Stream sediment geochemistry is a method of regional exploration to screen wide areas, of difficult access or high rainfall marked by significant forestry development. This method, combined with remote sensing, petrographic, analytical studies and field work, has enabled us to highlight areas of metal anomalies in the Kampti-Loropeni greenstone in south-west Burkina Faso. The correlation matrix shows multiple mineral associations: (i) the dominance of gold (Au) and gold-molybdenum (Au-Mo) anomalies in the intrabelt basin along the NNE-SSW fault, (ii) the spatial distribution of strategic metals such as lithium-uranium (Li-U), Ta-Nb-Pb-U along with the granite intrusions and (iii) the base and precious metals such as gold-manganese (Au-Mn), copper (Cu), nickel (Ni), zinc (Zn), cobalt (Co) and titanium-vanadium (TiV) within the volcanic sequence of Kampti affected by both NNE and NNW-SSE faults. Granite emplacement would have controlled the distribution of strategic metals. Such occurrences like Au-Mn, Cu-Ni-Zn, Co and Ti-V anomalies were hosted both by basaltic rocks and mafic intrusions, strongly deformed and hydrothermalised evidenced by the strong veining system (quartz, carbonate), sulphidation and native metal (Au).From geophysics lineaments and trusted in the ground, NNE-SSW and NNW-SSE fault zones were highlighted overprinting regional NE foliation. Three main geological domains are defined: (i) a broader quartz-feldspar rich volcano-sedimentary domain in contact with (ii) an eastern magmatic domain of mafic composition and (iii) a granitoid pluton intrusive in both domains.
Stream sediment, polymetallic occurrences, exploration target, greenstone, Kampti-Loropeni