GEOLOGY



The Miyabi Project covers a discrete zone of Nyanzian greenstones surrounded by granitoids and appears to lie at the hinge of a fold closure between the Nzega Greenstone Belt to the east (hosting Resolute's Golden Pride deposit) and the Siga Hills Greenstone Belt to the northeast (hosting Barrick's Bulyanhulu and Golden Ridge projects and Resolute's Nyakafuru project). Metamorphism of the area is upper greenschist to lower amphibolite facies.

Outcrop is dominated by a range of banded iron formation (BIF) forming the Miyabi Hills at the southern part of the belt, and by granite hills surrounding much of the project area. Much of the prospective greenstone is in low lying areas where the topography is mostly covered by laterite and mbuga clays (black cotton soils).

Gold mineralisation is controlled by strong northeast trending shear zones of the Miyabi Structural Corridor. The geology of the corridor is dominated by a folded mafic volcano-sedimentary package which includes chlorite schists, biotite-sericite schists, graphitic shales, massive pyrite-pyrrhotite bodies and basalts. Weathering occurs to a depth of up to 60m.

All gold mineralisation discovered to date has a close spatial association with the northeast trending faults in the Miyabi Corridor. Silicification and general increases in sericite and biotite alteration are usually associated with the mineralisation. The gold mineralisation is often associated with veins and veinlets that are sub parallel to the main northeast trending structure.

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Regional Geology of the Miyabi Project (From African Eagle, 2009)



Regional Geology of the Miyabi Project (From African Eagle, 2009)