Rincon Resources' latest MobileMT survey at Telfer South reveals major undrilled geophysical targets aligned with high-grade gold-copper mineralisation, setting the stage for a significant 2026 drilling campaign.
- MobileMT survey identifies deep resistive zones below Hasties deposits
- New targets coincide with historic high-grade gold-copper surface samples
- Survey enhances geological model and guides upcoming drilling plans
- Project under farm-in JV with Greatland Resources
- Mineral Resource Estimate update expected after further drilling
MobileMT Survey Reveals Significant Undrilled Targets
Rincon Resources (ASX:RCR) has lifted the veil on fresh geophysical insights from its 100%-owned Telfer South Hasties Project, located just 10 kilometres south of the Telfer Gold Mine in Western Australia's Eastern Pilbara. A recently completed MobileMT airborne geophysical survey has detected highly resistive units more than 200 metres beneath the surface, aligned along the same strike as the known Hasties Main and Hasties SE gold-copper deposits. These targets remain untested by drilling, offering a compelling new frontier for exploration.
The standout resistive body, registering readings of 7500/1200 ohm.m, is interpreted to breach the surface near the Hasties Central prospect, where historic rock-chip samples have recorded exceptional grades up to 37 g/t gold and 21% copper. This correlation between geophysical data and surface mineralisation boosts confidence in the prospectivity of the Hasties Trend, which now extends over 1.1 kilometres in strike length and remains open for expansion.
Additional Targets at Padion and Beyond
Beyond Hasties Central, the survey uncovered a second resistive zone at the Padion prospect, positioned approximately four kilometres northwest of the Hasties Zone. This target aligns with previously identified surface geochemical anomalies, reinforcing its potential as a new gold-copper mineralised area. Two further smaller resistive zones have also been identified, all slated for ground truthing in the coming weeks.
This geophysical breakthrough dovetails with Rincon’s broader strategy following its farm-in and joint venture agreement with Greatland Resources (ASX:GGP), which covers over 200 square kilometres of exploration ground including the Telfer South tenements. The MobileMT data will be integrated with existing datasets to refine geological models and prioritise drill targets ahead of an anticipated RC drilling program in 2026.
Survey Design and Strategic Implications
The survey, conducted by Expert Geophysics Surveys Inc., spanned approximately 89 line-kilometres and was designed to image lithological contrasts, alteration systems, and structural controls on mineralisation to depths of up to one kilometre. The high-resolution dataset provides a robust framework for understanding the controls on mineralisation, including discrete conductive and resistive features that may represent sulphide accumulations or fluid pathways.
Rincon’s Technical Director, Michael Griffiths, highlighted the significance of the findings, noting that the new data adds a “new dimension” to the project and will inform upcoming drilling plans. He indicated that further geophysical work, including a close-spaced magnetic survey and expanded Induced Polarisation coverage, is planned to complement the MobileMT results.
Linking Historic High-Grade Results with New Targets
The recent survey findings build on Rincon’s validation of historic high-grade assays at Hasties, which revealed a broad gold-copper mineralised corridor with grades that have attracted investor attention. This follows the company’s earlier announcements confirming the strike extension of the Hasties Zone and the identification of the Padion prospect with assays up to 10.9 g/t gold and 1.5% copper, underpinning an expanding exploration footprint two new targets at Telfer South and extensive high-grade gold-copper zone. The integration of geophysical and geochemical data enhances the prospectivity and guides the planned 2026 drilling campaign.
The company’s Mineral Resource Estimate for the Hasties Gold-Copper deposit, last updated in February 2025, is expected to be revised once the new drilling and geophysical data are incorporated. The current resource includes an indicated and inferred total of approximately 870,000 tonnes grading 0.96 g/t gold and 0.26% copper at a 0.3 g/t gold cutoff.
Next Steps and Exploration Outlook
With the MobileMT data now fully acquired and undergoing detailed analysis, Rincon is poised to announce its 2026 drilling plans in the coming weeks. The company aims to systematically test the newly identified deep resistive targets, along strike extensions of the Hasties Zone, and the Padion prospect. Ground truthing of smaller resistive zones will also be a priority.
This geophysical advancement aligns with Rincon’s broader exploration approach, which combines methodical data acquisition and interpretation with targeted drilling to unlock the value of its Western Australian assets. The Telfer South Project remains a key focus, supported by the farm-in JV with Greatland Resources, and represents a significant opportunity to grow Rincon’s gold-copper resource base in a prolific mining region.
Bottom Line?
Rincon’s new geophysical targets at Telfer South deepen the exploration potential, but the real test lies in the upcoming drill program that will confirm whether these resistive zones host economic mineralisation.
Questions in the middle?
- Will the 2026 drilling confirm the depth extension of the Hasties gold-copper mineralisation?
- How might the new Padion and smaller resistive targets reshape Rincon’s exploration priorities?
- What impact will the updated Mineral Resource Estimate have on Rincon’s valuation and JV dynamics?