Imbo Licence – Prospects/Targets
The Manzako Prospect is situated about two kilometres northeast of, and is sub-parallel to the Kitenge and Senegal Prospects. Manzako is dominated by a sequence of mafic volcanic and pyroclastic rocks, including basalts (locally pillowed), tuffs and some intrusions possibly doleritic hypabyssal sills and/or dykes. These northwest -southeast trending rocks have been metamorphosed to greenschist facies, with chlorite as the dominant metamorphic mineral. Haematite and/or carbonate veining and alteration are present, and preliminary interpretation concludes it is related to low grade gold mineralization. Peripheral to the mineralized zone, the country rocks are usually moderately to strongly foliated and chloritized.
A sub-parallel series of shear zones with steep northeast dips trending between 290° – 110° and 320° – 140° transect the Manzako lithologies over a strike length in excess of 2.2 km. These shear zones are typically characterized by a strong shear foliation grading to mylonitization in the core of the deformation zone. Narrow gold-bearing shear parallel quartz veins are present. Belgian adits and narrow open pits within, and strike parallel to, the parallel to sub-parallel series of shear zones evidences Belgian mining focused on auriferous quartz veins by surface and underground exploitation. The Belgians and recent workings are characterized by multiple parallel to sub-parallel mineralized zones.
In the south-east of the prospect, the mineralized zones are approximately 80 and 150 m apart, whereas in the north-west, on the evidence of the old workings, they appear to be only 20 m apart. Evidence to date indicates that higher gold grades are directly related to the shear zone hosted quartz veins and the greater the proportion of veining, the higher the grade. Quartz vein sulphide mineral assemblage consists primarily of pyrite, pyrrhotite and arsenopyrite as discrete grains or as fine-grained amalgamations.
Belgian workings, were explored by Kilo in 2010 with three diamond drill holes spaced between 320 m to 960 m apart for a cumulative total of 1015.50 m. Drill hole SMDD0001 did not return significant gold values. Gold intersections obtained in the other two holes are presented below.
Trenching and follow-up drilling has returned gold intersections as listed below.
|Manzako Trenching Results|
|SMTR001||Dip 0, Length 19.4 m, Azimuth 230|
|SMTR002||Dip 0, Length 57.10 m, Azimuth 40|
|SMTR003||Dip 0, Length 31.70 m, Azimuth 40|
|SMTR004||Dip 0, Length 38.1 m, Azimuth 40|
|SMTR005||Dip 0, Length 44.50 m, Azimuth 224|
|SMTR006||Dip 0, Length 44.30 m, Azimuth 220|
|0.0||44.30||220||no elevated gold values|
|Manzako Drilling Results|
|SMDD0002||Dip -50.0, length 316.70 m, Azimuth 040|
|SMDD003||Dip -50.0, length 361.8 m, Azimuth 040|
|SMDD0004||Dip -50.0, length 100 m, Azimuth 040|
|SMDD0005||Dip -50.0, length 175.68 m, Azimuth 040|