2018
DOI: 10.11606/issn.2316-9095.v18-125724
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Auréola termal provocada pela intrusão do pluton Totoró em micaxistos do Grupo Seridó, Ediacarano da Província Borborema, NE do Brasil

Abstract: A Província Borborema, NE do Brasil, é marcada por volumoso plutonismo ediacarano. Neste contexto geológico, o plutão Totoró, um corpo alongado NNE-SSW, compõe-se de uma sequência de tipos básicos a intermediários, incluindo dioritos e gabro-noríticos (mais precoces), granodioritos / tonalitos (predominante), biotita granitos equigranulares, biotita granitos porfiríticos e hololeucogranitos finos a médios. Dados químicos permitem estimar pressões de 1,6-2,7 kbar e temperaturas de 800-900oC para sua colocação. … Show more

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“…The shoshonitic suite, formerly São João do Sabugi Intrusive Suite (Angelim et al 2006), includes the less evolved lithotypes ( Jardim de Sá 1994, Hollanda et al 2003, Nascimento et al 2015. They occur mainly as enclaves into PHKCalcAlk, CalcAlk, and Alk types, frequently with mixing and mingling features (e.g., Antunes et al 2000, Hollanda et al 1999, Macedo Filho and Souza 2016, Chagas et al 2018. Isolated shoshonitic plutons and stocks (e.g., Poço Verde, Casserengue, Riachão, and Rio Espinharas plutons; Fig.…”
Section: Introductionmentioning
confidence: 99%
“…The shoshonitic suite, formerly São João do Sabugi Intrusive Suite (Angelim et al 2006), includes the less evolved lithotypes ( Jardim de Sá 1994, Hollanda et al 2003, Nascimento et al 2015. They occur mainly as enclaves into PHKCalcAlk, CalcAlk, and Alk types, frequently with mixing and mingling features (e.g., Antunes et al 2000, Hollanda et al 1999, Macedo Filho and Souza 2016, Chagas et al 2018. Isolated shoshonitic plutons and stocks (e.g., Poço Verde, Casserengue, Riachão, and Rio Espinharas plutons; Fig.…”
Section: Introductionmentioning
confidence: 99%