Iron Oxide Copper-Gold DepositsGeology, Space-Time Distribution, and Possible Modes of Origin

2005 ◽  
Author(s):  
Patrick J. Williams ◽  
Mark D. Barton ◽  
David A. Johnson ◽  
Lluís Fontboté ◽  
Antoine de Haller ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Time Distribution ◽  
Space Time ◽  
Gold Deposits ◽  
Copper Gold

Stable isotopes and fluid inclusion constraints on the fluid evolution in the Bacaba and Castanha iron oxide-copper-gold deposits, Carajás Mineral Province, Brazil

2020 ◽  
Vol 126 ◽  
pp. 103738 ◽  
Author(s):  
André Luiz Silva Pestilho ◽  
Lena Virgínia Soares Monteiro ◽  
Gustavo Henrique Coelho de Melo ◽  
Carolina PenteadoNatividade Moreto ◽  
Caetano Juliani ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Iron Oxide ◽  
Fluid Inclusion ◽  
Gold Deposits ◽  
Carajás Mineral Province ◽  
Fluid Evolution ◽  
Copper Gold

Very rapid subsurface hydrothermal ore deposition mechanisms and the origin of breccia-hosted iron-oxide copper–gold deposits

2009 ◽  
Vol 101 (1) ◽  
pp. 76 ◽  
Author(s):  
Nicholas H.S. Oliver ◽  
Michael J. Rubenach ◽  
Jaiby-Ann Jacob ◽  
Brian G. Rusk ◽  
Martina Bertelli ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Gold Deposits ◽  
Copper Gold ◽  
Ore Deposition

scholarly journals Prospectivity analysis of gold and iron oxide copper-gold-(silver) mineralizations from the Faina Greenstone Belt, Brazil, using multiple data sets

2017 ◽  
Vol 47 (4) ◽  
pp. 561-590
Author(s):  
Daniela Schievano de Campos ◽  
Adalene Moreira Silva ◽  
Catarina Laboure Bemfica Toledo ◽  
Marcelo Juliano de Carvalho ◽  
Vinícius Gomes Rodrigues ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Greenstone Belt ◽  
Gold Deposits ◽  
Data Sets ◽  
Multiple Data ◽  
Gold Silver ◽  
Target Sites ◽  
Copper Gold ◽  
Multiple Data Sets ◽  
Fuzzy Logic Technique

ABSTRACT: The Faina Greenstone Belt is located in the southern sector of the Goiás Archean Block and has been investigated since the 18th century because of its gold deposits. Recent studies have revealed the polymetallic potential of the belt, which is indicated by anomalous levels of Ag, Cu, Fe and Co in addition to Mn, Ba, Li, Ni, Cr and Zn. This study was developed based on a detailed analysis of two selected target sites, Cascavel and Tinteiro, and multiple data sets, such as airborne geophysics, geochemistry and geological information. These datasets were used to create a final prospectivity map using the fuzzy logic technique. The gold mineralization of Cascavel target is inserted in an orogenic system and occurs in two overlapping quartz veins systems, called Mestre-Cascavel and Cuca, embedded in quartzite with an average thickness 50 cm and guidance N45º-60ºW/25ºSW with free coarse gold in grains 2-3 mm to 3 cm. The prospectivity map created for this prospect generated four first-order favorable areas for mineralization and new medium-favorability foci. The Tinteiro area, derived from studies conducted by Orinoco do Brasil Mineração Ltda., shows polymetallic mineralization associated with an iron oxide-copper-gold ore deposit (IOCG) system posterior to Cascavel target mineralization. Its prospectivity map generated 19 new target sites with the potential for Au, Cu and Ag mineralization, suggesting new directions for future prospecting programs.

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