Infini Eyes 5,000m Drill Test of District-Scale Uranium System in Newfoundland
Key Takeaways
- Infini Resources has expanded its Portland Creek Uranium Project exploration program to approximately 5,000m of diamond drilling supported by approximately 1,000m of trenching, a substantially larger commitment than previously contemplated.
- Three-dimensional magnetic inversion modelling has resolved, for the first time, the geometry of a large, structurally controlled hydrothermal uranium system across the 329 km² project in western Newfoundland.
- Trenching has already commenced, with diamond drilling scheduled to begin Q3 CY2026, making this the most substantial test of the Portland Creek system to date.
- Phase 2 drilling confirmed fracture-controlled uranium mineralisation including uraninite as fracture-fill, directly supporting the geological model underpinning the expanded program.
- The project sits within a 6 km zone of anomalous uranium and radon gas, with a historical peak soil sample of 74,997 ppm U₃O₈ at the Falls Lake Prospect.
Infini Resources has expanded its Portland Creek Uranium Project exploration program to approximately 5,000m of diamond drilling supported by approximately 1,000m of trenching, with trenching already commenced and drilling scheduled to begin Q3 CY2026. The substantially larger commitment follows completion of 2026 airborne surveys, field mapping, and a full reinterpretation of datasets across the 329 km² project in western Newfoundland, Canada.
Why the program was expanded: a district-scale target set emerges
Three-dimensional magnetic inversion modelling resolved, for the first time, the geometry of a magnetic destruction footprint developed along the project’s structural network. The Company interprets this as the mapped footprint of a large, structurally controlled hydrothermal uranium system.
Targeting is now directed at locations where four independent vectors coincide:
- Structural intersections: Where east-west and cross-cutting NNW–N–NNE structural sets meet, creating dilation and enhanced permeability
- Magnetic destruction boundaries: The interface between preserved magnetic anomalies and zones of magnetic destruction
- Uranium anomalism: Defined by rock sampling, ground radiometric traverses, and airborne radiometric data
- Complex fault architecture: Structural corridors where the interpreted fault network is most intricate
These datasets have transformed a series of surface uranium occurrences into a coherent, district-scale target set with defined geometry at depth. That shift in understanding drove the decision to scale the program beyond what was previously contemplated.
Rohan Bone, Chief Executive Officer
“The work completed over recent months has fundamentally sharpened how we see Portland Creek. Three-dimensional inversion of our 2026 magnetic data has resolved the geometry of an extensive magnetic destruction footprint, developed along the structural network rather than scattered through the granite. We interpret that as the mapped footprint of a large hydrothermal system, and it gives us something we have not had before — a target set with defined three-dimensional geometry.”
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What Phase 2 drilling confirmed
Phase 2 diamond drilling confirmed fracture-controlled uranium mineralisation, including uraninite as fracture-fill associated with chlorite-hematite alteration. This supports the Company’s exploration model for Portland Creek as a structurally controlled, granite-hosted hydrothermal uranium system.
While no new results are reported in the current announcement, the confirmation of mineralisation style de-risks the geological model underpinning the expanded program. The hematite-dominated alteration assemblage, together with the extent of magnetic destruction adjacent to interpreted structures, indicates a significant oxidising hydrothermal system within the Long Range Complex.
Understanding structurally controlled uranium systems
A structurally controlled uranium system forms where faults create permeability pathways through which hot, mineral-bearing fluids move. When those fluids encounter the right chemical conditions, uranium deposits.
Magnetic destruction occurs when magnetite (a magnetic iron oxide mineral) converts to hematite (a non-magnetic iron oxide) through oxidising hydrothermal fluid flow. This conversion leaves a detectable “footprint” in geophysical data, flagging zones where oxidising fluids moved through the rock, which are favourable for uranium deposition.
When multiple independent datasets — structural intersections, magnetic destruction boundaries, uranium anomalism from surface sampling, and complex fault architecture — coincide, the odds of successful drilling increase. For a pre-resource explorer like Infini, targeting where these signals overlap is a risk-management priority.
Portland Creek at a glance
| Metric | Detail |
|---|---|
| Project size | 329 km² |
| Location | Long Range Complex, western Newfoundland, Canada |
| Peak soil sample (historical) | 74,997 ppm U₃O₈ |
| High-grade soil anomaly | ~800m x 100m (Falls Lake Prospect) |
| Original NMDI showing | 2,180 ppm U₃O₈ |
All grade figures in the table represent historical or prior-reported context, not new results.
The project area covers a large regional uranium anomaly first identified in the 1970s through a Newfoundland government lake sediment sampling program. A compilation of historic and recent exploration data have since delineated a 6 km zone of anomalous uranium and radon gas in lake sediments, soils, and airborne radiometric surveys. This anomaly closely follows a prominent fault scarp, marking the edge of a granitic plateau interpreted as a deep-seated fault.
Program underway and next steps
Trenching has commenced at Portland Creek and represents the first systematic excavation undertaken on the project. The program is designed to test priority targets at surface, expose bedrock for channel sampling, and collect structural orientation measurements required to constrain drill designs.
Key upcoming activities include:
- Mobilisation of CMG (geological services) and Rodren Drilling (drilling contractor) to Portland Creek
- Completion of the ~5,000m diamond drilling program across the defined target set, scheduled to begin Q3 CY2026
- Completion of the ~1,000m trenching program, including structural measurement and channel sampling of in-place bedrock
- Reporting of laboratory assay results from 2026 rock sampling and trench channel sampling programs on completion of validation and compilation of datasets
The expanded drilling program represents the most substantial test to date of a district-scale, structurally controlled hydrothermal uranium system within the Long Range Complex of western Newfoundland, an area the Company considers materially underexplored for uranium.
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The investment thesis
Infini is advancing from surface occurrences to a defined, drill-ready district-scale target set, backed by a substantially larger program and confirmed mineralisation style. The ~5,000m drilling program supported by ~1,000m of trenching targets the confluence of structural intersections, magnetic destruction boundaries, and uranium anomalism, with drilling scheduled to commence Q3 CY2026.
The Company holds a diversified portfolio spanning uranium and lithium projects in Canada and Western Australia, including the Des Herbiers Inferred Resource of 162 Mt @ 123ppm U₃O₈ (43.95 mlb). The expanded drilling program represents the most substantial test to date of the district-scale, structurally controlled hydrothermal uranium system at Portland Creek, with the scale and continuity of the interpreted hydrothermal system at depth considered a significant positive indicator of size potential.
Want to Follow Infini’s Drilling Program at Portland Creek?
Infini Resources has scaled its Portland Creek exploration commitment to approximately 5,000m of diamond drilling supported by approximately 1,000m of trenching, following completion of three-dimensional magnetic inversion modelling that resolved the geometry of a district-scale hydrothermal uranium system. Trenching has commenced, with drilling scheduled to begin Q3 CY2026.
The Company is targeting structural intersections where four independent datasets coincide: structural intersections, magnetic destruction boundaries, uranium anomalism, and complex fault architecture. To stay updated on drill results, assay data, and project developments as the program advances, visit the Infini Resources investor centre.