Auravelle Metals Drills Five Gold Targets Along 1.6Moz Structural Corridor
Key Takeaways
- Auravelle Metals (ASX: AUV) has commenced a ~3,500m aircore drilling program at Nuckulla Hill in South Australia, with assay results expected mid to late October 2026.
- The program tests five targets — Sheoak North, Myall, Sauna, Bimba West, and Bimba North — all sitting along the Yarlbrinda Shear Zone, the same structure that hosts Barton Gold's 1.6 million ounce Tunkillia Gold Project.
- Sheoak North and Myall are the priority targets, sitting along strike of the existing Sheoak prospect within a 3.5km zone of gold anomalism.
- The aircore program is designed as a capital-efficient first pass to de-risk multiple targets before a more intensive RC drilling phase at Sheoak, Sheoak East, and Bimba, scheduled for early October 2026.
- Auravelle has a packed near-term newsflow calendar, with soil sampling results from Crown (WA) and Skye projects also expected before the end of September 2026.
Drilling under way at Nuckulla Hill as Auravelle chases gold along the Yarlbrinda Shear Zone
Auravelle Metals (ASX: AUV) has commenced aircore drilling at its Nuckulla Hill Gold Project in South Australia, kicking off a discovery-focused program that puts the company’s highly prospective structural corridor to the test. The approximately 3,500m program is expected to take 7 to 10 days, with assay results anticipated mid to late October 2026.
The program targets the Yarlbrinda Shear Zone, the same controlling geological structure that hosts Barton Gold Holdings’ (ASX: BGD) neighbouring Tunkillia Gold Project, which carries a resource of 1.6 million ounces of gold. Auravelle’s drilling does not test Tunkillia itself, but the shared structural setting establishes the geological rationale for why this corridor is considered prospective.
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Five targets in focus along an underexplored structural corridor
The aircore program is testing five distinct targets: Sheoak North, Myall, Sauna, Bimba West, and Bimba North. All five prospects have coincident gold and silver geochemical anomalism and are proximal to interpreted lithostructural targets, meaning the chemistry and the geology both point to the same locations as worth testing.
The most significant detail for the investment case is that Sheoak North and Myall sit along strike of the existing Sheoak prospect, within a 3.5km long zone of gold anomalism. Figure 2 from the announcement (the Myall to Sheoak Prospects map) illustrates this trend clearly, showing drill collars, the anomalous gold corridor, and the structural setting that connects these targets.
Beyond these two priority targets, large portions of the Yarlbrinda remain either untested or have received only minimal follow-up drilling. That is the opportunity Auravelle is positioning itself to capture.
Andrew Muir, Managing Director, Auravelle Metals Limited
“We are pleased to commence our next round of drilling at Nuckulla Hill, testing these early-stage targets. Large areas of the Yarlbrinda remain untested or have had little to no follow-up drilling. This program will test some of those areas, which is an exciting opportunity given the prospectivity of the Yarlbrinda and its potential to host large gold deposits.”
What aircore drilling is and why it matters for junior gold explorers
Aircore drilling is a fast, relatively low-cost method that uses compressed air to bring rock chips to the surface for sampling. It is well suited to wide, open terrains where the goal is to efficiently test large areas for geochemical signals before committing significant capital.
The key distinction from RC (Reverse Circulation) drilling is one of purpose. Aircore is a first-pass tool, designed to cover ground and identify where gold anomalism exists. RC drilling goes deeper and delivers better sample quality, making it the method of choice once you know where to look.
The sequencing Auravelle is following is a textbook capital-efficient exploration strategy: use aircore to de-risk multiple targets quickly, then deploy the more expensive RC drill rig only at the locations that earn it. This approach reduces the risk of wasting capital on uninformed RC programs and gives the company a clearer picture of where the real targets lie before escalating its commitment.
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What comes next: a packed exploration calendar through October
The Nuckulla Hill aircore program is the first of several near-term catalysts. Auravelle’s Looking Forward section outlines a busy schedule of newsflow across its project portfolio between now and early October 2026.
| Project | Activity | Expected Timing |
|---|---|---|
| Nuckulla Hill (SA) | Regional aircore drilling | Underway |
| Crown (WA) | Results from recent soil sampling | Coming weeks |
| Skye | Results from first-pass soil sampling to define drill targets | Late September 2026 |
| Nuckulla Hill (SA) | RC drilling at Sheoak for infill and extension | Early October 2026 |
Critically, the current aircore program is the precursor to a more intensive drilling phase. Once aircore is complete, Auravelle plans to move directly into RC drilling at Nuckulla Hill, targeting infill and extensional drilling at Sheoak, Sheoak East, and Bimba. What starts as a discovery program is designed to feed directly into a more advanced resource-definition phase within weeks.
For investors wanting to track how this program fits into Auravelle’s evolving exploration thesis, our detailed coverage of high-grade gold expansion at Nuckulla Hill walks through the prior drilling results at Sheoak and the resource-definition work that preceded this aircore campaign.
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