Avocet Mining PLC Prospectus December 2011

Avocet Mining PLC
West African Projects
Graphitic shears have been mapped striking parallel to the shear zone. These mark the boundary
between ore and waste in the upper benches of the Inata North pit, but dip at a shallower angle to
the west than the shear zone and, therefore, cut across mineralisation.
The project area is extensively weathered with complete oxidation occurring down to depths of
60m, although in zones of fracturing or faulting, the depth of oxidation may be greater. A
transitional zone of weak to moderate oxidation extends down to more than 150m depth.
Weathering has oxidised the carbonaceous shales to a tan colour and concealed the potentially
preg‐robbing character of the carbonaceous host rock.
Widths of mineralisation appear to be consistent between fresh and oxidised zones suggesting little
or no depletion and supergene enrichment.
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