A geological framework for the Kiaka gold deposit is proposed for the first time. A U-Pb dating on zircon from a diorite intrusion gave a magmatic age of 2140 ± 7 Ma. Two stages of hydrothermal alteration and mineralization are recognized. D2-related shear zones control high-grade gold mineralization. A Re-Os dating on pyrrhotite (early-stage) gave an age of 2157 ± 24 Ma.