Marimaca Copper (ASX:MC2) reports ‘high-grade’ copper-silver intersections from ongoing step-out drilling at its Pampa Medina deposit in Chile’s Antofagasta Region.
The latest results from hole SPRD-07 extended the ‘ultra-high-grade’ bornite zone 300m south of previous drilling.
Intercepts include 20m @ 2.65% copper (Cu) and 13.9 grams per tonne (g/t) silver (Ag) from 564m, including 6m @ 6.11% Cu and 24g/t Ag, alongside 104m @ 1.01% Cu and 4.7g/t Ag from 664m, including 40m @ 2.04% Cu and 11.1g/t Ag.
Meanwhile, drilling in hole SPRD-08B intersected mineralisation in basement metasediments for the first time, reaching a depth of 1,052m to mark the deepest hole drilled at the project to date.
Results returned 660m @ 0.41% Cu and 1.8g/t Ag from 386m, including 98m @ 1.21% Cu and 7.6g/t Ag, and 16m @ 2.90% Cu and 21.2g/t Ag from 388m.
VP Exploration Sergio Rivera says the step-out program continues to deliver ‘high-grade’ intercepts across the central area of interest (AOI).
“SPRD-07 extended the ultra-high-grade bornite-chalcocite zone 300m south of previous drilling, while SPRD-08B intersected mineralisation in basement metasediments for the first time,” Rivera says.
“This is an encouraging development, as it expands the prospective stratigraphy beyond the previously defined host units.”
Located 28km east of the Marimaca oxide deposit in Chile’s Antofagasta region, Pampa Medina is a manto-style copper deposit dominantly hosted in Jurassic-Triassic sedimentary units overlain by andesitic volcanics and underlain by Upper Paleozoic metamorphosed sediments.
Marimaca’s 2026 campaign focuses on defining the central AOI, delineating oxide extensions, and conducting step-out testing along broader target structures.
Marimaca Copper is focused on advancing high-quality copper assets in northern Chile.
Write to Paula Fabe at Mining.com.au
Images: Marimaca Copper
