Great Boulder Resources continues to return ‘high-grade’ gold results at Mulga Bill, Western Australia

Great Boulder Resources (ASX:GBR) reports drilling results continue to yield ‘high-grade’ gold results at the Mulga Bill Prospect, within the Side Well Gold Project located near Meekatharra in Western Australia.

The company says results from a series of reverse circulation (RC) holes drilled during August and September in the High Grade Vein (HGV) area in the north and the Primary Zone in the centre of Mulga Bill has returned results including 13m @ 25.50g/t Au from 96m including 4m @ 76.90g/t Au from 100m and 5m @ 8.65g/t Au 182m in 22MBRC061 in the HGV area.

Hole 22MBRC067 in the Central Zone intersected 10m @ 28.74g/t Au from 96m including 4m @ 29.4g/t Au from 96m and 1m @ 121g/t from 101m. Drillhole 22MBRC069 intersected 14m @ 5.22g/t Au from 92m including 4m @ 7.56g/t Au from 96m and 2m @ 20.47g/t Au from 102m.

Great Boulder says the drillholes returned from the Central Zone represent some of the ‘highest grade’ intersections at Mulga Bill outside of the HGV, and these intersections occur proximal to the fresh rock boundary and some supergene enrichment of gold may be present, however fresh quartz veining is associated with the intervals suggesting a primary source, possibly a shallow west-dipping ‘high-grade’ vein similar to those further north at Mulga Bill.

These holes were also drilled into the Copper-Gold-Silver Central Zone with Great Boulder expecting multi-element analyses to be returned in the coming months.

Great Boulder Resources Managing Director Andrew Paterson said these results demonstrate exciting upside across a number of prospects.

“These hits highlight the potential for additional high-grade zones to the south”

“Firstly, we have some extremely high-grade results in the central area of Mulga Bill which has seen less drilling than the HGV area. These hits highlight the potential for additional high-grade zones to the south.

Secondly we have extended the HGV area further north and opened up the potential that it may continue north of the cross-cutting Proterozoic dyke. This area remains relatively untested by RC drilling so there is a lot of scope for extensions in that direction.

Thirdly, the intersections on our new eastern high-grade lode discovery from a small number of test holes provide confidence in our geological model and targeting process.

Lastly, and significantly is the ongoing identification of new targets coming from our AC drilling. With new areas to test at Flagpole, Loaded Dog and Ironbark South we have a very busy program ahead of us.”

Great Boulder also reports results from the fourth phase of aircore drilling has been received, with holes drilled at Ironbark and Loaded God and 2 free holes drilled by the contractor at Flagpole to test the rig configuration.

Significant results recorded include 8m @ 1.02g/t Au from 48m in 22SWAC264 and 20m @ 1.07g/t Au from 16m in 22SWAC265, with both holes located at Loaded Dog.

Hole 22SWAC316 at Flagpole recorded 4m @ 4.24g/t Au from 108m.

The company says gold anomalism at Loaded Dog now defines a 900m plus zone within the regolith profile with gold occurring at a shallow depth in some areas, and further RC drilling is needed at this prospect to test the extent and orientation of primary mineralised structures.

Drilling at Flagpole has added to the geological confidence that ‘high-grade’ gold is hosted in shallow west dipping vein sets similar to those seen at Mulga Bill.

It also notes drilling to the west, east and south of Ironbark did not return any ‘significant’ gold mineralisation, however pathfinder anomalism highlights the continuation of the structure thought the be controlling the gold at Ironbark.

Great Boulder reports RC drilling is ongoing, with a further fourth phase of RC drilling at Ironbark now complete, and at Ironbark South drilling operations have been paused while the latest results are evaluated and reconnaissance work is completed.

Great Boulder Resources is a mineral exploration company with a portfolio of gold and base metal assets ranging from greenfields through to advanced exploration located in Western Australia.

Its core focus is advancing the Whiteheads and Side Well Gold Projects while progressing the initial exploration at the Wellington Base Metal Project.

Images: Great Boulder Resources Ltd
Written By Harry Mulholland
Hailing from the Central Coast region of NSW, Harry is a passionate journalist with a background in print, radio and ESG news. When not bashing away on his keyboard, he can be found brewing a coffee or playing with his dog.