Kabba Bunu Project

The Kabba Bunu Project

The  Kabba Bunu licensed site  is a short distance from the capital of Nigeria and measures approximately 80 km² and is leased for 99 years from the local community. The area was identified by Russian geological surveys in the mid-1970s to have high potential for gold mineralization. Initial exploration results found 93% gold content and also contains elevated contents of Silver, Copper, Molybdenum, Wolframite and Lead/Zinc. The area has been historically impacted by significant displacement as a result of a rock-mass movement which typically results in the geomorphology of substantial mineralization. Further geological investigations will be required to ground truth this. Seven potentially mineralized bodies (quartz reef formations) identified within the area, with one body dimensioning 4.5km on strike mineralization with a width that varies between 200-900m, covering an area of 3.5 km2. Gold-bearing sand confined to the alluvial deposits in the central parts of the licensed area was identified. Alluvial deposits containing an estimated 1,000kg Au identified (35,000 ounces @ average 0.5g/t).

Project Review of Kabba Bunu

The main focus of the EMI 2009 exploration work was to assess the concession area’s potential for holding economic placer gold deposits, whilst bearing in mind the potential for locating primary sources and other deposits of economic metals and minerals. The main work conducted comprised an assessment of alluvial sources of gold in river terrace and stream channels whilst building an understanding of the geology of the area through the collection and analysis of a representative suite of hard-rock samples, geological observations, geochemical sampling, magnetic surveying and localized geological mapping. Placer exploration works involved a large number of pan concentrate and dry washer concentrate samples gathered from active stream channel traverses, and from pits and short levels driven into the alluvial terraces. A spectrometer was utilized in the field and with selected samples being returned to Ukraine for laboratory analysis. A total of 303km of prospecting traverses were completed; 124 km followed stream and river beds, whilst 179km of traverse were routed between watersheds.
A ground magnetic survey was conducted over the entire concession area (100km2) on a 200m by 25m grid, and over areas considered anomalous and prospective for primary gold, on a grid of 25m by 5m (3km2). Sampling consisted of 731 panned concentrate samples derived from alluvial sediments, 103 rock-chip samples were taken for the purposes of petrographic identification, 328 rock chip samples were taken for geochemical analysis and 42 channel samples were taken. The quality control and analytical measures employed are considered adequate for this stage of prospecting, however, these will need to be substantially upgraded for future programs. Smaller scale exploration works have since continued till 2017.

Scope of exploration executed

The field works were performed in pursuance to the Program for conducting loose gold exploration and evaluation operations within the borders of Kabba-Bunu site. Upon processing the preliminary geological and geophysical data it became necessary to specify types and scopes of field works. This procedure was promptly implemented; the modifications applied were reasonable and considerably improved the authenticity and quality of the operations being performed.