St George identifies even more nickel targets at Mt Alexander

St George has no shortage of targets for drilling at its flagship Mt Alexander project with a recent electromagnetic survey adding several nickel entries to the list.

With nickel exploration, which is being carried out in parallel with lithium exploration, having already made four high-grade sulphide discoveries with the aid of EM surveys – the company is understandably excited to test the new EM nickel targets later this quarter.

Topping up St George Mining’s (ASX:SGQ) list of the five new targets is the large P1 FLEM conductor located about 4km south of the high-grade Cathedrals nickel-copper-PGE deposit on the east-west Cathedrals Belt.

P1 has a high conductivity of 7,650 Siemens with a late-time EM response and covers a 400m by 200m area about 200m below surface.

The other four mid to late-time conductors are located within an area of about 700m by 400m.

“Initial results from the FLEM survey that commenced last week at Mt Alexander are very encouraging with a number of conductors confirmed in the area south of the Cathedrals nickel-copper-PGE Belt,” executive chairman John Prineas said.

“The prospectivity of the key conductive anomaly identified by the earlier moving loop ARMIT EM survey has been upgraded. The FLEM data indicates a larger and more conductive anomaly, referred to as P1 that has a geophysical signature consistent with massive sulphides.”

He added that not only is the P1 bedrock conductor located within the interpreted area of the granite/greenstone contact south of Cathedrals, it is also south of a large, distinctive seismic reflector – itself a priority drill target – with an interpreted source below the granite intrusion and bounded by faults that may be related to the Cathedrals massive sulphide mineralisation.

Mt Alexander nickel

Late-stage granites can disrupt existing greenstones resulting in the remobilisation and concentration of sulphide mineralisation adjacent to the granite/greenstone contact, which is known to host high-grade nickel such as the Flying Fox mine within the Yilgarn Craton.

At Mt Alexander, the known occurrences of nickel sulphides north and south of the target area support the potential for nickel sulphides to be remobilised within or adjacent to granite.

Such deposits might be blind from surface, making EM surveys the way to go for the discovery of any conductive material.

The FLEM survey is continuing at underexplored areas of interest at Mt Alexander, with potential for additional priority nickel targets to be defined.

This article was developed in collaboration with St George Mining, a Stockhead advertiser at the time of publishing.

This article does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.