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The article discusses a study that presented mineralogical and fluid inclusion data for the mineralization and associated gangue phases that proposed a metallogenic model for the formation of the copper-gold deposit of Gaoua, Burkina Faso, and mentions that the age of the mineralizing event was determined by Rhenium-Osmium (Re-Os) dating of sulfides. The study concludes that the that copper and gold ores in the mining district of Gaoua were formed by the formation of copper porphyry deposit.