Pulacayo Project Feasibility Study - Apogee Silver

Pulacayo 1 000 t/d Phase I Feasibility Study - NI 43-101 Technical Report
090644-3-0000-20-IFI-100
Figure 14.1: Isometric View of the Surpac Topographic Surface DTM – View to NW
14.3.4.2 Oxide Surface
The Pulacayo deposit is capped by a layer of oxide material where the original volcanic host
rocks and sulphide mineralization has been altered by deep weathering effects. Economic
mineralization of the TVS is observed to continue through the oxide-sulphide transition and
was the focus of 45 drill holes from the 2011 Apogee drill program.
Sectional interpretations from drill hole data on nominal 50 m spaced sections were used to
develop an oxide-sulphide surface DTM model in Surpac and subsequently used to code
oxide blocks within the block model (Figure 14.2). The oxide zone ranges from less than 5 m
to 50 m or more in thickness across the Pulacayo deposit area, but averages 20 m to 30 m
thick above the mineralized zone evaluated in the current resource.
TWP Sudamérica S.A. Av. Encalada 1257 Of. 801, Santiago de Surco Lima 33, Perú (51-1) 4377473
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