Wielding $220K co-funding, Great Southern Mining kicks off deep Duketon gold hole

Great Southern Mining (ASX:GSN) has started co-funded EIS diamond drilling in the Golden Boulder discovery area within the Duketon gold project in Western Australia.

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The company is co-funded for up to $220,000 for two diamond holes at the Ogilvies prospect and has elected to drill one of the EIS holes initially.

MD, Matthew Keane, said major gold deposits in the Duketon gold belt commonly occur directly on or in proximity to first-order structures.

The Golden Boulder area where Great Southern is now working sits within a prominent structural trend comprising several gold-bearing faults, including the interpreted first-order Rosemont Fault, which hosts several gold occurrences, including the Rosemont, Baneygo, Ben Hur, and Southern Star deposits.

GSN’s integrated datasets, including a reprocessed and reinterpreted Geoscience regional seismic line, indicate these first-order shears are mantle-tapping structures, capable of transmitting gold-bearing fluids from depth to surface.

The Western Australian explorer said gold deposition is favoured where these fluids encounter chemically reactive lithologies or dilation zones created by structural flexures. Fluid leakage from deeper deposits may generate surface anomalies along shear outcrops. This is witnessed in the Golden Boulder area, where there are approximately 50 historical gold workings and where GSN has identified at least three lines of mineralisation, namely the Main Line, East Line, and Ogilvies.

Major drilling programs at the Duketon gold project in 2026 are commencing with an initial 10,000m to 15,000m of RC at both Golden Boulder and Amy Clarke.

The drilling at Golden Boulder has largely been designed to infill and extend gold mineralisation defined in previous drill programs.

The RC drilling at Amy Clarke has been designed to test for both depth and strike extensions to significant intersections identified in previous aircore drill programs, the company explained this week. It is anticipated that the RC drill programs will now commence in late April to early May.

GSN closed Wednesday up +4.% to 2.6¢. Mkt cap $24.92M.

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