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Encounter Resources has reported a high-grade copper intersection at its Tyrell prospect in Western Australia, with new drilling identifying further exploration opportunities across the Yeneena copper project.
The results come from three diamond drill holes completed at the Parbo copper system in the Paterson Province, including the first hole drilled at Tyrell since 2014.
Hole EPT2431 returned 12.7m at 4.9 per cent copper (Cu) from 25.75m, within a broader intersection of 44m at 1.7 per cent Cu from 8.1m.
The result is among the thickest high-grade intersections recorded at Tyrell, which hosts an inferred mineral resource of 2.9 million tonnes at 0.79 per cent Cu.
Encounter managing director Will Robinson said the results reinforced the prospect’s exploration potential.
“This is an outstanding result from the first hole drilled at Tyrell in more than a decade,” Robinson said.
“It is one of the thickest high-grade intersections we have seen at Tyrell, and 12.7m at 4.9 per cent Cu is exceptional.”
The company has also identified a north-northeast-trending structural corridor extending approximately 3km between Tyrell and Maitland, which it believes could host further high-grade copper mineralisation.
At Maitland, drilling returned 10.6m at 0.3 per cent Cu from 204.15m, near an existing copper zone that remains open at depth.
The new geological interpretation has identified a priority copper sulphide target along strike of the high-grade copper oxide deposit at Tyrell.
Encounter is planning further drilling to test extensions at Tyrell and Maitland, as well as exploration at Griffin and Armstrong.
The company will also undertake preliminary metallurgical leach testing of copper oxide samples and incorporate the latest results into an ongoing strategic review of its copper portfolio.
“Maitland remains open down plunge and a key target for copper sulphide mineralisation has been identified along strike of the Tyrell high-grade copper oxide deposit,” Robinson said.
“Together with the copper oxide blankets at Griffin and Armstrong, these represent priority drill targets with potential for further high-grade copper discoveries.”
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