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Home / Copper / More strong results from step-out drilling at Mt Alexander: St George

St George Mining

  • ASX: SGQ
    • Cu
    • Ni

More strong results from step-out drilling at Mt Alexander: St George

  • 29 October

Growth-focused Western Australian nickel company St George Mining (ASX: SGQ) has announced more significant results from ongoing exploration programs at its flagship Mt Alexander Project, located in the north-eastern Goldfields.


HIGHLIGHTS

·       Multiple electromagnetic (EM) conductors identified down-plunge of shallow nickel-copper sulphide deposits:

·       Downhole EM surveys in the recently completed deep stratigraphic holes along the Cathedrals Belt have identified seven strong off-hole EM conductors

·       New conductors have electrical properties consistent with massive sulphides

·       Excellent potential for drilling of the new targets to discover more high-grade mineralisation down-plunge of the known shallow deposits at Investigators,

·       Stricklands and Cathedrals Prospects MAD168 intersects thick nickel-copper sulphides 80m down-plunge of known mineralisation at the Investigators Prospect:

·       Large step-out hole at Investigators intersects breccia and stringer sulphides 

·       Style of mineralisation is indicative of sulphides remobilised from a larger, proximal source

·       Downhole EM survey identifies strong off-hole conductors

The shallow, high-grade nickel-copper sulphides discovered at the Cathedrals Belt to date are associated with mafic-ultramafic intrusions interpreted to have passed upwards from the Earth’s mantle through structures located in the northern margin of the Belt.

Deeper drilling to track the mineralised intrusive units down-plunge of the shallow deposits has successfully intersected these units in their interpreted down-dip extension; see our ASX Release dated 4 October 2019 ‘Deep Drilling Confirms Continuity of Mineralisation’.

Downhole EM (DHEM) surveys underway in these deeper holes have now identified multiple off-hole EM conductors, which are excellent targets for the discovery of further nickel-copper sulphide mineralisation.

John Prineas, St George Mining’s Executive Chairman, said: “These new EM targets from the deeper holes indicate that the large, high-grade mineral system at the Cathedrals Belt is ‘live’ at depth.

“With all EM conductors drilled in the Cathedrals Belt confirmed as nickel-copper sulphides, the new EM conductors present a tremendous opportunity to make further discoveries and to confirm the continuation of mineralisation down-plunge.

“We are seeing increasing potential for significant mineralisation at depth, and are excited to be escalating our drill programme to more intensely test this priority target area.”

Peter Klinger

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