Bamba-Kilenda deposit is located 70 km (as the crow flies) south of Kinshasa. The studies of Verhaegen (2005) based on fluid inclusions made it possible to highlight two spatially and temporally distinct episodes of mineralization. The decrepitation technology used by Verhaegen (2005) remains imprecise. For this, Fe-Ti, Ca-Ti and Fe-Ca geothermometry and the alkalinity index evaluation (K+Na/Ca) proposed Intiomale (2013 and 2014) uses those as part of this study. The staging of mineral concentrations reflects the installation in the FK2/4a drilling of the Bamba-Kilenda deposit, from bottom to top: 1) Phase of sedimentary ores (Phase 1), the pyrite sheath spared by oxidation and impurities provides information on an alkanity index of 0.21 typical of fluids of sedimentary origin; 2) Installation phase by orogenic fluids (Phase 2) of the Mississippi Valley (MVT) type, with alkalinity varying between 3.5 – 6.5 and temperatures 56 – 70°C; 3) Installation phase by metamorphic fluids (Phase 3), rich in copper and zinc, at a temperature of 400°C. The Bamba-Kilenda FK2/4a drilling did not intersect veins of Qtz-Cu-Fe coming from thermal reflux fluids (THERMOREF: Phase 4), the ores formed between 455 - 475°C ores and no longer the ores linked to N-S rift faults (POST-RIFT: Phase 5) observed at Nsienene Wogila and Mbusu, observed in the foreland of the West Congo Belt. Finally, meteoric fluids (Phase 6) infiltrated into the fault zone reworked and oxidized the ores observed in the Bamba-Kilenda FK2/4a borehole.