EV Resources Reveals New Targets and Increased Scale Potential at Los Lirios with CSAMT Survey

EV Resources (ASX: EVR) has completed the interpretation of a 2D inversion model from a controlled source audio-frequency magnetotelluric (CSAMT) ground geophysical survey at the Lirios 1 prospect within its Los Lirios antimony project in Mexico.

The survey mapped subsurface conductivity changes across a 500 metre vertical window in an effort to identify potentially-hidden zones of sulphide accumulation or feeder structures and establish a potential geophysical fingerprint for mineralisation.

It returned three compelling targets for follow-up exploration including a potential sulphide feeder zone at depth and adjacent to existing drilling.

A massive untested and open anomaly to the southeast and a project-wide structural network are expected to play a critical role in controlling mineralisation.

Sulphide-Enriched Zones

Based on the very high resistivity (low conductivity) of limestone and gypsum country rock, the two low-resistivity anomalies have been interpreted as potential sulphide-enriched units, zones or structures.

The results demonstrate that the mineralised system remains open and possesses scale potential significantly larger than previously recognised, helping fast-track EV Resources’ exploration strategy to a maiden mineral resource estimate (MRE) in a highly favourable global antimony market.

The CSAMT survey delineated a network of sub-parallel vertical features and lineaments bounding the low-resistivity target zones and parallel to the known San Elias and San Miguel feeder structures, providing EV Resources with high-potential targeting vectors for drilling of areas where the structures intersect the receptive limestone unit.

Delineating the fault network will allow the company to accurately predict where hydrothermal fluid interaction has been the highest, providing a potential roadmap for localised high-grade zones.

‘Critical Vectoring Tool’

Managing director Mike Brown said the survey had delivered more than EV had hoped for.

“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 said.

“These results will feed directly into the planning phase for an aggressive Phase 2 drill program to test the highly-prospective structural corridors where hydrothermal fluids interaction with the receptive tabular limestone unit is optimised; expand the mineralised footprint by testing the potential sulphide anomalies; and accelerate towards a maiden MRE.”

The results will feed directly into planning for the company’s Phase 2 drill program.

“Our strategy here is clear and aggressive: test these highly prospective structural corridors, where hydrothermal fluids interaction with the receptive tabular limestone unit is optimised, expand the mineralisation footprint testing the potential sulphide anomalies, and accelerate towards a maiden JORC MRE," Mr Brown added.