Resource and Reserve Expansion
Nevsun is aggressively growing its resource base in and around the Bisha Project. In 2011, Nevsun completed three major drilling programs (34,000m) to expand resources and reserves:
- Bisha Mine resource infill
- Hanging Wall Copper Zone definition and infill drilling
- Harena resource drilling
The results from these three programs will be included in a resource and reserve restatement to be released before mid-Q3 2012.
The Bisha Mine resources includes 10.3 million tonnes of inferred material grading 0.9% copper and 5.8% zinc that was infill drilled in 2011. The Bisha Mine deposit remains open at depth with the deepest drill intersection to date intercepting 128m of 8.4% zinc and 0.96% copper extending to approximately 375m vertical depth, below the current open pit bottom of 260m.
The Hanging Wall Copper Zone is a near surface copper mineralization adjacent to the Bisha Mine pit. The mineralization was drilled in two phases, definition and infill, in 2011 with one zone at 8.5% copper.
In addition, one of two known satellite deposits, Harena, located approximately 9.5 km along strike, was drilled in 2011.
The Northwest Zone, located approximately 1.5 km northwest of the Bisha Mine pit, is currently being infill drilled. The drill data from this area will not be included in the resource and reserve restatement.
For further details on Bisha's resource, please view its NI 43-101 Compliant Mineral Resource Estimate.