Marimaca Copper (ASX:MC2) reports ‘high-grade’ copper-silver mineralisation from ongoing drilling at its Pampa Medina deposit in Chile’s Antofagasta Region.
Hole SPRD-15 returned 216m grading 0.96% copper (Cu) and 7.2 grams per tonne silver (Ag) from 466m, including 62m grading 2.2% Cu and 21.5g/t Ag from 602m.
The intersection includes multiple ‘high-grade’ intervals, including 14m @ 3.05% Cu and 26.7g/t Ag from 606m, and 12m @ 3.25% Cu and 36.7g/t Ag from 632m.
Step-out drilling extended mineralisation 300m to the south and west. SPRD-12, drilled 300m west of previous drilling, returned 56m @ 0.95% Cu and 4.2g/t Ag from 748m, including 22m at 1.8% Cu and 9.7g/t Ag from 750m.
Near the current south‑east limit, SPD-13 returned 222m @ 0.5% Cu from 194m, including multiple stacked mantos.
VP for Exploration Sergio Rivera says the results demonstrate the defining features of Pampa Medina.
“The results from SPRD-15 are an excellent example of one of the defining features of Pampa Medina: extremely thick, continuously mineralised, high-grade manto horizons within the sedimentary sequence,” Rivera explains.
“The consistency of the high-grade mineralisation across the target horizon is remarkable and drilling continues to demonstrate the strong lateral and vertical continuity of the stacked-manto system within the central zone.”
Pampa Medina is a manto‑style copper deposit hosted in Jurassic‑Triassic sedimentary units, with copper mineralisation comprising both oxides and sulphides extending at depth.
The company owns approximately 14,500 hectares at the broader Sierra de Medina project area, located 28km east of the company’s Marimaca Oxide Deposit.
Marimaca Copper is a dual-listed Canadian exploration and development company focused on advancing copper assets in northern Chile, including its flagship Marimaca Oxide Deposit and the Pampa Medina Project.
Write to JC Villarba at Mining.com.au
Images: Marimaca Copper
