GSN Uncovers Shallow Gold Over 4.5km at Amy Clarke: What’s Next?
Great Southern Mining confirms significant shallow gold mineralisation over a 4.5-kilometre strike at its Amy Clarke prospect, with high-grade assays including 2m at 23.9 g/t Au. Follow-up drilling is planned for early 2026 to further delineate this promising discovery.
- Initial assays reveal shallow gold mineralisation over 4.5 km strike at Amy Clarke
- High-grade intercept of 2m at 23.9 g/t Au from 10m depth
- ~8,000m air-core drilling program underway with 4,500m assays pending
- Follow-up reverse circulation drilling scheduled for Q1 2026
- Concurrent 7,000m RC drilling at Golden Boulder discovery progressing
Amy Clarke Delivers Encouraging Early Results
Great Southern Mining Limited (ASX, GSN) has announced promising initial assay results from its recent air-core drilling campaign at the Amy Clarke prospect, part of the Duketon Gold Project in Western Australia. The program, spanning approximately 8,000 metres, has confirmed shallow gold mineralisation extending over a 4.5-kilometre strike length. Notably, a standout intercept of 2 metres grading 23.9 grams per tonne gold was recorded from just 10 metres depth, underscoring the prospect’s potential.
This latest drilling effort builds on previous work from 2021, which had already identified significant gold intercepts including 8 metres at 6.73 g/t Au. The current results reinforce the presence of a structurally complex, multi-phase orogenic gold system controlled by major shear zones within the Duketon Greenstone Belt.
Geological Context and Structural Insights
The Amy Clarke prospect lies within a high-strain structural zone characterized by intense deformation and sericitic alteration. Gold mineralisation is hosted in semi-fresh rock close to surface, a positive indicator for future resource development. The mineralisation occurs in quartz veins within shear zones, along lithological contacts, and at intrusive margins, reflecting multiple mineralising events and fluid pathways.
Surface geochemistry has defined a gold-bismuth-lithium-tungsten anomaly extending over 5 kilometres, aligned with known gold-bearing structures that also host Regis Resources’ nearby Erlistoun open pit mine. This regional setting adds strategic value to GSN’s tenure and highlights the prospect’s exploration upside.
Next Steps, Targeted Drilling and Resource Definition
With assays pending for over half of the air-core holes drilled, GSN plans to commence targeted reverse circulation (RC) drilling at Amy Clarke in the first quarter of 2026. This follow-up program aims to test higher-grade zones identified in the air-core results and better define the mineralised system at depth and along strike.
Simultaneously, a 7,000-metre RC drilling campaign is underway at the Golden Boulder discovery within the same Duketon project. Golden Boulder sits on a prolific structural trend hosting multiple gold deposits and historical workings. The current drilling aims to establish a maiden JORC Mineral Resource and extend mineralisation along strike.
Additionally, diamond drilling continues at the Edinburgh Park joint venture in Queensland, targeting high-grade gold veins, further diversifying GSN’s exploration portfolio.
Strategic Implications for GSN and the Duketon District
GSN’s methodical exploration approach at Amy Clarke is beginning to unlock significant shallow gold mineralisation in a region with established gold mining infrastructure. The proximity to Regis Resources’ Garden Well processing facility, just 8-10 kilometres away, could offer future logistical advantages if resource development proceeds.
While the current results are encouraging, the pending assays and upcoming drilling programs will be critical to confirming the scale and grade continuity of the mineralisation. Investors and analysts will be watching closely for updates that could shape GSN’s resource base and project valuation.
Bottom Line?
Amy Clarke’s expanding shallow gold footprint sets the stage for a pivotal drilling campaign in 2026 that could redefine GSN’s growth trajectory.
Questions in the middle?
- How will the pending assays from the remaining 4,500m of air-core drilling impact the overall mineralisation picture?
- What resource size and grade can GSN realistically target from the upcoming RC drilling at Amy Clarke?
- How might GSN’s discoveries at Amy Clarke and Golden Boulder influence its strategic positioning relative to nearby Regis Resources operations?