Copper, nickel and cobalt explorer Great Boulder has found a 12 sq km “intrusive body” at its Mount Venn prospect in Western Australia.

Great Boulder’s shares tripled in one day last November when it first reported broad zones of shallow copper, nickel and cobalt over a 7.5km strike length at the site.

“The potential at Mt Venn is becoming very apparent with knowledge gained from recent drilling and an improved understanding of the ore-forming systems further confirming the prospectivity of the project,” Great Boulder boss Stefan Murphy said at the time.

The new anomaly — discovered 7km from Mt Venn — had “more than doubled Great Boulder’s exploration footprint at Mt Venn”, Mr Murphy told investors today.

Great Boulder will now fast-track exploration of the area.

Imaging showing Great Boulder's Mt Venn and Eastern Mafic intrusive complexes. Image: Mount Boulder
Imaging showing Great Boulder’s Mt Venn and Eastern Mafic intrusive complexes. Image: Great Boulder

“These results have opened up immense new potential at Mt Venn and could prove to be a game-changer at every level,” Mr Murphy said.

“From limited sampling completed over the eastern mafic complex, we can see distinct mafic units with evidence of nickel-copper depletion and a separate suite of mafic rocks with elevated nickel-copper-cobalt and MgO (magnesium oxide).”

“The results of the gravity survey have shown we are in a much larger system than previously thought.”

Great Boulder shares (ASX:GBR) tripled in November after initial drilling results.
Great Boulder shares (ASX:GBR) tripled in November after initial drilling results.