Geology of the Pitangui greenstone belt, Minas Gerais, Brazil: Stratigraphy, geochronology and BIF geochemistry

Mariana Brando Soares,Atlas Vasconcelos Corrêa Neto,Armin Zeh,Alexandre Raphael Cabral, Larissa Fernandes Pereira, Milton Guimarães Bueno do Prado, Antônio Modesto de Almeida,Luedson Guimarães Manduca,Pedro Henrique Montenegro da Silva,Ricardo Oliveira de Araújo Mabub, Thiago Mazutti Schlichta

Precambrian Research（2017）

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摘要

•New geological surface map for the Pitangui greenstone belt.•First detailed stratigraphic column of the Pitangui greenstone belt.•First isotopic age for rocks in the Pitangui greenstone belt.•Maximum depositional age and similar stratigraphy supports correlation with the base of Rio das Velhas belt.•Source area for clastic rocks characterized through U-Pb/Lu-Hf isotopes.•Register of a Meso- to Neoarchean oxygenation peak.

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关键词

Pitangui greenstone belt,Quadrilátero Ferrífero,Greenstone stratigraphy,Detrital zircon geochronology,BIF geochemistry

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