Geology

Tres Cerros is underlain by Tertiary-age volcanic rocks (rhyolite-andesite flows of the Calipuy Formation) that abut older Cretaceous sandstone units (Chimu Formation). Intense hydrothermal alteration (advanced argillic with silica-clay overprint) extends along a ~2.5 km by 0.5 km trend. Surface mapping and sampling reveal brecciation and quartz-sulfide veining, typical of high-sulfidation epithermal systems.

Structural controls include a north-south fault corridor intersecting east-west fractures, forming breccia zones and stockwork veining. High-grade gold-silver mineralization aligns with these structures. The system is enriched in arsenic, antimony, lead, and mercury. Copper values of 0.3–0.6% and elevated tungsten suggest porphyry/skarn potential.

A strong IP anomaly beneath the southern zone (600 x 500 m) indicates a potential sulphide-rich feeder system at depth.