Uranium Deposit Report
Deposit : |
Kalongwe |
Country : |
Democratic Rep. of the Congo |
General Information |
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Geological District |
Shaba | ||
Geological Region |
Katanga | ||
Political/Geographical Province |
Katanga/Shaba | ||
Last Data Update |
2009-01-01 | ||
Owner(s) |
100%, Arafura Resources NL | ||
Operator |
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Technical Information |
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Tonnage Range (t U)
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< 500 | ||
Grade Range (% U)
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0.10 - 0.20 | ||
Deposit Status
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Dormant | ||
Current Processing Plant
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Cumulative Production (t U)
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Production Period
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Produced Grade (% U)
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General Remarks |
Kalongwe is located 40 km SW of Kolwezi and 145 km west of Shinkolobwe. It is a Cu-Co deposit discovered in 1902. Uranium was noticed in 1931. Mineralisation was drill investigated up to a depth of 60m were it is still open and underground working took place up to a depth of 42m. A small exploration pit was dug. | ||
Geological Information |
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Deposit Type |
Vein | ||
Geological Setting |
As for the Shinkolobwe, the deposit is in the median part of the Katanga synclinorium, an arcuate fold belt ca. 3OO km long extending from Zambia into Zaire. Regional stratigraphic units are the Kibara Group (Precambrian III) overlain by the Upper Proterozoic Katanga Group (Precambrian IV). The sediments were deposited 1300 to 620 My ago, and folded and faulted during three phases of the Lufillian Orogeny dated at 840 to 710 and 670 to 620 My. The Katanga Group includes in descending order, the Kundelungu, Grand Conglomerate Shale-Dolomite (Roan Group) Systems. The latter includes Mwashya Series and the ore hosting Mine Series (Série des Mines), 600 to 1000m thick. Mineralisation is mainly located in a fault zone crosscutting a wedge of the Mines Series. | ||
Age of Mineralization |
Probably the same age as for Shinkolobwe (620 My) | ||
Mineralization |
Irregular veins along fault zones. Mineralisations are preferentially located along fault AB for about 30m. Uraninite, black friable oxides and secondary minerals (vandenbrandeite, cuproklodowskite, uranophane, torbernite) | ||
MetallogenicAspects |
Minerals associated to uranium : pyrite, carrollite, chalcopyrite, chalcosine, digenite, covelleine, chlorite, quartz, dolomite, chrysocolle, malachite, black Co oxides. The deposit is characterised by the presence of Cu and the absence of Ni. | ||
Age of Mineralization |
Probably the same age as for Shinkolobwe (620 My) | ||
DepositShape |
Irregular steeply dipping large vein | ||
DepositDimensions |
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GeologicalRemarks |
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Metallogenic Aspects |
Minerals associated to uranium : pyrite, carrollite, chalcopyrite, chalcosine, digenite, covelleine, chlorite, quartz, dolomite, chrysocolle, malachite, black Co oxides. The deposit is characterised by the presence of Cu and the absence of Ni. | ||