Galileo Mining (ASX: GAL) has defined a strong electro-magnetic (EM) conductor beneath recent drill hole NRC493, five km along strike from the Callisto deposit at the Company’s 100% owned Norseman project in Western Australia.
“We continue to develop new drill targets at our Norseman project as we move along strike from the 17Mt Callisto deposit. Our belief in the prospectivity of the region remains as strong as ever. The compelling reason for our conviction is because one of the best places to look for new deposits is close to known deposits on ground that has had minimal previous exploration,” Managing Director, Brad Underwood, said.
“Exploration on our Norseman ground prior to the discovery of Calisto in 2022 was extremely limited in scale. Post discovery, and with $13.6 million cash, we have the opportunity of being the first explorers to systematically look for Callisto style mineralisation within our significant 255 sq. km Norseman tenement package.
“Drill planning for our next program is now in the advanced stages with drilling scheduled to commence in mid-August.”
Downhole EM surveying was undertaken on drill hole NRC493 which was originally drilled into a high chargeability/low resistivity geophysical anomaly defined by pole-dipole IP surveying.
The geology intersected in drill hole NRC493 was unable to explain the geophysical response while intersecting a thick zone of ultramafic rock interpreted to be a unit of the prospective sill which hosts the Callisto nickel-copper-PGE deposit.
Data from the down hole EM survey showed a highly conductive response which was modelled with a plate size of 202 metres strike length, 432m down dip extent, and a conductance of 16,129S. The model dips to the south-east and passes approximately 100m beneath the drill hole
The up-dip projection of the conductor matches the position of another chargeable /low resistivity feature observed in the pole-dipole survey data.
The multiple data sets lend support to the interpretation that the base of the ultramafic sill is represented by the modelled conductor where sulphides may have accumulated. Drill testing is required to determine whether any sulphides present contain economic concentrations of nickel, copper, and/or PGE metals.
Target generation work including interpretation of IP surveys, EM surveys, geological mapping, and detailed geochemical analyses of existing drill results is continuing. This work is expected to develop further targets for drill testing and build the company’s understanding of the potential for new discoveries in the region.
