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Geological Overview of the Carajás Mineral Province (Brazil) and its iron oxide-copper-gold mineralization Resumen Geológico de la Provincia Minera de Carajás (Brasil) y su mineralización de tipo óxido de hierro-cobre-oro (documentos disponibles sólo en inglés)
Author: Alberto Lobo-Guerrero S.
Download complete PDF file of abstract here > Download complete PDF file of presentation here > Related documents on A-Type granitoids in the basement to the Zambian Copperbelt > Related documents on Quartz pods and their association with IOCG deposits > Related documents on IOCG mineralization in the Greater Lufilian Arc > Related documents on granitoids in the Greater Lufilian Arc, Zambia > Other downloadable documents related to economic geology > Other downloadable documents related to geochemistry >
OVERVIEW 1. Carajás = large district on a world scale. Its metal production may still grow in number, size & type of deposits. 2. LOGEMIN developed a model to find such districts 3. Main commodities include Fe, Cu, Au, Ni, Mn, PGEs, U, REEs. 4. Main deposit types are IOCG & layered mafic intrusions. 5. Clearly an anorogenic ring complex cluster. 4 distinct overprinted ARCC events: 3 Archean, 1 PaleoProterozoic. Last 3 = mnzd. FeOx mnzn in IOCG origin PaleoProterozoic event. 6. Anorogenic alkali granite, granite & gabbroids are the dominant intrusive rock types (bimodal). 7. Some areas display strong hydrothermal alteration. 8. Granitoids, FeOx bodies & hydrothermal brecciation are common denominators in most IOCG deposits.
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