St George Mining Ltd (ASX:SGQ) has identified new nickel sulphide targets during a fieldwork campaign at its flagship Mt Alexander project in WA.
A comprehensive geophysical program — involving seismic and electromagnetic (EM) surveys — generated the new targets, which St George plans to explore further for nickel-copper-platinum group element (PGE mineralisation).
As it plans its next steps, St George will continue to interpret the seismic and EM data in the hopes of adding more targets to its register.
Next up, the base metal explorer will fly a survey over its new EM anomalies before hitting the soil with a drill program next quarter.
Potential for new, large deposits
Speaking to the new targets, St George executive chair John Prineas said: “With multiple high-grade discoveries at the project and large areas of tenure underexplored, Mt Alexander is one of the most prospective nickel-copper-PGE sulphide projects in Western Australia.
“We are delighted that the latest seismic and EM surveys have delivered a number of targets that have the potential to add to our existing discoveries.
“Significantly, the new targets are in unexplored areas of the project identified as having potential for new, large deposits.
“We look forward to progressing these targets to drill testing in the coming weeks."
Targets acquired
St George’s latest survey identified three strong EM anomalies that warrant follow-up — all of which bear a geophysical signature consistent with massive sulphides.
Anomaly 1 is modelled as a discrete bedrock conductor around 320 metres below the surface. St George believes it represents a compelling nickel sulphide target within the Manta prospect, which will be prioritised for drilling.
Meanwhile, the lines planned west of the granite/greenstone contact were unable to be completed due to rugged terrain, but a further fixed loop EM survey is proposed to further constrain the EM response.
Other targets at Mt Alexander include a strong EM anomaly at the Radar prospect and two large anomalies at the Sultans prospect.
Survey work also recorded a number of EM responses at the West End prospect, which is considered to be more likely associated with conductive cover rather than bedrock conductors.
Lithium potential
As it refines its search for base metals, St George is also exploring other mineralised opportunities at Mt Alexander.
Prineas continued: “We are also finalising our review of the lithium prospectivity at Mt Alexander with our report expected very shortly.
“Investor interest in the lithium potential of this area is growing with continuing success by Red Dirt Metals at its nearby lithium project and Zenith Minerals also commencing its lithium search in Mt Alexander.”
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