- 01Lirios 1: Sb to 25.2%.
- 0254 samples, 4 adits, strong continuity.
- 03CRD near feeders; repeatable horizon.
- 04Maiden JORC MRE this year.
- 05Phase 2 to target high grades.
A technical summary of underground channel sampling and structural mapping across historical mine workings at EV Resources’ (ASX: EVR) Lirios 1 project block has confirmed high-grade mineralisation with grades of up to 25.2% antimony.
A total of 54 systematic channel samples were cut perpendicular to the mineralised faces within four principal underground adit systems at San Rafael, Guadalupana, Linda Vista, and San Pedro to evaluate the continuity, width, and grade of the target horizon.
The work returned best antimony assays of 1.3m at 19.7%, 1.6m at 7.17%, 1.3m at 17.2%, 1m at 13.85%, 1m at 12.75% and 0.9m at 25.2%.
It also confirmed the high-grade continuity of a major strata-bound carbonate replacement deposit (CRD) system at San José that remains open for planned exploration.
Repeatable Target Horizon
The antimony is thought to be consistently hosted beneath a defining stratigraphical capping layer, giving EV Resources a clear and repeatable target horizon.
EV believes channel sampling in shallow fractured ground provides superior sample representativity over standard diamond drilling, with the retention of brittle, high-grade fine material to drilling fluids providing a reliable baseline to support a planned maiden JORC Mineral Resource Estimate (MRE) at Los Lirios.
The results validate the CRD system in proximity to feeder structures, giving the company a structural tool to vector toward the highest-grade zones in upcoming resource drilling.
EV intends to integrate the new results with historical data and ongoing Phase 1 drilling to advance towards a maiden resource estimate at the Los Lirios project before year end.
Advanced Project Understanding
Managing director Mike Brown said the channel sampling results had advanced the company’s understanding of the Los Lirios project.
“These results give us confirmation of the relationship between feeder structures and high-grade antimony, which is consistently hosted within the CRD unit proximal to the structures,” he said.
“Grades of up to 25.2% confirm the quality of this system and just as importantly, we have confirmed structures as a tool to vector towards higher grades as we move to Phase 2 drilling.”
At a time when Western governments and defence industries are scrambling for antimony outside of China, Mr Brown said “every metre” of high-grade continuity confirmed at Los Lirios would strengthen the company’s position to help solve the supply gap.
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