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Fe-oxide copper and gold deposits (IOCG) and comparison with mineralization at the Kombat deposit in Namibia
Denisová, Nikola ; Zachariáš, Jiří (advisor) ; Pertold, Zdeněk (referee)
The presented bachelor thesis deals with iron oxide copper gold deposits (IOCG) and contains a description of the Kombat deposit in Namibia, as well as a comparison of the deposit with the IOCG deposit type. In the first part of the bachelor thesis, IOCG deposits are described with respects to their geological, mineralogical, geochemical and structural aspects. The results of fluid inclusions and stable isotope (sulfur and oxygen) are described for all IOCG deposit types, together with genetic models. The second part of the bachelor thesis concerns the Kombat deposit in Namibia. The last part of the thesis is the comparison of the Kombat deposit and IOCG deposits. IOCG deposits form a broad group of world-class deposits characterized by economic grades of copper and gold, their main feature is occurrence of both oxidic (magnetite, hematite) and sulfidic (iron and copper sulfides). IOCG deposits form mainly in extensive settings, on cratonic margins, active continental margins and in intracontinental rifts (Groves et al., 2010). Ore bodies are associated with zones of brittle and ductile deformation, various breccia types are common. Zones of sodic-calcic hydrothermal alteration are typical for IOCG deposits and usually have an area of several square kilometers. The Kombat deposit is situated in...
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