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Crustal evolution between 2.0 and 3.5 Ga in the southern Gaviao block (Umburanas-Brumado-Aracatu region), Sao Francisco Craton, Brazil: A 3.5-3.8 Ga photo-crust in the Gaviao block?

Santos-Pinto, Marilda; Peucat, J-J; Martin, H; Barbosa, Johildo F. S.; Fanning, Christopher; Cocherie, Alain; Paquette, Jean-Louis

Description

The main evolution of the Gavião block in the Umburanas-Brumado-Aracatu region, in the state of Bahia, is defined by several sets of tonalitic-trondhjemitic and granodioritic gneisses emplaced during the Paleoarchean. The juvenile Bernada gneisses are em

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
URI: http://hdl.handle.net/1885/52661
Source: Journal of South American Earth Sciences
DOI: 10.1016/j.jsames.2012.09.004

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