The Archean BIF-hosted Lamego gold deposit, Rio das Velhas greenstone belt, Quadrilátero Ferrífero: Evidence for Cambrian structural modification of an Archean orogenic gold deposit
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- 作者：Breno de Souza Martinsa ; brenosouzamartins@yahoo.com.br" class="auth_mail" title="E-mail the corresponding author ; Lydia Maria Lobatoa ; Carlos Alberto Rosiè ; rea ; Steffen G. Hagemannb ; Joã ; o Orestes Schneider Santosb ; Fernando Lucas dos Santos Peixoto Villanovac ; Rosaline Cristina Figueiredo e Silvaa ; Lucas Henrique de Á ; vila Lemosc
- 关键词：Lamego deposit ; Lamego BIF ; Rio das Velhas greenstone belt ; Quadrilá ; tero Ferrí ; fero ; Orogenic gold deposit
- 刊名：Ore Geology Reviews
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：72
- 期：part_P1
- 页码：963-988
- 全文大小：8102 K
文摘
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Structural data for the Archean Lamego gold deposit revealing 3 deformational events.
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3D modelling combined with geological map (1:100) in 4 orebodies and 8 mining levels.
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Geometry, hydrothermal alteration and mineralization styles makes Lamego as orogenic.
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U–Pb SHRIMP results shows Archean age for mineralization and late Cambrian imprint.
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N–S structures, dislocate the orebodies belong to the latest Brasiliano cycle.