Chalimbana Cu (ZRL Glencore) - Zambian Copperbelt (sitios de interés)

 

Other names: Chongwe East

 

RESOURCE BASE

Historic 7.7Mt at 0.95% Cu

JORC Inferred 5.3Mt at 0.8% Cu

 

 

HISTORY

The first reported exploration at Chalimbana was by Rhodesian Selection Trust (RST) in 1955, when limited diamond drilling is reported. Between 1962 and 1965, RST completed diamond drilling and sampling of shafts (Figure 7) to establish an “indicated reserve” of 7.7Mt averaging 0.95% Cu, with a best intersection of 74.98m averaging 1.63% Cu.
Between 1970 and 1975, a winze was excavated to 67m vertical depth from which four horizontal diamond holes were drilled. Samples from the winze excavation and drilling were sent to Roan Consolidated Mines Research and Development Department for flotation and recovery test work.Results indicated that concentrates in excess of 25% Cu and generally containing 20% insoluble compounds, could be achieved with copper recovery greater than 90% or better. A feasibility study was completed, estimating “reserves” of sulphide mineralisation at 3.74Mt averaging 0.89% Cu,however the “computer” based estimation was subject to a number of uncertainties. No further work is documented.
http://www.zambeziresources.com/_content/documents/510.pdf

 

Chalimbana Deposit