Andina Copper Corporation (TSX-V: ANDC | FSE: FIR | OTCQB: PMMCF) reported another outstanding drill intercept from hole CDH006 at the Cobrasco Project in Chocó, Colombia. The hole, collared on a new step-out pad approximately 400m northwest of previous pads, returned 486m at 0.42% Cu, 51ppm Mo, and 1.20g/t Ag, including 232m at 0.68% Cu, 75ppm Mo, and 2.0g/t Ag from 38m. The results confirm the continuity of the Cobrasco Central Cu-Mo mineralization system to the northwest.
Drillhole CDH006 was designed to test the northwest extension of the mineralized system and intersected near-surface mineralization starting at 38m within weathered saprolite, continuing through multiple anomalous intervals in rhyodacitic porphyries to a faulted contact at 808m. The company has since completed two additional holes from the same platform (CDH007 and CDH008), with visible mineralization observed and assay results pending. The ongoing drill program has expanded the known mineralization footprint to a lateral extent of approximately 950 x 525m, which remains open in all directions.
Andina Copper’s President and CEO Joseph van den Elsen stated, “Every scout drillhole completed to-date has intersected significant intervals of Cu-Mo mineralization, further extending the mineralization footprint. This footprint now covers an area of at least 950 x 525m within the emerging Cobrasco Central mineralization.” He added that broadly spaced, systematic scout drilling will continue to define the limits of mineralization and test newly developed targets. Preparations are underway for the mobilization of a second drill rig to support definition of new targets and in-fill drilling across widely spaced scout holes.
The geology of CDH006 revealed felsic porphyries of rhyodacite composition with mineralized intervals related to chalcopyrite, sometimes replaced by bornite in intensely fractured rocks. Hydrothermal alteration transitions from strong argillic in the upper portions to phyllic and grey-green-sericite (GGS) associated with the bulk of mineralization. Structural controls are evident, with a low-angle fault structure introducing high copper and molybdenum grades (4.6% Cu, 1495ppm Mo from 46-48m). A magmatic brecciation zone from 38m to 270m contains the high-grade intercept of 232m at 0.68% Cu. Below 808m, a polymictic intrusive breccia with pyritic matrix shows decreased mineralization.
The company’s corporate presentation is available online. The qualified person for the technical information, Francisco Montes, a consultant of Andina Copper and a member of Australian Institute of Geoscientists, has reviewed and approved the content. The company adheres to strict QAQC protocols, with core samples sent to ALS preparation in Medellin and analysis in Lima, Peru.
