Ciro Alexandre Ávila
Federal University of Rio de Janeiro
44 Papers
176 Citations
Ciro Alexandre Ávila is an academic researcher from Federal University of Rio de Janeiro. The author has contributed to research in topics: Zircon & Geology. The author has an hindex of 12, co-authored 39 publications.
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Papers
Rhyacian (2.23–2.20 Ga) juvenile accretion in the southern São Francisco craton, Brazil: Geochemical and isotopic evidence from the Serrinha magmatic suite, Mineiro belt
Ciro Alexandre Ávila,Wilson Teixeira,Umberto G. Cordani,Candido Augusto Veloso Moura,Ronaldo Mello Pereira +4 more
TL;DR: The Serrinha magmatic suite (Mineiro belt) as mentioned in this paper is a suite of granitoid intrusions, including Brito quartz-diorite, Brumado de Cima granodiorite and coeval granophyre.
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2.17–2.10 Ga plutonic episodes in the Mineiro belt, São Francisco Craton, Brazil: U-Pb ages, geochemical constraints and tectonics
TL;DR: In this paper, geologic information supported by in situ U-Pb zircon ages, and geochemistry coupled with Zircon Hf and Nd-Sr isotopic analyses on orthogneisses, metagranitoids and metadiorites unravel the nature and tectonic significance of a calc-alkaline continental arc in the Mineiro belt.
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Nd-Sr isotopic geochemistry and U-Pb geochronology of the Fé granitic gneiss and Lajedo granodiorite: implications for paleoproterozoic evolution of the mineiro belt, southern São Francisco Craton, Brazil
Wilson Teixeira,Ciro Alexandre Ávila,Luciana Cabral Nunes +2 more
- 01 Apr 2008
TL;DR: The Fe granitic gneiss and Lajedo granodiorite belong to a voluminous felsic-mafic plutonism, tectonically linked to Paleoproterozoic magmatic evolution of the Mineiro Belt, southern portion of the Sao Francisco Craton, central-eastern Brazil as discussed by the authors.
U-Pb LA-ICP-MS detrital zircon ages of the Sao Joao del Rei and Carandai basins: New evidence of intermittent Proterozoic rifting in the Sao Francisco paleocontinent
TL;DR: The Tiradentes Formation (Sao Joao del Rei basin) is a shallow marine quartzite succession resting on the Paleoproterozoic crust of the southern part of the Sao Francisco Craton as discussed by the authors.
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A Rhyacian continental arc during the evolution of the Mineiro belt, Brazil: Constraints from the Rio Grande and Brumado metadiorites
Carolina Dantas Cardoso,Ciro Alexandre Ávila,Reiner Neumann,Elson P. Oliveira,Claudio de Morisson Valeriano,Ivo Dussin +5 more
TL;DR: In this article, a study of the Rio Grande and Brumado metadiorites constrains processes of crust generation during the Rhyacian evolution of the Mineiro belt.
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