Barton Gold Unveils High-Grade Silver and Gold at Tolmer, Eyes 2026 Drilling
Barton Gold Holdings has released compelling diamond drilling results from its Tolmer prospect, confirming a structural model akin to its Perseverance Mine and revealing significant silver and gold grades. The company plans further drilling in 2026 to explore promising extensions.
- Diamond drilling confirms structural similarity to eastern Tarcoola goldfield
- High-grade assays include up to 465 g/t silver and 20.2 g/t gold
- Western silver zone extended with new soil and drilling data
- Three recent holes in eastern gold zone reveal key mineralisation controls
- Follow-up drilling planned for first half of 2026 targeting extensions
Context and Significance
Barton Gold Holdings Limited has announced new assay results from diamond drilling at its Tolmer prospect, part of the Tarcoola Gold Project in South Australia. These results not only confirm the local structural model but also reveal high-grade silver and gold mineralisation that could materially enhance the project's economic potential.
The Tolmer prospect lies within the broader Tarcoola goldfield, where Barton operates the Perseverance Mine. The recent drilling has demonstrated geological parallels to the eastern portion of this historic goldfield, providing confidence in the continuity and controls of mineralisation.
Key Assay Highlights
The diamond drilling program, comprising three holes totaling nearly 600 meters, focused on the eastern gold zone to better understand structural and stratigraphic controls. Notable assay results include silver grades peaking at 465 grams per tonne and gold grades reaching 20.2 grams per tonne over narrow intervals. These high-grade intersections are complemented by broader zones of gold mineralisation, such as a 15.25-meter interval averaging 4.84 g/t gold.
In the western silver zone, previous drilling had already identified exceptionally high silver grades, with peaks up to 17,600 g/t silver and 51.2 g/t gold near surface. Recent soil sampling and drilling have extended this mineralised footprint, suggesting the presence of dual mineralised horizons and potential for further discoveries.
Structural Insights and Geological Interpretation
Preliminary geological analysis of the new drill cores indicates a steeply dipping fault and deformation zone consistent with a sinistral shear system trending north-northeast. This structural corridor hosts quartz-pyrite-galena-sphalerite veins carrying both gold and silver, alongside lead and zinc mineralisation. The presence of discrete silver-rich intervals alongside gold suggests complex mineralising events or zoning within the system.
These findings align with the structural framework observed at the Perseverance Mine, reinforcing the prospectivity of the Tolmer area and guiding future exploration efforts.
Next Steps and Market Implications
Barton Gold plans to integrate these drilling results with recent aircore, reverse circulation, and soil sampling data to refine its geological models. The company anticipates follow-up drilling in the western silver zone during the first half of 2026, aiming to delineate extensions of the high-grade mineralisation and unlock further value.
Given the scale and grade of mineralisation identified, the Tolmer prospect could become a significant contributor to Barton’s regional development strategy, complementing its existing assets and potentially boosting its resource base.
Bottom Line?
Tolmer’s promising assay results set the stage for a pivotal 2026 drilling campaign that could reshape Barton Gold’s growth trajectory.
Questions in the middle?
- Will further drilling confirm the continuity and true widths of the high-grade silver and gold zones?
- How might the dual mineralised horizons impact the overall resource estimation and mining strategy?
- What are the potential timelines and capital requirements for advancing Tolmer towards production?
