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Highlights:
Yandal Resources identifies continuous gold mineralisation within the New England Granite at Siona
A major air-core drilling campaign is scheduled at the Caladan target within the Yandal Greenstone Belt
Structural insights support exploration across multiple zones, including Salusa and western NEG margin
Yandal Resources Ltd (ASX:YRL), listed on the S&P/ASX 300 index, operates within the mineral exploration sector, focusing on gold projects in Western Australia's renowned Yandal Greenstone Belt. The company has confirmed the continuity of broad gold mineralisation zones at the Siona Discovery, part of its Ironstone Well–Barwidgee Gold Project. This area lies within the New England Granite (NEG), a promising geological formation within the broader belt.
Siona Drilling Reveals Gold-Bearing Quartz Veins
Recent diamond drilling at the Siona site has highlighted consistent gold mineralisation across multiple intercepts. While low-grade values were predominant, several high-grade intercepts were also identified. The program comprised four new diamond holes and two extensions aimed at exploring depth continuities below previously recorded high-grade reverse circulation results. Notably, the presence of visible gold hosted in quartz veining strengthens the geological interpretation of the mineralisation pattern.
Understanding Geological Controls on Mineralisation
According to updated interpretations, gold mineralisation at Siona correlates with deformation within the granodiorite host rock. Key structural zones, particularly shear zones and intersections, are believed to influence mineral deposition. Observations from both reverse circulation and diamond core samples reveal a connection between mineralisation and alteration styles dominated by quartz veining, silica-sericite-pyrite associations, and visual gold indicators.
Air-Core Campaign Set for Caladan and Broader NEG
With the diamond drilling phase now completed, Yandal Resources has shifted focus to air-core methods to cover broader targets more efficiently. A large-scale air-core program has been planned for the Caladan target, located within the same granodiorite unit. The refined structural model developed from the Siona discovery will serve as the framework for testing key areas of deformation across the granodiorite body.
Upon completion at Caladan, the air-core rig will be mobilised to the NEG to begin exploratory work at other structural sites. These include the Salusa Prospect and additional zones positioned along the western margin of the intrusive body. These targets have been prioritised based on structural mapping and gold indicators derived from earlier drilling.
Heritage Survey and Structural Targeting Progress
Preparations are underway for heritage surveys to support additional drilling access across the NEG in the coming weeks. These efforts align with Yandal Resources’ strategy to increase geological understanding and broaden exploration coverage throughout its project tenure. The refined structural targeting approach will allow the company to assess new zones with geological settings similar to those observed at Siona.
Ongoing Program Funding and Timeline
Yandal Resources Ltd remains adequately funded to support its ongoing exploration programs, including the upcoming air-core campaign. Initial results from the Caladan program are anticipated to be available during the middle stages of the year, followed by progressive exploration across the broader NEG area throughout the later months.
