Maritana Minerals has delivered further high-grade gold intercepts from its Burbanks project in WA, reinforcing geological confidence and setting the stage for a June Mineral Resource update.
- Phase 1 diamond drilling completed with 53 holes totaling 15,798m
- High-grade intercepts include 4.20m at 42.43g/t Au and 1.37m at 126.93g/t Au
- Updated Mineral Resource Estimate due in June 2026 quarter
- Historical production of 324koz at 22.7g/t Au complements current 466koz resource
- Results support Burbanks as feed source for Black Swan Processing Hub
Phase 1 Drilling Confirms High-Grade Continuity
Maritana Minerals Limited (ASX:MRT) has wrapped up its Phase 1 diamond drilling program at the 100% owned Burbanks Gold Project near Coolgardie, Western Australia, delivering a string of high-grade gold intercepts that bolster confidence in the deposit’s continuity. The 53-hole campaign, spanning 15,798 metres, focused on infill and extensional drilling at Burbanks North and tested southern shallow mineralisation.
Standout results include a 4.20-metre intercept grading 42.43 grams per tonne (g/t) gold from 289.63 metres, featuring a blistering 1.37 metres at 126.93 g/t Au, alongside other notable hits such as 0.30 metres at 54.02 g/t Au and 0.63 metres at 24.32 g/t Au. These assays, primarily from hole 26HBBD044, highlight visible gold within quartz veins in the Burbanks shear zone, a key structural host for mineralisation.
Resource Upgrade on the Horizon
The drilling outcomes are feeding directly into an updated Mineral Resource Estimate (MRE) scheduled for completion in the June 2026 quarter. The current JORC-compliant resource stands at 6.1 million tonnes grading 2.4 g/t Au for 466,000 ounces, supplemented by historical underground production of 324,000 ounces at a remarkable 22.7 g/t Au grade. Maritana is advancing studies to upgrade resource classifications from Inferred to Indicated, a critical step towards defining Ore Reserves.
Managing Director Grant Haywood emphasised the program’s role in de-risking the project: "The ongoing success of the drilling program continues to demonstrate consistent high-grade mineralisation and improved geological confidence, underpinning Burbanks as a reliable feed source for our Black Swan Processing Hub." This aligns with the company’s broader strategy to consolidate high-grade feedstocks for its processing infrastructure near Kalgoorlie.
Strategic Positioning in Western Australian Goldfields
Burbanks sits within a well-established mining lease (M15/161) in the prolific Western Australian Goldfields, benefiting from existing infrastructure including grid power and sealed roads. The deposit features steeply dipping quartz veins with associated sulphides and alteration minerals, consistent with high-grade shear-hosted gold systems.
The drilling was carefully oriented to intersect mineralisation perpendicular to strike, though some intercepts are oblique due to vertical orebody geometry and site access constraints. All reported intercepts are downhole lengths, with true widths to be confirmed during resource modelling.
Maritana’s approach follows a recent capital injection and resource expansion at its Black Swan project, positioning the company as a growing player in the region. The drilling success at Burbanks complements the company’s $175M capital raise and resource boost announced just days earlier, underscoring a concerted push to advance its WA gold assets.
Next Steps and Market Implications
With assays pending for a handful of holes, Maritana will continue to update the market as results come in. The imminent MRE update will be closely watched for changes in resource size and confidence levels, which will inform subsequent Ore Reserve studies and potential mine planning.
While the drilling results are promising, the company cautions that the scoping studies underpinning current life-of-mine plans remain preliminary, incorporating Indicated and Inferred resources with inherent uncertainties. Investors should note that true widths of mineralisation are yet to be determined, and forward-looking statements are subject to typical mining and market risks.
Bottom Line?
Maritana’s latest high-grade drilling at Burbanks sharpens the project’s profile ahead of a key resource update, though full orebody confidence and economic studies remain works in progress.
Questions in the middle?
- Will the June resource update translate high-grade intercepts into a meaningful resource increase?
- How will upgraded resource confidence affect the timing and scale of potential mining at Burbanks?
- What impact will these results have on feedstock supply and economics for the Black Swan Processing Hub?