THE DRILL SERGEANT: Impact Minerals has kicked off a reconnaissance aircore drill program at the company’s Mulga Tank project located north east of Kalgoorlie in Western Australia.
Impact Minerals said the program will test five targets for gold mineralisation and three targets for nickel-copper-cobalt mineralisation hosted in Archaean greenstones that was identified in magnetic and gravity data together with anomalous drill results from previous explorers and work completed by Impact.
The company said the previous work demonstrated that the style of mineralisation and the nature of the rocks in the greenstone belt are similar to those that host the one million tonne nickel deposit at Perseverance and the more than two million tonnes of contained nickel Mt Keith deposit near Leinster in WA.
Impact pointed out the project area occurs in the same geological terrain as the recently discovered Gruyere deposit of more than five million ounces of gold.
“Two of the five gold targets being drilled are conceptual analogues for Gruyere-style gold mineralisation, gold in quartz veins within a layer parallel granite intrusion,” Impact Minerals said in its ASX announcement.
“The other three gold targets occur over notable deflections in structures and with evidence of anomalous gold from previous explorers.
“The three nickel targets have been identified as prospective for komatiite and dunite-hosted nickel sulphide mineralisation.”
Impact claimed discovery of high-tenor nickel and copper sulphides at the Mulga Tank Dunite in its maiden drill program at the project.
The company has designed the current aircore program to test for gold and nickel dispersion along the unconformity between the basement and younger cover of sand and alluvium as well as testing for primary mineralisation in the fresh bedrock.