St George Mining Ltd (ASX:SGQ) (ASX:SGQ) has had a busy and successful FY20-21 with its focus on the flagship high‐grade Mt Alexander Project in Western Australia’s Goldfields region.
All deeper holes completed in 2021 to test the deeper extensions at the Cathedrals Belt intersected intrusive rocks to provide St George with strong encouragement as it continues the search for deeper deposits of massive nickel‐copper sulphides.
Breakthrough success came with MAD199, which delivered the deepest and western most occurrence of massive sulphides discovered to date – more than 11 metres of high‐grade mineralisation from 333.5 metres downhole.
Drill core from the massive sulphide interval of MAD199 between 342.12m to 343.4m downhole
This discovery confirmed that the large intrusive unit at the Cathedrals Belt is fertile for nickel‐copper sulphides at depth and demonstrates the excellent potential to discover further high‐grade mineralisation in other underexplored areas of the Cathedrals Belt.
With a large number of downhole electromagnetic conductors identified at depth, the likelihood of further high‐grade mineralisation is high.
Combination of high-grade nickel, copper, cobalt and platinum group metals
St George Executive Chairman John Prineas said: “Sulphide mineralisation of the kind we have at Mt Alexander is incredibly rare – the combination of high-grade nickel, copper, cobalt and platinum group metals is simply not seen anywhere else in Western Australia, or Australia for that matter.”
Stricklands deposit starter mine
St George will continue its systematic drilling of the deeper targets underpinned by the company’s determination to expand the mineralised footprint at Mt Alexander.
At the same time, St George is progressing the scoping study on a starter mine based on the small but high‐grade and near‐ surface Stricklands deposit.
Drill core from STD014 showing massive nickel‐copper sulphides. STD014 is one of the metallurgical drill holes completed in 2021 at the Stricklands deposit.
Paterson Project
During the year, St George also launched the maiden drill program at the Paterson Project in the Paterson Province of Western Australia’s East Pilbara region.
This region is one of Australia’s most exciting exploration frontiers and St George’s presence there complements the company’s focus on high‐quality, high‐grade exploration opportunities.
Drilling at the Paterson Project has intersected prospective lithology and pathfinder elements for base metals and gold mineralisation.
These early results are feeding St George’s belief that its tenure has strong potential to host copper and gold deposits similar to those already discovered in the Paterson – like at Rio Tinto’s Winu Project and the Havieron Project being explored in joint venture by Greatland Gold and Newcrest Mining.
Broadview Project
In line with St George’s focus on adding value for shareholders through high‐quality exploration, the company has secured two exploration licences about 150 kilometres east of Perth in Western Australia’s Wheatbelt region.
The tenure covers two unexplored belts that are interpreted to be splays off the mobile belt that hosts the Moora‐Julimar‐Yarawindah area where Chalice Mining and other explorers have recently made significant discoveries.
St George has named this new greenfields venture the Broadview Project and will embark on a systematic exploration program to search for nickel‐copper‐PGEs as well as gold and copper mineralisation.