EV Resources (ASX:EVR) has defined a laterally extensive, shallow carbonate replacement-style antimony system at its Los Lirios Project.
Recent drilling at the Lirios 1 prospect has confirmed a consistent silicified limestone unit, interpreted as a primary mineralisation horizon, in 10 of 11 initial drill holes.
The target unit, which remains open in most directions, appears as a gently folded body with a thickness ranging between 1m and 2.25m.
A 200-metre step-out hole to the south-west has intercepted the same unit, extending the interpreted strike and reinforcing the scale potential within the 6km Lirios Fault Zone corridor.
Vertical and low-angle structures served as conduits for mineralising fluids, which then spread laterally beneath a gypsum cap.
The geological setting is a hallmark of carbonate replacement deposits—the world’s largest class of antimony mineralisation.
CEO Mike Brown noted that these systems offer far greater scale than traditional epithermal veins, providing a clear path towards a maiden JORC-compliant mineral resource estimate.
While awaiting assay results from the current campaign, the company is encouraged by previous channel samples that returned grades as high as 30.2% antimony.
The project is located just 50km from the company’s Tecomatlán processing plant, which is currently undergoing electrical and mechanical upgrades to establish a low-capital-expenditure route to future production.
Exploration now shifts to Phase 1 drilling at the Hormiguero and Lirios 2 targets.
At the time of reporting, EV Resources’ share price was $0.090.