Origin of material: This material was provided by Mt Burgess Mining (NL) from their Kihabe Base Metals Project is located on the border of Botswana and Namibia about 700km north-west of the capital, Gaborone, in Ngamiland. The Project is 350km by road from Maun and 50km from Tsumkwe, Namibia. The target is within a Proterozoic belt of metasedimentary rocks, with around one third of the prospective geology occurring in Botswana (PL 69/2003, area ~1,000km²) and two thirds in Namibia.
The belt of Proterozoic sedimentary rocks, composed primarily of carbonate and siliclastic rocks, form a trapezoidal wedge of tightly to isoclinally folded metamorphosed sediments of the Damaran Supergroup, bounded by granites and gneisses of the Quangwadum Complex and Kihabe Complex. The target mineralisation is primarily stratiform to stratabound sedimentary exhalative (SEDEX) sulphides occurring at a known stratigraphic level within the basin. The Company’s geological model is that the Belt represents a re-closed rift basin with a fill of arkose, greywacke, quartzites and sabkha-facies stromatolitic dolomites. Mineralisation occurs between dolomite and quartzite for a combined strike length of 450km, within Namibia and Botswana.
The Kihabe Resource is located along a contact between the dolomite footwall and a sequence of rhythmically bedded sandstones, which have been folded and metamorphosed to, respectively, dolomitic marble and chloritic quartzite. The local geology of the deposit is known to be a west-plunging syncline. Mineralisation is developed within the host quartzite within thick, coarse grained beds, and weakens upwards in the stratigraphy as the grain size reduces. Mineralisation forms a series of overlapping stacked horizons controlled by the beds within the quartzite.
Normal 0 false false false EN-US X-NONE X-NONE Recommended Concentrations and two “Between Laboratory” Standard Deviations
Certified Concentrations
Zn M/ICP
5174
±
540
ppm
Zn XRF
5321
±
294
ppm
Pb M/ICP
1963
±
202
ppm
Pb XRF
1945
±
76
ppm
Cu XRF
70
±
10
ppm
Specific Gravity
2.79
±
0.06
Provisional Concentrations
Zn P
4959
±
662
ppm
Pb P
1941
±
250
ppm
Cu M/ICP
65.5
±
8.1
ppm
Cu P
63.8
±
6.9
ppm
Ag M/ICP
5.2
±
0.66
ppm
Additional information
Weight
0.01 kg
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