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EV Resources (ASX:EVR) has this week completed and interpreted a 2D inversion model from a Controlled Source Audio-frequency Magneto-Telluric (CSAMT) ground geophysical survey at Lirios 1 at its flagship Los Lirios Antimony Project in Oaxaca, revealing “significant scale potential and new targets.”
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This CY26 survey has expanded the recognised scale potential of the mineralised hydrothermal system, which extends beyond the boundaries of first-phase drilling, and has delineated two high-priority anomalies.
There were three key things picked up through the study, which were collected by Zonge International and interpreted by SouthernRock Geophysics.
Firstly, EVR spotted a central low-resistivity anomaly, which lies immediately east of the shallow Phase 1 drilling cluster. This distinct, deep-rooting sub-vertical anomaly extends at depth and remains open to the north – and it has been interpreted as a primary structural conduit for mineralising fluids.
Secondly, there’s a large southeast conductor anomaly uncovered. This is ~500 metres southeast of current drilling and was delineated across all five survey lines.
And, finally, the CSAMT survey mapped several sub-parallel vertical faults and lineaments bounding the low-resistivity zones; this critical structure network runs parallel to the known San Elias and San Miguel feeder structures.
These findings directly influence EV Resources’ near-term exploration strategy. On-ground field verification is currently underway to correlate the geophysical data with surface geology and geochemistry.
“The results… represent a highly encouraging step forward for the scale potential of Los Lirios antimony project,” EVR CEO Mike Brown said. “By successfully mapping a robust network of vertical fault structures, we now possess a critical vectoring tool to target high-grade zones within this CRD system.”
He admitted the data has delivered “more than what we’d hoped for,” especially regarding the potential sub-vertical connected sulphide feeder zone, and the massive, coherent, and open anomaly to the southeast.
The data will now feed into the planning phase for a second-phase diamond drilling program across Los Lirios 1, Los Lirios 2, and Hormiguero.
“Our strategy is clear and aggressive: Test these highly prospective corridors, where hydrothermal fluids interaction with the receptive tabular limestone unit is optimised, expand the mineralisation footprint, test the sulphide anomalies, and accelerate to a maiden estimate,” Mr Brown said.
Beyond that, EVR also intends to complete another CSAMT interpretation of the Lirios 2 area and review all geological and geophysical data to establish an official Exploration Target for antimony in Oaxaca.
EVR has been selling at ~0.7cps today.
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Disclaimer: This content has been prepared as part of a partnership with EV Resources Ltd and is intended for informational purposes only.
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