APN: TSX‐V
ALTPF: OTCQB
9AJ1: FWB

EDMONTON , Sept. 27, 2017 /CNW/ - Altiplano Minerals Ltd. (APN.V) (ALTPF) (9AJ1.F) ("APN" or the "Company") is pleased to provide an update on the Maria Luisa High-Sulphidation Gold-Copper Project, Incahuasi, Chile . During July-August the Comet Joint Venture (CJV) completed Phase II fieldwork in preparation for drilling and development work. The fieldwork comprised a Drone survey (High-resolution orthophotos and Digital Elevation model (DEM)), surveying of the underground workings, detailed surface and underground mapping, and additional surface and underground sampling of the various Au-Cu vein systems. All the data has been incorporated into a GIS and modelled using Micromine software.

The Maria Luisa hosts Au-Cu mineralization in two major NW and NS trending strike-slip structural systems. The Au-Cu vein systems comprise 3 main veins named; Maria Luisa, Camino, and Cuchard. The area also contains numerous Au-Cu veins associated with cross structures between the main structures. The structural system has been reactivated multiple times along its protracted history. Historical mining has been largely from the Maria Luisa vein system and the other vein systems remain unexplored. 

The vein systems are anastomosing, traceable for 500m or more, range in width from 1-5m, and include veins, and magmatic and tectonic breccias. Mineralization was emplaced in two main stages: Stage I (Au-rich) comprising specular hematite-quartz banded veins with epithermal textures grading up to 25g Au/t across 1.6m with 0.9% Cu, and Stage II (Cu-rich) comprising magmatic hydrothermal breccias of Stage I mineralization, and quartz-chalcopyrite with minor bornite. Samples collected from Stage II are up to 3% Cu with 3.7 gAu/t.

Diamond drilling either from underground or surface to probe this additional potential." data-reactid="15">Correlations between surface and underground mapping suggest that high Au-Cu grades in the main Maria Luisa structure continue down to level 841 and below (Figs. 1 and 2). The Phase II results give a better understanding of the geology and mineralizing structures. Sampling at surface and underground confirms the grade and widths of the system and correlates with the grades and widths in the historical resource estimates. The CJV is presently planning additional work including further mapping and Diamond drilling either from underground or surface to probe this additional potential.

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