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Evolution structurale du sud du craton Sao Francisco; implications sur les mineralisations auriferes de la region d'Ouro Preto, Bresil
Article de revue

Evolution structurale du sud du craton Sao Francisco; implications sur les mineralisations auriferes de la region d'Ouro Preto, Bresil

Alain Chauvet et M. Menezes
Comptes rendus de l'Académie des sciences. Série 2, Mécanique, physique, chimie, sciences de l'univers, sciences de la terre, Vol.315(4), pp.495-501
1992

Résumé

Brazil cratons Economic geology, geology of ore deposits faults gold ores hydrothermal alteration hydrothermal processes igneous activity metal ores metamorphic rocks metasomatism Minas Gerais Brazil mineral deposits, genesis mineralization Ouro Preto Brazil paragenesis polyphase processes quartzites Sao Francisco Craton schists South America structural controls thrust faults
Two events are proposed to explain the geology of the Quadrilatero Ferrifero area: one consists of basement reactivation and the other is defined as west-vergent thrusting. Gold mineralization is interpreted to have been emplaced immediately after the thrusting event.

Indicateurs

1 Consultations de la notice

Détails

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