Trigg Minerals Unveils District-Scale Antimony Discovery with High-Grade Targets in Utah
Trigg Minerals has revealed a major geological breakthrough at its Antimony Canyon Project, redefining it as a district-scale high-sulfidation epithermal system with multiple high-grade drill targets within patented claims.
- New geological model reinterprets Antimony Canyon as a district-scale epithermal system
- CSAMT survey identifies multiple shallow, high-priority drill targets at 50-100m depth
- High-grade antimony channel samples up to 33.2% Sb confirm fertile mineralisation
- Stacked mineralised layers increase tonnage potential and improve development geometry
- Permitting and logistics underway to enable imminent drilling in a Tier-1 US jurisdiction
Geological Breakthrough Redefines Project Potential
Trigg Minerals Limited (ASX – TMG) has announced a transformative reinterpretation of its 100%-owned Antimony Canyon Project in Utah, USA. Independent geological consultancies Dahrouge Geological Consulting USA Ltd. and MineOro Explorations LLC have jointly validated a new model that classifies the project as a district-scale, high-sulfidation epithermal system. This marks a significant departure from the historical view of the area as a collection of small, isolated mines, instead positioning it as a large, coherent mineralised system with substantial exploration upside.
The breakthrough hinges on identifying a distinct volcanic host rock unit; a welded crystal-lithic ash-flow tuff; that controls the distribution of antimony mineralisation. This host rock contains multiple stacked, sub-horizontal mineralised layers, dramatically increasing the volume of prospective material and enhancing the project's tonnage potential.
Geophysical Survey Highlights Shallow Drill Targets
Complementing the geological reinterpretation, Trigg has completed a Controlled-Source Audio-Frequency Magnetotellurics (CSAMT) geophysical survey across its patented claims. Initial inversions of the data reveal multiple shallow, high-priority targets at depths between 50 and 100 metres, situated beneath and along strike from historic high-grade workings such as the Emma-Albion and Gem mines.
The CSAMT results delineate a shallow, conductive clay-altered zone overlain by a resistive silica-hardened cap, interpreted as the outflow zone of a deeper hydrothermal system. A deeper, fault-bounded resistive core likely represents the hot-fluid feeder zone, providing a structural framework that guides future drilling efforts.
High-Grade Sampling Validates Mineralisation Model
Systematic channel sampling within the patented claims has returned impressive grades, including a standout 1.5-metre interval assaying 33.2% antimony. Other prospects such as the Stebenite and Little Emma mines have yielded consistent high-grade results, reinforcing the presence of a fertile epithermal system. Elevated pathfinder elements like arsenic and mercury further support the interpretation of a magmatically driven hydrothermal environment.
Strategic Advantages and Next Steps
Crucially, the major mineralised zones lie within Trigg’s patented claims, which simplifies permitting and could accelerate the timeline to drilling and development. The company has initiated the permitting process with the Utah Division of Oil, Gas, and Mining and is preparing access upgrades for drill rig mobilisation.
Looking ahead, Trigg plans to integrate additional geophysical techniques such as induced polarisation surveys and UAV-based magnetic surveys to refine drill targets. Detailed field mapping and spectral mineralogy will complement these efforts, aiming to pinpoint the most prospective zones within the structural corridor.
Managing Director Andre Booyzen emphasised the strategic importance of the discovery – “Antimony is critical for defence and energy transition technologies, yet the US currently lacks significant domestic production. Our breakthrough at Antimony Canyon positions the project as a highly strategic asset with the potential to become a major new source of American antimony.”
Bottom Line?
With a robust geological model and drill-ready targets secured within patented claims, Trigg Minerals is poised to unlock significant value from Antimony Canyon in the coming months.
Questions in the middle?
- How will upcoming drilling validate the continuity and grade of the stacked mineralised layers?
- What are the timelines and potential hurdles for obtaining full drilling permits on patented claims?
- Could the project’s scale and grade support a commercially viable antimony operation in the near term?
