Blackham Resources Ltd (ASX:BLK) has received high-grade gold results in reserve extensional drilling at Golden Age underground mine near Wiluna in Western Australias Mid-West.
Results are from a further 15 holes for 1,201 metres drilled at underground mine extension targets.
The drilling is aimed at extending and improving high-grade free-milling mine life and improving transitional cashflows for the next 12-18 months.
Intersections demonstrate the continuity of high-grade mineralisation above the upper-most mine levels with better results including:
- 2.7 metres at 4.02 g/t gold from 30.7 metres, including 0.3 metres at 13.4 g/t and 0.7 metres at 6.71 g/t;
- 6.6 metres at 8.24 g/t from 46.6 metres, including 0.6 metres at 82.2 g/t;
- 10.6 metres at 3.45 g/t from 62.1 metres, including 5.2 metres at 5.45 g/t and 3.8 metres at 8.14 g/t from 88.1 metres; and
- 7.1 metres at 6.31 g/t from 65.7 metres.
“Excellent results”[hhmc]
Executive chairman Milan Jerkovic said: “These excellent results further demonstrate the continuity of high-grade Golden Age mineralisation, both above the upper-most mine levels and at depth.
“The lower extensions build on pre-Blackman drilling showing high-grade mineralisation remains open for a considerable distance below the current mining level.
“This is particularly supportive of an extension to mine life at Golden Age and thus, sustained production of high grade, free-milling ore.
“Together the results progress our strategy of ensuring solid transitional cashflow as we pursue our staged Sulphide Expansion Plan which aims to see underground production ramp-up to 100,000-120,000 ounces per annum by FY 2021.”
Golden Age is a high-grade narrow-vein quartz reef deposit that provides supplementary high-grade mill feed along with baseload feed from the companys open pit mines.
Golden Age Lower extensions[hhmc]
Blackham is also mining Golden Age Lower mineralisation on the 800 level, with drilling of the 775 level aimed at extending the mine further at depth.
Pre-Blackham drilling intersections between the 600 and 700 levels show that high-grade Golden Age reef mineralisation remains open for a considerable distance below the current workings.
This zone is the target of further drilling that began in late March with the arrival of a second rig to drill between the 775 and 650 levels, with results expected over the coming weeks.
Results from the 775 level drilling demonstrate the continuity of high-grade mineralisation at depth:
- 0.9 metres at 34.2 g/t from 29.4 metres;
- 2.7 metres at 5.1 g/t from 32.1 metres;
- 2.7 metres at 10.07 g/t from 46.5 metres;
- 1.6 metres at 5.48 g/t from 43.8 metres; and
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