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
The mapping units comprise intercalations of quartzites and phyllites of Traíras Fm.–Araí Group.
The structures comprise two deformational phases, each subdivided in two stages.
The formation of the three different vein types comprises distinct structural mechanisms.
The ore deposition is controlled by structures and chemical interaction with phyllites.
The Buracão area is an orogenic gold occurrence developed during Brasiliano–Pan African Orogeny.