Special Report: New drilling confirms that the high-grade gold system at Great Southern Mining’s (ASX:GSN) flagship Cox’s Find project is bigger than originally thought.

 This extensive reverse circulation (RC) and diamond drill program has successfully built on Great Southern’s early exploration success at the historic high-grade Western Australian gold mine, which produced 77,000oz at more than 21 grams per tonne (g/t) between 1935 and 1942.

Recent drilling proves there is a lot of high-grade gold left in the ground at Cox’s Find, which the explorer believes has all the hallmarks of a modern underground mine development.

The diamond program has returned exceptional hits like 1m at 27.5g/t gold inside a larger 3.6m section grading 8.03g/t, 169m from surface.

This hole hit the quartz rich main lode 30m ‘down plunge’ from the bonanza intersection of 5.65m at 80g/t announced in July.

This is significant because it demonstrates that the Cox’s Find main lode extends down to the lower extremities of the historic workings, about 150m below surface.

Great Southern says an opportunity exists to develop the high-grade lode at the 5-6 level, where it looks like large portions of the main lode were overlooked by Western Mining Corporation in the 1940s.

The RC drilling program was designed to test near-surface, down-plunge and strike extensions of the main lode north and south of the pit.

This drilling also shows the mineralised system keeps going, with results including 5m at 5.51g/t from 59m, including 2m at 12.5g/t.

Southern extensions confirm the mineralisation sequence continues further south than previously thought, the company says.

A hole drilled at the southeastern extremities of the old workings hit 15m at 1.01g/t from 167m, which shows similar characteristics to previous bonanza gold intersections.

It is interpreted that high-grade mineralisation may persist at depth in the southeast direction and this area now becomes a highly ranked target for follow up work.

Great Southern Mining’s newly appointed chief executive officer Sean Gregory says these results cement a tremendous platform for further exploration and growth at Cox’s Find.

“The team has demonstrated that the bonanza grades reported earlier in the quarter are part of a continuous mineralised system that extends to depth and along strike to the south,” he says.

“It is an exciting time for the company as we are only just beginning to unlock the geological potential of this high-grade gold system.”


Next steps

The recent RC and diamond drilling program at Cox’s Find successfully demonstrated that high-grade gold persists at depth and along strike at Cox’s Find.

Targets for the next phase of drilling will include the unmined high-grade level 5-6 material, and the plunge extensions at depth and to the south.

More drilling results from initial regional targets to the north — high ranked structural ‘lookalike’ targets of Cox’s Find — are also expected to be published in the coming weeks.

These targets are only two of many high priority regional targets that were generated from an initial structural geology interpretation.


This article was developed in collaboration with Great Southern 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.