Lac Gold's latest drilling at the Astoria deposit within the Rouyn Gold Project reveals more extensive and continuous high-grade gold mineralisation, validating geological models and setting the stage for resource expansion.
- High-grade gold zones more continuous than expected
- Drillhole AS-26-798 validates geological interpretation
- Majority of assay results still pending
- Phase 2 drilling underway targeting resource growth
- Current resource stands at 1.66 million ounces
Drilling Confirms Continuity of High-Grade Gold
Lac Gold Limited (ASX:LAC) has delivered a fresh wave of optimism for its Rouyn Gold Project in Québec, Canada, with drilling results that suggest the Astoria deposit hosts a more continuous and extensive high-grade gold system than previously modelled. The latest assays highlight broad mineralised envelopes peppered with higher-grade shoots, reinforcing the company’s strategy to grow its existing 1.66 million ounce resource.
Drillhole AS-26-798 stands out, intersecting mineralisation from an opposite angle to earlier holes and confirming the geometry and continuity of the gold system. This alternative perspective adds a new layer of confidence to Lac Gold’s geological interpretation, an important validation as the company refines its exploration model.
Outstanding Intersections Point to Resource Upside
Key intercepts include 12.55 metres at 5.58 g/t gold from hole AS-26-795, featuring a blistering 0.40 metres at 74.7 g/t, and a lengthy 64.5 metres at 2.96 g/t from AS-26-798, with multiple high-grade sub-intervals. These results underscore the presence of structurally controlled high-grade shoots within broader hydrothermal alteration zones, typical of orogenic gold systems in prolific regions like the Abitibi greenstone belt.
With only about 40% of assay results returned so far, the majority of data remains outstanding, leaving significant scope for further resource growth. Phase 2 drilling is already underway, targeting extensions along strike and down-plunge between 400 and 1,000 metres depth, aiming to connect and expand known mineralisation.
Geological Model Underpins Growth Strategy
The evolving geological model depicts a large structurally controlled gold system along the Cadillac-Larder Lake Break, where broad alteration envelopes host higher-grade shoots concentrated in brittle structural zones. This model not only explains the distribution of mineralisation but also guides future drill targeting, enhancing the potential to add ounces efficiently.
Andrew Stocks, Managing Director, emphasised that these results improve understanding of the deposit’s architecture and validate the company’s approach, stating that the program is “still only beginning to understand the broader scale and resource growth potential of the Rouyn Gold Project.”
Resource Base and Next Steps
The Rouyn Gold Project’s current Mineral Resource Estimate stands at 1.66 million ounces at an average grade of 3.28 g/t gold, classified under JORC 2012 standards. This resource is split between indicated and inferred categories, with ultramafic and argillite host rocks.
Lac Gold plans to incorporate the remaining Phase 1 assay results into its geological model while advancing a 15,000-metre Phase 2 drilling campaign. This next phase aims to further refine geological understanding, test extensions to known zones, and evaluate new targets for potential resource expansion.
The company’s disciplined approach, backed by robust QAQC protocols and independent geological oversight, positions it well to unlock additional value from one of Canada’s most prolific gold regions.
Bottom Line?
With most assay results still pending and Phase 2 drilling underway, Lac Gold’s evolving geological model at Rouyn could unlock significant resource growth if continuity of high-grade shoots persists.
Questions in the middle?
- How will pending assay results alter the current resource model?
- Can the continuity of high-grade shoots be maintained at greater depths?
- What impact will Phase 2 drilling have on the overall project economics?