Structural and lithological controls of gold-bearing veins associated with the Brasiliano-Pan African Orogeny: An example from the Buracão Area, Araí Group (Brasília Fold Belt, Brazil)
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- 作者：Gustavo Luiz Campos Piresa ; gpiresgeologia@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Everton Marques Bongiolob ; Christophe Renacc ; Dé ; bora Barros Nascimentoa ; Maurí ; cio Pradod
- 关键词：Orogenic gold ; Brasí ; lia fold belt ; Deformational chronology ; Brasiliano&ndash ; Pan African Orogeny
- 刊名：Journal of South American Earth Sciences
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：66
- 期：Complete
- 页码：180-195
- 全文大小：8778 K
文摘
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The mapping units comprise intercalations of quartzites and phyllites of Traíras Fm.–Araí Group.
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The structures comprise two deformational phases, each subdivided in two stages.
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The formation of the three different vein types comprises distinct structural mechanisms.
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The ore deposition is controlled by structures and chemical interaction with phyllites.
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The Buracão area is an orogenic gold occurrence developed during Brasiliano–Pan African Orogeny.