G11’s Sedgwick Bluff Discovery Raises Stakes Near Historic Mt Lyell Mine

Discovery of a New Target

G11 Resources Limited has announced the identification of a new copper and gold drill target at Sedgwick Bluff in Tasmania, a site strategically located adjacent to the Mt Lyell Copper/Gold mine, one of the region’s most significant mineral operations. This target was delineated using Controlled Source Audio-frequency Magnetotellurics (CSAMT), a geophysical technique that can probe deep underground structures to about 1 kilometre depth and distinguish between copper sulphides and other minerals.

The newly modelled anomaly at the Zig Zag Hill area aligns with a major fold in the Great Lyell Fault, a geological feature known to facilitate mineralising fluid flow. This proximity to the Mt Lyell mine, which has a rich history of copper and gold production, adds considerable interest to the exploration potential of the site.

Strategic Location and Historical Context

Sedgwick Bluff lies within the Mt Read Volcanic belt, a world-class mineral province that hosts several significant mines including Mt Lyell, Henty, and Renison Bell. The region’s geology is characterised by Cambrian volcanic and sedimentary rocks with known epigenetic copper-gold mineralisation. Despite its mineral richness, the area has remained relatively underexplored due to access challenges.

G11’s exploration licence EL11/2025, recently acquired through the purchase of Pacific State Metals, covers this promising ground. The company is moving quickly to complete necessary environmental surveys and secure approvals from Mineral Resources Tasmania to commence drilling.

Next Steps and Exploration Plans

With the CSAMT anomaly now defined, G11 Resources is preparing to drill test the target once Flora and Fauna surveys are completed and regulatory approvals granted. The technical team is actively reviewing logistics and engaging with contractors in Tasmania to facilitate this next phase.

In addition to the Zig Zag Hill anomaly, G11 has identified other high-priority targets within the licence area, including the NE Pyrite zone, which will be subject to further analysis and potential drilling campaigns. The company also plans to undertake additional geophysical surveys such as electromagnetic and gravity studies, alongside surface geochemical sampling, to refine and expand its exploration footprint.

Implications for G11 and the Region

This announcement marks a significant step for G11 Resources as it leverages advanced geophysical techniques to unlock value in a historically mineral-rich but underexplored region. The proximity to the Mt Lyell mine, operated by Sibanye Stillwater, underscores the potential for meaningful discoveries that could enhance G11’s resource base and market position.

Moreover, Tasmania’s supportive mining environment, powered entirely by renewable energy, provides a favourable backdrop for sustainable exploration and development. The coming months will be critical as G11 advances towards drilling and further defines the potential of Sedgwick Bluff.