St George Mining (ASX:SGQ) - Executive Chairman, John Prineas (centre)
Executive Chairman, John Prineas (centre)
Source: St George Mining
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  • St George Mining (SGQ) has provided an update on its drilling program at the Mt Alexander Project in the northeastern Goldfields region of WA
  • At the start of this month, the company began drilling a magnetotelluric (MT) target which is designed to test a large conductive feature at Investigators
  • This hole intersected a mineralised ultramafic unit between 22.5 and 28.8 metres downhole — suggesting a second mineralised ultramafic belt to the north and parallel of the Cathedrals Belt
  • Intrusive rocks have shown similarities to nickel-copper sulphide deposits at the Cathedrals Belt
  • A further hole is being drilled and is currently at 62 metres downhole
  • In the meantime, surveys continue at the holes recently drilled at the Fish Hook prospect
  • Company shares are down eight per cent and are trading for 9.2 cents each

St George Mining (SGQ) has provided an update on its drilling program at the Mt Alexander Project in the northeastern Goldfields region of Western Australia.

The Mt Alexander Project includes five granted exploration licences. Exploration Licence E29/638 comprises the Cathedrals, Stricklands, Investigators and Radar discoveries.

Investigators

At the start of this month, the company began drilling the MAD180 magnetotelluric (MT) target. This deep hole was designed to test a previously identified large conductive feature at Investigators.

The drill hole intersected a thick shear zone at approximately 533 metres downhole. Initially, the shear zone was stable however the area has since deteriorated with rocks and sand from this area caving into the hole.

Despite efforts to condition the hole, the extent of the hole below the shear zone is blocked and impractical to drill further.

Encouragingly, St George intersected an ultramafic unit in MD180 between 22.5 and 28.8 metres downhole. The miner also observed oxidised nickel-copper sulphides between 28.65 and 28.8 metres.

The mineralisation was situated on the basal contact with granite which is considered a “textbook setting” for nickel sulphide mineralisation across the Cathedrals Belt.

Intersecting a shallow mineralised ultramafic unit suggests the potential for an ultramafic belt that lies parallel and to the north of the Cathedrals Belt.

St George Mining plans to undertake further exploration to investigate the extent of this ultramafic unit and whether it may actually host significant nickel-copper sulphide mineralisation.

A wedge will be inserted in MAD180 at roughly 524 metres downhole and a twin hole will be drilled to a planned depth of 850 metres.

“Notwithstanding our inability to complete the drilling of MAD180 as planned, the rocks intersected in the hole so far show positive signs for the potential in deeper areas of Investigators,” Executive Chairman John Prineas said.

Cathedrals Belt

A second diamond drill rig arrived earlier this week and commenced drilling of MAD182 at Cathedrals.

This hole is expected to be drilled to a 700-metre depth to test a large conductive feature identified by MT and Audio-frequency MT surveys.

Currently, MAD182 is at 62 metres downhole with mainly granitic rocks intersected.

“We are pleased that drilling is also underway at the Cathedrals Prospect following the arrival of the second diamond rig,” John stated

The large conductive feature is located to the northeast of the shallow, high-grade deposit at Cathedrals and may represent the down-plunge extension of the nickel-copper sulphide mineralisation.

Additionally, St George is carrying out downhole electromagnetic (DHEM) surveys at the holes recently drilled at the Fish Hook prospect.

Company shares are down eight per cent and are trading for 9.2 cents each at 10:33 am AEST.

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