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Marimaca Drills Pampa Medina Sulphides โ€“ Intersects Exceptional 6m of 12.0% Cu within 26m of 4.1% Cu in dominantly Bornite in SMRD-13, 40m of 2.1% Cu in SMD-02
Globenewswireยท 2025-07-03 10:15
Core Insights - Marimaca Copper Corp. announced significant high-grade copper intersections at the Pampa Medina deposit, extending its mineralization in all directions [1][2][3] - The drilling results indicate a unique sediment-hosted copper system in Chile, comparable to notable global deposits [2][3] - The company plans to host an investor presentation to discuss these findings and their implications for future production [2][8] Drilling Results - Drilling confirmed the presence of ultra high-grade (>5% CuT) zones over 15 meters thick, located more than 600 meters apart [2] - High-grade (>1.0% CuT) mineralization was defined across a 600m x 1,000m area, with potential extensions to 1.4km x 1.2km [2][3] - Notable intersections include: - Hole SMRD-13: 6m of 12.0% Cu from 594m downhole within 26m of 4.1% Cu from 580m [2] - Hole SMD-02: 40m of 2.1% Cu from 282m downhole within 132m of 1.0% Cu from 278m [2] - Hole SMD-01: 68m of 1.2% Cu including 20m of 2.3% Cu from 298m downhole [2] Geological Context - Pampa Medina is characterized as a manto-style copper deposit hosted in Jurassic-Triassic sedimentary units, with mineralization extending laterally down-dip [10][11] - The sedimentary units are extensive and mineralized over many square kilometers, indicating significant potential for high-grade sulphide mineralization [3][4] - The geological model has been updated to focus on lower sedimentary units as productive horizons for future drilling [11] Infrastructure and Development Potential - The location of Pampa Medina offers significant infrastructure advantages, being close to existing mines and associated facilities [2] - The low altitude and flat terrain provide ample space for future facilities and infrastructure development [2] - The company anticipates that the Pampa Medina and Madrugador oxide deposits will enhance its copper cathode production profile and extend mine life [5][6] Future Plans - The company is completing a 10,000m drilling program across 14 diamond holes to further define the limits of the prospective sedimentary units [5] - The Definitive Feasibility Study (DFS) for the Marimaca Oxide Deposit (MOD) is nearing completion and will be released soon [6][8] - The previously announced Preliminary Economic Assessment (PEA) for Pampa Medina will be paused to reassess the implications of the new drilling results [8]