Altiplano Minerals Ltd Completes Phase II Exploration at the High-Grade Au-Cu Zone at Maria Luisa, Incahuasi, Chile
September 27, 2017 - Altiplano Minerals Ltd. (TSX-V: APN) (OTCQB:ALTPF) (FWB: 9AJ1) (“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 1I 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 1-5 m, 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.
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.
Figure 1. Structural map of the Maria Luisa vein showing selected Au and Cu grades from surface and underground samples. The line A–B represents a cross section of figure 2. The portals of levels 916 and 888 are labeled as a reference.
Figure 2. Cross section along the line A–B on Figure 1, showing the projection of the main Maria Luisa structure and levels 916, 888, 858, and 841 and open potential below. Samples on surface and level 841 are shown as a reference.
Altiplano Minerals Ltd. (APN: TSX?V) is a mineral exploration company focused on evaluating and acquiring projects with significant potential for advancement from discovery through to production, in Canada and abroad. Management has a substantial record of success in capitalizing opportunity, overcoming challenges and building shareholder value. Additional information concerning Altiplano can be found on its website at www.altiplanominerals.com.
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This release includes certain statements that may be deemed "forward-looking statements". All statements in this release, other than statements of historical facts, that address exploration drilling, exploitation activities and events or developments that the Company expects are forward-looking statements. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results or developments may differ materially from those in the forward-looking statements. Factors that could cause actual results to differ materially from those in forward-looking statements include market prices, exploitation and exploration successes, continuity of mineralization, uncertainties related to the ability to obtain necessary permits, licenses and title and delays due to third party opposition, changes in government policies regarding mining and natural resource exploration and exploitation, and continued availability of capital and financing, and general economic, market or business conditions. Investors are cautioned that any such statements are not guarantees of future performance and actual results or developments may differ materially from those projected in the forward-looking statements. For more information on the Company, investors should review the Company's continuous disclosure filings that are available at www.sedar.com.