THE DRILL SERGEANT: Galileo Mining (ASX: GAL) recently completed aircore drilling at the company’s Lantern prospect, within the Fraser Range nickel belt of Western Australia.
Galileo Mining said the drilling confirmed a highly prospective intrusive gabbronorite rock unit above a previously reported conductor with aircore drill holes hitting a maximum depth of 102 metres.
The drilling was designed as a first pass test to confirm the prospectivity of the conductive targets which have been modelled at approximately 340m depth.
Galileo said the confirmation of prospective rock units will assist targeting efforts for future programs of work, which is expected to include RC drilling and diamond drill hole testing of the conductive targets, looking for nickel sulphide mineralisation.
The Lantern Prospect is situated in the northern Fraser Range block where Galileo has 500 square kilometres ground holding, surrounded by Independence Group and Legend Mining, both of which are working up multiple prospects.
“The second drilling program at Lantern has again confirmed we have the right rock types with the potential to host significant nickel sulphide mineralisation,” Galileo Mining managing director Brad Underwood said in the company’s announcement to the Australian Securities Exchange.
“The intrusive rock unit matches the location of a conductive zone at depth which provides us with an excellent target for drill testing.
“We also have access to diamond drill hole funding through the state government Exploration Incentive Scheme which allows us to efficiently use shareholder funds in the pursuit of high value discoveries.”
The aircore drilling has demonstrated that up to 100 metres of cover rocks and weathered regolith occur at the prospect resulting in relatively low penetration of the EM signal into the ground.
Galileo is now planning RC drilling at Lantern to provide a platform for Down Hole Electro-Magnetic (DHEM) surveying.
DHEM surveying across four proposed drill holes will allow for more accurate definition of the conductive response below the cover rocks prior to diamond drill hole testing.
The Lantern prospect is a blind, undercover target the company considers to represent a next generation undercover prospect with potential to host mineralisation.
Additional aircore drilling undertaken at a second target within the Lantern area has expanded the known extent of the prospective differentiated intrusion.
This has been interpreted by the company to demonstrate an increased search space for nickel mineralisation at the Lantern prospect along strike to the north of the conductive trend.
The new target occurs on the northern margin of a differentiated intrusion outside of the area covered by the original EM survey.
A new EM survey will be required to advance this target through to the drill testing phase of exploration.