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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?

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Date

2012

Authors

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

Journal Title

Journal ISSN

Volume Title

Publisher

Pergamon-Elsevier Ltd

Abstract

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

Description

Keywords

Keywords: Archean; crustal evolution; gneiss; granodiorite; in situ measurement; monazite; partial melting; samarium-neodymium dating; SHRIMP dating; tonalite; trondhjemite; zircon; Bahia; Brazil; Sao Francisco Craton; Decapoda (Crustacea) Archean and Paleoproterozoic; Bahia-Brazil; Gavião block; In-situ monazite ages (EPMA, LA-ICPMS); SHRIMP zircon ages; Sm-Nd

Citation

URI

http://hdl.handle.net/1885/52661

Collections

ANU Research Publications

Source

Journal of South American Earth Sciences

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1016/j.jsames.2012.09.004

Restricted until

2037-12-31

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01_Santos-Pinto_Crustal_evolution_between_2.0_2012.pdf (1.34 MB)

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