The holes were testing electromagnetic (EM) targets and both holes intersected nickel-copper sulphides as predicted by the EM modelling, maintaining the high success rate of EM targets.
The drill core has been logged and sent to the lab for assays.
These pre-lab results in MAD175 and MAD176 confirm further continuity of mineralisation between the known high-grade massive sulphide lenses at the Cathedrals Prospect
Downhole EM (DHEM) surveys will be completed in these holes to search for further potential conductive mineralisation around the holes.
Strike now over 5.5 kilometres
St George’s executive chairman John Prineas said: “Step-out drilling across the Cathedrals Belt continues to intersect nickel-copper sulphides over a broad area – providing evidence of the growing potential size of the high-grade deposits associated with the Belt.
“The discovery in 2019 of high-grade nickel-copper sulphides at the Radar Prospect extended the east-west strike of mineralisation in the Cathedrals Belt to more than 5.5km – giving weight to the geological interpretation that if the mineral system is that long, it must also be deeper than currently defined.
“Deeper drilling along the Belt has commenced and it is consistently finding more mineralisation in the same north-northwest direction, showing a strong vector for potentially larger, intrusive-style nickel sulphide deposits at depth.
“Strong targets are also emerging at the West End and Fish Hook Prospects – two unexplored areas which have the potential to deliver a new greenfields discovery.
Assays confirming high-grade mineralisation
“Laboratory assays have confirmed our nickel-copper sulphides as some of the highest grade discoveries in Western Australia.
“The potential high value of our discoveries is further emphasised by the high cobalt and palladium present in the mineralisation.
“We are excited by the outlook for 2020 – a year where we will continue to establish the scale of the mineralisation at Mt Alexander as well as progressing preliminary scoping studies for potential mining operations.”
Metallurgical work to be completed on Investigators samples
Hole MAD177 was drilled at the Investigators Prospect as a twin hole of MAD127 to provide core samples for metallurgical test work.
The hole intersected 8.49 metres at 5.8% nickel, 2.6% copper, 0.18% cobalt and 3.61 g/t PGEs from 183.9 metres (drill core can be seen in cover image).
The test work will be conducted in Perth and Canada as part of the scoping studies underway for a potential mining operation at Mt Alexander.