Encounter’s high-grade copper at Tyrell: targeting and modelling notes for planners
Reviewed by Tom Sullivan

First reported on Australian Mining
30 Second Briefing
Encounter Resources has reported a high-grade copper intersection at the Tyrell prospect within its Yeneena copper project in Western Australia, from three diamond drill holes targeting the Parbo copper system in the Paterson Province. The campaign included the first hole drilled at Tyrell since 2014, confirming mineralisation continuity and opening up step-out drilling options along strike and at depth. For geologists and mine planners, the result strengthens the case for a district-scale sediment-hosted copper system warranting tighter drill spacing and updated structural models.
Technical Brief
- Three diamond core holes were completed into the Parbo copper system during the latest campaign.
- Drilling targeted sediment-hosted copper within the Yeneena Basin stratigraphy of the Paterson Province.
- Core orientation from the diamond holes will allow refinement of structural controls on the Parbo system.
- Step-out hole planning will likely focus on testing both lateral continuity and down-dip extensions of the copper horizon.
- New intersections at Tyrell provide an additional vector for prioritising follow-up drill pads and access tracks.
Our Take
Encounter Resources is simultaneously advancing copper at the Yeneena–Tyrell/Parbo area and at the Jessica copper project with South32, which in our database signals a deliberate spread across both sediment-hosted and IOCG-style copper systems in Australia.
The earlier work defining multiple shallow copper oxide blankets at the Parbo system suggests that any high-grade hits at Tyrell could be rapidly tested for near-surface, open-pittable potential rather than being purely a deeper sulphide play.
Within our 1264 Mining stories, Encounter’s presence across copper in the Paterson Province and niobium at West Arunta positions it among the more diversified WA explorers, which can make it more resilient to commodity-specific exploration downturns.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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