The principal deposit-type of interest on the Tuligtic Property is low- to intermediate- sulphidation epithermal gold-silver mineralization. This style of mineralization is recognised at the Ixtaca Zone but property scale high level epithermal alteration suggests that mineralization of this type can exist elsewhere on the Project. The Tertiary bodies intruding the Tamaulipas Limestones and the tertiary volcanics, makes the Property also prospective for Porphyry copper-gold-molybdenum (Cu-Au-Mo) and peripheral Pb-Zn Skarn deposits.

Mineralization
Two styles of alteration and mineralization are identified in the area: (1) copper- molybdenum porphyry style alteration and mineralization hosted by diorite and quartz- diorite intrusions; (2) silver-gold lowsulphidation epithermal quartz-bladed calcite veins hosted by carbonate rocks and spatially associated with overlying volcanic hosted texturally destructive clay alteration and replacement silicification.

Outcropping porphyry-style alteration and mineralization is observed in the bottoms of several drainages where the altered intrusive complex is exposed in erosional windows beneath post mineral unconsolidated ash deposits. Multiple late and post mineral intrusive phases are identified crossing an early intensely altered and quartz-veined medium-grained feldspar phyric diorite named the Principal Porphyry. Other intrusive types include late and post mineral mafic dykes and an inter-mineral feldspar-quar ........

A FS level mining design, production schedule, and cost model has been developed for the Ixtaca Zone of the Tuligtic Property. This current work focuses on the near surface high grade limestone hosted portions of the Ixtaca Zone deposit. The mine schedule includes an open pit mining operation with a process plant to produce gold and silver doré.

Mining will use a contractor owned and operated fleet.

The operational pits are designed based on the optimized shell, and the potentially mineable portion of the resource is estimated within those pits. The ultimate pit contains a total of 73.1 million tonnes of crusher feed at a strip ratio of 4.45:1.

Pit Design Slope Inputs and Bench Configuration
Pit designs are configured on 12m bench heights with berms every two benches.

Maximum inter-ramp slope height (bench stack height) is 150 m. A ramp or geotechnical bench with a minimum width of 20 m is required between bench stacks. Inter-ramp slope angles may be used up to a pit slope height of 150 m. Maximum overall slope heights are on the order of 400 to 420 m with recommended overall slope angles of 40° to 43°. Overall wall stability is governed by inter-ramp slope angles of 45° to 48° in the shale domain (a function of wall orientation) 43° in the ash tuff volcanic domain and 48° in the limestone domain. Inter-ramp and overall slope angles are listed in Table 16-6. These angles are for depressurized conditions, assuming that the pit ........

- subscription is required.

- subscription is required.