Yandal Resources (ASX:YRL) has confirmed ‘high-grade’ gold mineralisation continues at depth within the Arrakis Discovery at its Ironstone Well-Barwidgee Gold Project in Western Australia.
Drilling completed four diamond holes with reverse circulation (RC) pre-collars across the Arrakis Prospect in May.
Significant intercepts include 11.5m @ 1.60 grams per tonne gold (Au) from 347.6m in hole 26IWBRC0066D and 18.0m @ 1.80g/t Au from 290.0m in 25IWBRC0050D.
These results validate the presence of a steep, plunging ‘high-grade’ domain of mineralisation to the south between 6050mN and 6200mN, with an approximate 100–150m strike length.
Drilling also demonstrates ‘significant’ gold mineralisation at depth on the 6550mN section, below an interpreted cross-cutting shear zone.
“Our diamond drilling program has very successfully demonstrated that the Arrakis mineralised system remains open at depth, with several intercepts demonstrating a now familiar style of high-grade mineralisation more than 250m from surface,” Managing Director Chris Oorschot says.
“Of particular significance is […] 26IWBRC0066D, where both high-grade and broader low-grade mineralisation was intercepted below an interpreted shallow-dipping shear zone associated with lower-grade mineralisation.”
Results from 26IWBRC0066D confirmed mineralisation continues below an interpreted shear zone first identified in diamond hole 25IWBDD0012. This observation has broader implications for the discovery, as the shallow-dipping shear zone likely interacts with the broader mineralised system.
Additional intercepts include 21.7m @ 0.80g/t Au from 366m in 26IWBRC0066D, including 4m @ 2.10g/t Au from 370m, and 10.2m @ 1.30g/t Au from 240.8m in 26IWBRC0068D, including 3.8m @ 2.90g/t Au from 242.3m.
Results from 25IWBRC0050D continue to support the presence of a ‘higher-grade’ mineralised domain with a possible sub-vertical plunge adjacent to the interpreted Scytale shear zone to the south, remaining open at depth.
Yandal Resources expects further results from extensional RC drilling to the southeast and targeted close-spaced drilling soon. An exploration target for Arrakis is expected in late July.
A ground gravity survey has been completed across the IWB project, infilling and expanding datasets acquired in 2024 and 2025, to refine structural interpretations and generate new early-stage exploration targets.
Write to JC Villarba at Mining.com.au
Images: Yandal Resources
