Mineralization
At least two, and possibly three, mineralizing events are observed at the scale of the property, but the relationships and timing of these events is not currently known.

Mineral Deposition
In general, four gold depositional sites are recognized at Ana Paula (Gibson, 2012):
1. Quartz-sulphide and quartz-carbonate-sulphide veinlets, stockworks with sulphide clots and disseminations in both intrusions and hornfels.
2. Narrow semi-massive sulphide contact replacement of limestone or hornfels/skarn at the intrusion contacts.
3. Sulphide clots, rims and masses in narrow contact breccias hosted in intrusions at or near the sedimentary contacts and/or fault contacts.
4. Mineralization associated with a sulphide constituent within breccia matrix and with sulphide replacement textures within structurally controlled breccia formed oblique to the dominant northerly trending westerly dipping stratigraphy.

Mineralization at Ana Paula occurred during at least two different events or stages. The first event is characterized by gold-arsenic-(bismuth-tellurium), (or Au-As-(Bi-Te)), where mineralization is associated with intermediate intrusions emplaced into limestone. The second event locally cuts the first and is characterized by gold-silver-lead-zinc-mercuryantimony (or “Au-Ag-Pb-Zn-Hg-Sb”), containing locally zoned coarse sphalerite. There are also various quartz-calcite veins with epithermal textures, but the relative t ........

The Ana Paula Project will be mined by open pit methods with a contractor using conventional truck and loader production equipment. A mill feed of approximately 5,000 t/d is planned over an approximate 8-year mine life. There will be pre-strip material in Year -1, with a full production rampup in Year 1.

Three pit phases were designed for Ana Paula. Due to the topography present at the project site, access to each of the phases was considered crucial and was incorporated into the designs. Slopes for the pit design were based on Knight Piésold recommendations. They have safety benches of 8.1 m in width every 18 m vertically with an 80 degree bench face angle. This provides for a 58 degree inter-ramp angle in all sectors of the pit.

Equipment sizing for ramps and working benches is based on the use of 63 t rigid frame trucks although the final contractor will use 56-tonne trucks. Single lane access is 17.8 m (2 x operating width plus berm and ditch) and double lane widths are 23.5 m (3 x operating width plus berm and ditch). Ramp gradients are 10% in the pit for uphill gradients and 8% uphill on the dump access roads. Working benches are designed for 35 to 40 m minimum on push backs.

During the mine life, two stockpiles will be required to manage the mill throughput. One will be a temporary location on the Valley WSF to be used in Year 1. The second will be located adjacent to the primary crusher for use as required during the mine life.