Included in the Study are the following deposits:
• Myhree Mining Centre: Myhree (open pit), Boundary (open pit)
• Majestic Mining Centre: Majestic (underground), Jones Find (open pit), Crown (open pit)
• Fingals Mining Centre: Fingals Fortune (open pit), Fingals East (open pit)
The production profiles and mining sequences may change in future studies as the deposits are subject to ongoing infill and extensional drilling. For example, the large Fingals Fortune deposit remains open in all directions and at depth. In addition, there has been a focus on open pits with some deposits (eg Myhree and Fingals Fortune) potentially amenable to underground mining.
Open pit and underground mining being undertaken by mining contractors. Overall project implementation and management by a Black Cat owner’s team.
Open Pit
The mining method selected was top-down conventional drill-blast-load-haul with design parameters based on machinery capabilities and geotechnical recommendations. A undiluted minimum mining width (MMW) of 2.0m was applied, including unplanned dilution of 0.5m on both the hangingwall and footwall contact. The grade of this dilution material was determined based on the contained Resource. Mining recoveries of 95% were applied to account for loss during mining.
Load and haul production was scheduled based on the capabilities of 200t and 120t excavators, 90t rigid trucks mining 2.5m flitch heights, with cons ........
