. We present stratigraphic and U-Pb detrital zircon dating analyses of the Moeda Formation that contribute to the comprehension of its sedimentary evolution in the southernmost Gandarela and Ouro Fino synclines (Central-Eastern Quadrilátero Ferrifero). The Moeda Formation sequence consists of a basal proximal alluvial fan with clast-supported conglomerates, grading upward into an alluvial floodplain with quartz arenites, and upper massive sandstones from distal fluvial fans. Because the Moeda Formation is normally limited by similar lithologies at both its base (Nova Lima Group, Rio das Velhas Supergroup) and top (Batatal Formation, upper- most Caraça Group) and stratigraphic inversion has occurred in the study area, U-Pb detrital zircon dating was also extended to these units to differentiate them stratigraphically. The youngest clusters of detrital zircon ages in the Nova Lima Group and Moeda and Batatal formations were 2716, 2777 and 2786 Ma, respectively. Based on our data and relevant literature, the depositional age of the Moeda Formation was interpreted as between 2716 and 2520 Ma with the Mesoarchean continental crust, the Rio das Velhas Supergroup and the Archean TTG complexes as its main source areas.pt_BR
dc.identifier.citationMADUREIRA, R. da S. et al. Depositional setting and U-Pb detrital record of rift‐related deposits in the Moeda Formation (Minas Supergroup) at the Gandarela and Ouro Fino synclines, Quadrilátero Ferrífero, Brazil. Brazilian Journal of Geology, v. 51, 2021. Disponível em: <https://www.scielo.br/j/bjgeo/a/Qcf5NPtgP3cSV8fWwCPQCQc/?lang=en>. Acesso em: 29 abr. 2022.pt_BR
dc.identifier.doihttps://doi.org/10.1590/2317-4889202120200023pt_BR
dc.identifier.issn2317-4692
dc.identifier.urihttp://www.repositorio.ufop.br/jspui/handle/123456789/15240
dc.language.isoen_USpt_BR
dc.rightsabertopt_BR
dc.rights.licenseThis is an open access article distributed under the terms of the Creative Commons license. Fonte: o PDF do artigo.pt_BR
dc.subjectHigh-resolution stratigraphic frameworkpt_BR
dc.subjectFacies analysispt_BR
dc.subjectZircon U-Pbpt_BR
dc.subjectGeochronologypt_BR
dc.subjectMinas Basinpt_BR
dc.titleDepositional setting and U-Pb detrital record of rift‐related deposits in the Moeda Formation (Minas Supergroup) at the Gandarela and Ouro Fino synclines, Quadrilátero Ferrífero, Brazil.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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