Tinka Resources (TSX-V:TK) expects to start a new magnetotellurics (MT) ground geophysical survey within days at both its Ayawilca zinc-silver-tin and Silvia copper-gold projects in Central Peru.
The survey will cover a 4km2 area and target several copper-gold skarn and porphyry targets at the Silvia project’s north western area. This includes Area A, where four holes were drilled in the fourth quarter of 2025, and Areas B and C, which have not previously been drilled.
The MT survey is designed to highlight deep conductive zones caused by sulphides associated with copper-gold skarn and/or porphyry mineralisation. The survey is expected to be completed in early July.
Initial drill holes at Silvia northwest in the fourth quarter of 2025 intersected encouraging skarn-hosted copper-gold mineralisation, including 15.1m @ 0.17% of copper and 0.26 grams per tonne of gold from 18.5m depth in S25-001.
The holes also returned 23.2m @ 0.20% of copper and 0.05 g/t of gold from 231.8m depth in S25-004.
Tinka also recently completed a revised interpretation of geological and structural controls within the main zones at the Ayawilca zinc-silver project.
Several ‘high-grade’ silver veins have been identified from drill hole intercepts, and veins that were not included in the 2024 mineral resource estimation have been added to three dimensional geological modelling.
“Recent desktop remodelling of the Ayawilca deposit has significantly improved the understanding of the structural controls to the high-grade mineralisation,” President and CEO Dr Graham Carman says.
“We have incorporated six silver-rich veins at West Ayawilca into the 3D geological model, and been able to follow-up and sample some of these high-grade silver structures at surface.
“The Silver Zone veins have not been significantly drilled and remain a high priority exploration target.
“Meanwhile, the Colquipucro area is a compelling silver resource and we are continuing to evaluate the opportunity in the context of vastly improved silver prices.”
Tinka is advancing detailed target prioritisation for the upcoming 5km drill program at Ayawilca. It will focus on high-grade silver and zinc areas, including resource conversion and extension.
The company remains on track to start drilling at Ayawilca in the third quarter of 2026.
Tinka Resources is a base and precious metals exploration and development company with assets mainly in Peru.
Write to Richard Szabo at Mining.com.au
Images: Tinka Resources
