Allies Copper Mine - Zambian Copperbelt (sitios de interés)
Descripción del sitio
Other names: Allies 2 - Sisengo - Changwe
The Allies Mine was first worked between 1914 and 1922, when 12 shallow shafts were sunk.Between 1962 and 1965, Charteredex sampled the shafts and returned grades of up to 5.49m averaging 3.23% Cu. Geochemical sampling outlined a north-south, 152m long anomaly >10,000ppm Cu. A 910m long 50ppm to 100ppm Cu anomaly to the north of historical workings was found to be underlain by laterite. Turam, self-potential electrical geophysical and magnetic surveys identified continuous linear targets over 180m in length, with strong anomalies to the north of the workings. Pitting and trenching within laterite over the northern anomaly was unsuccessful due to a shallow water table. A total of 14 diamond drillholes were completed within the main zone and into the northern anomaly, mostly to shallow depth (~100m). The best reported result within the main zone was 6.5m averaging 5.09% Cu, whilst no significant results are reported from the northern anomaly. Underground channel sampling at –60RL returned a best result of 1.52m averaging 8.31% Cu. Chartedex estimated an “indicated reserve” of oxide and sulphide ore, calculated with a 1% Cu cutoff, of 164,000t averaging 3.76% Cu.Recent artisnal activity has resulted in the identification of oxide copper mineralisation within shallow pits up to 200m south of the existing open pit.
AIM-Admission document 2004 (100p)
Mulofwe Project (PL219) Chongwe Copper Belt
Zambezi Resources (ASX:ZRL, LSE:ZRL)
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http://www.zambeziresources.com/index.asp
-15° 15' 44.01", +28° 38' 53.61"