Discovery Of Northern Extension Of The Pampa Medina Deposit

VANCOUVER - Marimaca Copper Corp. reported the discovery of the northern extension of the Pampa Medina deposit, located approximately 26km from the  Marimaca Oxide Deposit (MOD). The Company also reports results from the maiden scout drilling program at the Pias target, located northwest of Pampa Medina within the broader Sierra de Medina (SdM) Property Block.

Hole SMR-01 was drilled 400m north of the known northern extent of the Pampa Medina deposit and represents a material extension of the sediment and volcanic-hosted ‘manto-style’ mineralization. SMR-01 intersected significant oxide copper and chalcocite mineralization from 272m-462m, transitioning to dominantly chalcopyrite-bornite mineralization from 462-650m (final depth). The drill hole was terminated in mineralization (last sample interval of 648-650m grading 3.43% CuT) due to operational challenges at depth with reverse-circulation (RC) drilling.

True widths cannot be determined at this time, however SMR-01 was orientated to target perpendicular intersections of the key manto-hosting lithological units. Three additional drill holes remain pending at Pampa Medina (targeting both west and north step-outs). The Company is currently considering an expanded discovery exploration program at Pampa Medina Norte in 2025.

Also Marimaca announced  results from the scout reverse-circulation drilling at the Pias target, located ~15km from Pampa Medina within the Company’s broader SdM Property Block. Results demonstrate potential for delineation of near-surface copper oxide mineralization.

Sergio Rivera, VP Exploration, said, “The discovery of Pampa Medina Norte validates our exploration model targeting the key sedimentary and volcanic host units that we know to be productive for manto-style mineralization both locally and regionally – including recent tier 1 greenfield discoveries like Antofagasta’s Cachorro deposit.

We are very excited about the implications of SMR-01 for potential growth at Pampa Medina. We will take the coming weeks to define the strategy for an expanded exploration program in 2025 which will focus on testing further extensions to the north, as well as extensions at depth following up on the high-grade bornite-chalcopyrite mineralization encountered at the base of the hole.”