Blackrock Silver Corp. (TSXV: BRC) has drilled high-grade silver and gold intercepts from its DPB in-fill core drilling programme, in addition to notable new intercepts from reverse circulation (RC) drilling in the Victor target and a concurrent step-out campaign at DPB on its 100% controlled Tonopah West project, located in the Walker Lane trend of Western Nevada.
The final assay results have been received from the DPB in-fill drilling programme and are being incorporated into the company’s maiden resource estimate.
In-fill assay results successfully establish continuity of the vein structures and high-grade silver and gold mineralisation of this growing, multi-vein system.
The company is working towards delivery of a maiden resource estimate on the Tonopah West project, with an estimated completion date of the first quarter of 2022.
Highlights:
- Step-out drillhole TW21-109 encountered an up-dip portion of Merten vein system 350 m southwest of the DPB resource area, returning 1.5 m grading 2.0 g/t gold and 298 g/t silver or 498 g/t AgEq. (AgEq_= Ag_g/t + Au_g/t100). The Merten vein system is the largest mineralized feature identified to date. The vein and its accompanying hangingwall and footwall splays have 1.5 kilometres of mineralized strike and over 1,200 m of drill-tested dip potential;
- Step-out drillhole TW21-110 cut two, 1.5 m zones 250 m west of the DPB resource area in the stratigraphic position of the Denver vein. The first intersection returned 2.03 g/t gold and 7.5 g/t silver (210 g/t AgEq), and the second yielded 1.46 g/t gold and 157 g/t silver (303 g/t AgEq). This extends the Denver another 250 m westward making the overall strike of the Denver to be approximately 800 m in length;
- RC drillhole TW21-116 at Victor cut three zones which yielded 1.5 metres grading 1.6 g/t gold and 187 g/t silver (347 g/t AgEq), 1.5 m with 1.49 g/t gold and 144 g/t silver (293 g/t AgEq), and 3.0 m returning 1.16 g/t gold and 176 g/t silver (293 g/t AgEq). The three intercepts are related to the Murray, Merger and OK veins. These veins merge toward the west to become the thick Victor vein, tracked over 480 m; and
- Multiple high-grade intercepts reported over select intervals from the DPB in-fill programme; and
- All assays have now been received from the DBP resource definition programme that consisted of 57,192 m of RC and core drilling within 94 drillholes.
President and CEO, Andrew Pollard, said the maiden resource estimate is on track for the first quarter of 2022.
“With all assays from our initial resource definition programm3 at DPB now in the bag, we’ve successfully demonstrated continuity of consistently high-grade silver and gold mineralisation throughout the 800 m by 800 m resource area, while our step-out programme indicates we’re still just scratching the surface in terms of understanding the true potential of this prolific multi-vein system,” Mr Pollard said.
“As we await completion of our maiden resource estimate, expected this quarter, significant blue-sky has already been well-established as multiple vein systems have been tracked well beyond the confines of the resource envelope.
“By taking some big early swings on our step-out drilling, we’ve been able to successfully refine our model over time and vector in on the high-grade horizons, of which we are now reaping the rewards. Drillhole TW21-110 was a perfect example of this, adding over 250 metres of strike to our Denver vein system by following up on one of our earliest drillholes from 2020 that initially would have appeared to have ‘missed.’
“In addition, drilling from our Victor target continues to establish continuity of mineralisation across multiple veins over 480 m, and with additional drilling completed, and assays pending, this target represents very low-hanging fruit for us in terms of future resource expansion.”
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