Kileba
The Kileba deposit is located seven kilometres southeast of Kipoi Central.
To date the Company has completed 37 diamond holes at Kileba for 6,849m as part of a resource definition programme over a strike of 550m, with more than 800m of mineralised strike yet to be drilled out.
Higher grade intersections include 32.5m @ 1.7% Cu, 44m @ 1.7% Cu, 131.5m @ 2.2% Cu, 75.0m @ 1.7% Cu and 35.0m @ 3.7% Cu, 48.5 @ 2.7% Cu, 35.3m @ 2.5% Cu, 70.5m @ 1.7% Cu, 46.9m @ 1.7% Cu and 34.0m @ 3.0% Cu.
Mineralisation at Kileba is hosted in a sequence of folded sedimentary and volcanic rocks of the Upper Roan Group (R4.1&2, Mwashia Group) which form a part of the southwest-dipping limb of a regional, northwest-striking syncline. Copper occurs as predominantly copper oxide minerals (malachite and azurite) above the base of oxidation and mainly as chalcopyrite below.
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The mineralisation appears to be laterally dispersed above the base of oxidation, forming a broad zone of supergene mineralisation that outcrops at surface. Near and below the base of oxidation the primary mineralisation is confined to multiple southwest steeply dipping zones of intense shearing and deformation which varies in true thickness along strike from 10 to 25m.
In April 2009 Maiden Inferred Mineral Resource estimates were completed for the Kipoi North and the Kileba South deposits which form part of the Kipoi Project.
Both deposits are located within the boundaries of the Kipoi Project area which contains a 12 km sequence of mineralised Roan sediments that also hosts the Company’s flagship Kipoi Central deposit.
The mineral resource estimates were based on the results of the extensive diamond and RC resource drilling undertaken on both deposits during 2008. Further potential exists at Kipoi North and Kileba for lateral oxide extensions and the deposits are open at depth with substantial scope for expansion of sulphide resources.
Both resource estimates at Kipoi North and Kileba South represent predominantly oxide mineralisation which should be amenable to treatment in an SXEW operation.
Kipoi North and Kileba South are in close trucking proximity to Kipoi Central offering synergies and efficiencies for future mining operation.
Mineral Resource Estimate for Kileba South
The Mineral Resource estimate for Kileba South was prepared by CSA Global Pty Ltd. The resource was calculated in accordance with JORC standards and is classified as an Inferred Mineral Resource.
Table: Kileba South deposit – maiden Resource Estimate
|
Category |
Tonnes (000’t) |
Cu % |
Cu Metal (000’t) |
|
Oxide |
7,760 |
1.35 |
105 |
|
Fresh |
1,740 |
1.64 |
29 |
|
Total |
9,500 |
1.40 |
133 |