Australian Gold and Copper Uncovers Expansive Gold-Silver Trends at South Cobar

Landmark Aircore Drilling Program Completed

Australian Gold and Copper Ltd (ASX, AGC) has announced the completion of its most extensive aircore drilling program to date at the South Cobar Project in New South Wales. The campaign comprised 312 holes totaling over 11,000 metres, covering a 5-kilometre corridor along the Achilles Shear Zone. This large-scale effort aimed to map mineralised host rocks and identify geochemical pathfinder trends associated with the Achilles-style gold-silver-base metal mineralisation.

Emergence of Two Significant Gold-Silver Targets

The drilling results have unveiled two regionally significant gold-silver anomalies. The first is a 1.2-kilometre southern extension of the known Achilles trend, showing consistent multi-element anomalism including silver, gold, lead, zinc, copper, and other pathfinder elements. Notably, one hole returned 9 metres at 0.22 grams per tonne gold and 6 grams per tonne silver, comparable to mineralisation near the Achilles deposit itself.

The second target is a newly identified 2.0-kilometre gold-silver trend further south, characterized by broad multi-element anomalism indicative of a large-scale mineralised system. This target remains untested by deeper drilling but is considered highly prospective by the company’s exploration team.

Additional Copper and Base Metal Anomalies

Between these two gold-silver zones, aircore drilling has also detected copper and zinc anomalism coinciding with geophysical chargeability anomalies, suggesting potential for additional mineralisation types. Furthermore, a copper-bismuth anomaly in the northwest corner of the survey area aligns with magnetic and chargeability features, earmarked for future diamond drilling.

Reverse Circulation Drilling Underway

Building on the aircore results, AGC has recommenced reverse circulation (RC) drilling, focusing initially on the 1.2-kilometre southern extension of the Achilles trend. The first RC holes are positioned approximately 500 metres south of the existing deposit, aiming to intersect mineralisation beneath the strongest and shallowest anomalies identified in the aircore program. Successful intersections here could extend the Achilles deposit strike length to over 1.2 kilometres.

Geological Mapping and Future Exploration Focus

Recent petrological and lithogeochemical studies have confirmed that the host rocks associated with mineralisation at Achilles, laminated facies, fine volcanic, and pumice breccia, are key to localising metals. These lithologies have now been mapped continuously over 5 kilometres of strike and remain open for further extension both north and south. The company plans to prioritise these host rocks in upcoming drilling campaigns.

AGC’s Managing Director Glen Diemar highlighted the regional significance of the findings, noting the remarkable scale of gold, silver, and base-metal anomalism and the systematic approach to expanding the Achilles discovery. The company’s methodical drilling strategy and integration of geochemical and geophysical data position it well to unlock further value from the South Cobar Project.