Mtuga Cu Mine (African Eagle - CGA) - Zambian Copperbelt (sitios de interés)
Descripción del sitio
Abandoned Mine
Exploration completed to date:
The original claims for Mkushi were transferred to Falcon Mines (Falcon) in 1926. Falcon carried out a programme of geophysical prospecting, identified a series of anomalies which were subsequently confirmed to be mineralised and reported an “in situ resource” of some 100,000 t at 4.5% Cu. Falcon,however, considered this to be too small and suspended operations.
In 1956, a pilot scale plant was brought in to conduct metallurgical test work. Reportedly, some 2,300 t of copper were recovered from some 70,000 t of ore milled, equating to a recovered grade of 3.5% Cu. Operations were suspended due to low copper prices until 1966, when L.G. Nichols obtained an option over the property. Two additional mineralised zones were located using geophysics and subsequent diamond drilling showed the deposits could be worked profitably by open pit methods.Financial difficulties, however, precluded Nichols from developing the property.
In 1968, Mkushi Copper Mines together with an Italian Mining company, Miniera di Fragne Chialamberto, began open pit mining at Munshiwemba. The pit reached a depth of 30m and yielded 2.2 Mt of ore at 1.0% Cu until operations ceased in 1975.
Work by AER, since it acquired Mkushi in 1998, has included Landsat and aeromagnetic interpretation, soil sampling, rock chip sampling and geological mapping.The soil sampling programme covers most of the licence area. At the Coloquo prospect, the sampling defined a consistent copper anomaly of greater than 100 ppm over 500m long by 130m wide, with some low order zinc anomalism peripheral to the main anomaly. At the Mtugu Prospect, infill soil sampling returned assays up to 305 ppm Cu, 72 ppm Zn and 30 ppm Pb, although no consistent anomalies were defined. Limited rock chip sampling undertaken at both the Mtuga and Coloquo prospects returned values up to 14 g/t Au, and samples of tailings returned values of up to 0.48 g/t Au, indicating a potential coppergold association.
Mkushi Project (PL 114)
African Eagle Resources Plc (AIM:AFE, ALTx:AEA)
http://www.africaneagle.co.uk/
CGA Mining Ltd (TSX:CGA, ASX:CGX)
http://www.africaneagle.co.uk/
CGA Mining Ltd (TSX:CGA, ASX:CGX)
728750mE, 8454750mN
-13° 58' 6.17", +29° 7' 3.07"