THE DRILL SERGEANT: Blackham Resources (ASX: BLK) released results from a recent free milling drill program undertaken at the company’s Wiluna-Matilda gold operation in Western Australia.
Blackham Resources said the drilling had extended shallow oxide and transitional mineralisation close to the Wiluna CIL plant.
Results include broad zones of shallow high-grade mineralisation intersected surrounding the modelled East-West pit cutback, in Blackham’s newly discovered cross structure zones that were not mined by previous operators.
Better intercepts include:
20 metres at 4.84 grams per tonne gold from 5m, including 9m at 8.76g/t gold;
19m at 3.52g/t gold from 3m incl. 1m at 5.27g/t gold and 3m at 5.62g/t gold and 2m at 10.63g/t gold;
22m at 2.97g/t gold from 11m, including 7m at 5.90g/t gold;
14m at 4.23g/t gold from 16m, including 7m at 7.66g/t gold;
22m at 2.38g/t gold from 3m, including 1m at 7.10g/t gold and 1m at 7.76g/t gold and 1m at 6.48g/t gold;
13m at 3.58g/t gold from 48m, including 3m at 5.30g/t gold;
15m at 2.70g/t gold from 32m, including 1m at 5.89g/t gold and 1m at 6.95g/t gold; and
19m at 2.00g/t gold from 40m;
Infill drilling at the Happy Jack pit has delivered further high-grade oxide and transitional intersections and enhanced confidence in the resource model interpretation.
The potential for increased sulphide resources was also highlighted by several holes that extended into the deeper fresh rock.
Better results include:
19m at 6.36g/t gold from 35m;
7m at 7.62g/t gold from 35m and 9m at 1.99g/t gold from 111m;
8m at 4.65g/t gold from 112m and 10m at 7.93g/t gold from 136m;
12m at 2.29g/t gold from 122m, 3m at 4.97g/t gold from 138m and 9m at 6.83g/t gold from 147m; and
8m at 2.30g/t gold from 2m, 23m at 1.59g/t gold from 18m and 20m at 8.70g/t gold from 72m.
Drilling was also completed around the Adelaide, Moonlight, Essex and Bulletin pits with moderate tenor results received.
Cutbacks on these pits also appear viable and are being assessed for future mining.
Best results were:
6m at 3.81g/t gold from 103m, including and 13m at 1.95g/t gold from 127m; and
11m at 2.23g/t gold from 19m.
“Further drilling is planned to close out open-pit mineralisation ahead of finalising mine designs for the free milling starter pits,” Blackham Resources said in its ASX announcement.
“Blackham’s next resources and reserves update will incorporate these results and is expected to be completed in the September ’18 quarter.
“Blackham management are currently fast-tracking pit designs and approvals to mine the high-grade East West Cross Structures and Golden Age North pits in the December’18 quarter.”