Late Neoproterozoic–Cambrian granitic magmatism in the Araçuaí orogen (Brazil), the eastern brazilian pegmatite province and related mineral resources.

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dc.contributor.authorSoares, Antônio Carlos Pedrosa
dc.contributor.authorCampos, Cristina Maria Pinheiro de
dc.contributor.authorNoce, Carlos Maurício
dc.contributor.authorSilva, Luiz Carlos da
dc.contributor.authorNovo, Tiago Amâncio
dc.contributor.authorRoncato Júnior, Jorge Geraldo
dc.contributor.authorMedeiros, Silvia Regina de
dc.contributor.authorCastañeda, Cristiane
dc.contributor.authorQueiroga, Gláucia Nascimento
dc.contributor.authorDantas, Elton Luiz
dc.contributor.authorDussin, Ivo Antonio
dc.contributor.authorAlkmim, Fernando Flecha de
dc.date.accessioned2017-07-31T15:00:03Z
dc.date.available2017-07-31T15:00:03Z
dc.date.issued2011
dc.description.abstractThe Araçuí orogen extends from the eastern edge of the São Francisco craton to the Atlantic margin, in southeastern Brazil. Orogenic igneous rocks, formed from c. 630 to c. 480 Ma, cover one third of this huge area, building up the Eastern Brazilian Pegmatite Province and the most important dimension stone province of Brazil. G1 supersuite (630–585 Ma) mainly consists of tonalite to granodiorite, with mafic to dioritic facies and enclaves, representing a continental calc-alkaline magmatic arc. G2 supersuite mostly includes S-type granites formed during the syn-collisional stage (585–560 Ma), from relatively shallow two-mica granites and related gem-rich pegmatites to deep garnet-biotite granites that are the site of yellow dimension stone deposits. The typical G3 rocks (545–525 Ma) are non-foliated garnet-cordierite leucogranites, making up autochthonous patches and veins. At the post-collisional stage (530–480 Ma), G4 and G5 supersuites were generated. The S-type G4 supersuite mostly consists of garnet-bearing two-mica leucogranites that are the source of many pegmatites mined for tourmalines and many other gems, lithium (spodumene) ore and industrial feldspar. G5 supersuite, consisting of high-K–Fe calc-alkaline to alkaline granitic and/or charnockitic to dioritic/noritic intrusions, is the source of aquamarine-topaz-rich pegmatites but mainly of a large dimension stone production.pt_BR
dc.identifier.citationSOARES, A. C. P. et al. Late Neoproterozoic–Cambrian granitic magmatism in the Araçuaí orogen (Brazil), the eastern brazilian pegmatite province and related mineral resources. Geological Society Special Publication, v. 350, p. 25-51, 2011. Disponível em: <http://sp.lyellcollection.org/content/350/1/25.full.pdf+html>. Acesso em: 20 de jun. 2017.pt_BR
dc.identifier.doihttps://doi.org/10.1144/SP350.3
dc.identifier.issn2041-4722
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/8376
dc.identifier.uri2http://sp.lyellcollection.org/content/350/1/25.full.pdf+htmlpt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.titleLate Neoproterozoic–Cambrian granitic magmatism in the Araçuaí orogen (Brazil), the eastern brazilian pegmatite province and related mineral resources.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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