Alkane is pleased to announce the latest exploration results and drilling for the underground expansion of existing resources at its Tomingley Gold Operations (Tomingley) in New South Wales, Australia.
Program Summary
- Exploration drilling at Tomingley has tested a seismic reflector feature beneath the Roswell Deposit and near-mine prospects such as El Paso. Underground drilling at Roswell, outside of grade control, has focused on improving confidence in the Inferred Resources.
- Roswell underground resources (1.3g/t Au cut-off) are estimated at 5.5Mt grading 2.6g/t Au for an endowment of 476,000 oz Au¹. A previous exploration drill hole (RWD061) was extended to 1,392m depth to intersect a seismic reflector identified ~400m below current resources. The drilling identified the east dipping reflector as gold-arsenic enriched hydrothermal breccias and veining.
- A program of underground drilling at Roswell targeting the Inferred Resources hosted by the Western Monzodiorite domain was completed. Results for this program testing the mid-portion of the domain to a nominal 15m x 20m grid spacing were received from the final 21 drill holes, totalling 4,019m. The program has confirmed multiple high-grade gold zones within the monzodiorite.
- Exploration drilling of 7 diamond core drill holes at the El Paso prospect and 1 RC drill hole at the Westray prospect. All drilling intersected quartz veining with gold-arsenic mineralisation, hosted in the prospective Mingelo Volcanic stratigraphy.
Assay Highlights
- Roswell Seismic target (RWD061):
- 8.7 m grading 1.15g/t Au including 3 m grading 2.78g/t Au
- 0.3 m grading 11.4g/t Au
- 2 m grading 5.90g/t Au
- Roswell Western Monzodiorite underground drilling:
- 5.9 m grading 31.0g/t Au including 2.1 m grading 78.4g/t Au (ROSUG657D)
- 17.4 m grading 4.30g/t Au including 2.5 m grading 21.1g/t Au (ROSUG644D)
- 3.5 m grading 16.1g/t Au including 1.2 m grading 45.1g/t Au (ROSUG425D)
- 0.6 m grading 69.2g/t Au (ROSUG656D)
- El Paso exploration drilling:
- 17 m grading 4.02g/t Au including 0.5 m grading 77.5g/t Au (EPD020)
- 8 m grading 2.10g/t Au (EPD020)
Alkane Managing Director & CEO Nic Earner said: “Our continuing exploration at Tomingley reveals both extensions to our deposits, which remain open at depth and along strike, as well as new areas of mineralisation. This drilling demonstrates the significant resource expansion potential across the mine site, we look forward to revealing this potential, both near mine and regionally around Tomingley.”
1. Refer to ALK Announcement dated 15 October 2025 titled NSW Resources and Reserves Statements FY25.