White Cliff Minerals has expanded the Danvers copper system at its Rae Project, intersecting more than 70 metres of copper sulphides in its first diamond drill hole, refining the geological model and extending the mineralised footprint by 50 metres northeast.
- Maiden diamond drill hole intersects 73m copper sulphides
- Mineralised footprint extended 50m northeast at Danvers
- Key breccia horizon identified controlling high-grade copper
- Assay results confirm significant copper intercepts up to 19.8m @ 0.72% Cu
- Ongoing drilling targets high-grade zones along Teshierpi Fault Zone
Diamond Drilling Unveils Extensive Copper Sulphide Mineralisation
White Cliff Minerals (ASX:WCN) has revealed compelling progress at its Rae Copper Project with the first diamond drill hole at the Danvers copper system intersecting over 73 metres of copper sulphide mineralisation. The maiden hole, DAN26025, strategically drilled near a previous high-grade intercept of 19.81m at 6.64% copper, has expanded the known mineralised footprint by approximately 50 metres to the northeast.
This broad zone is dominated by chalcocite and bornite, copper sulphides renowned for their high copper content and favourable metallurgical properties. Their presence reinforces the project’s potential for high-grade copper mineralisation with promising recoverability.
Structural Controls Sharpen Exploration Focus
Drill core observations from DAN26025 have isolated a key breccia horizon within the Teshierpi Fault Zone. This horizon hosts chalcocite-calcite cement within crackle and mosaic breccias, acting as a structural and permeability-controlled trap for copper precipitation. The identification of this mineralised horizon provides a clearer geological target for follow-up drilling along strike and at depth, enhancing the company's ability to vector towards high-grade zones.
Managing Director Troy Whittaker highlighted that the drilling not only expanded the mineralised footprint but materially improved understanding of the system’s architecture. With multiple assays pending from recent drill holes testing growth to the north and northeast, White Cliff sees strong near-term potential to grow the system further.
Assay Results Extend Danvers 1 Footprint
Recent assay results from reverse circulation drilling continue to confirm copper mineralisation over a broad area. Drillhole DAN26020, located 550 metres from the main Danvers 1 zone, returned 19.81 metres at 0.72% copper, including higher-grade sub-intervals of 1.53 metres at 2.39% copper and 3.05 metres at 1.11% copper. This extends the Danvers 1 mineralised footprint southwest by 218 metres, now spanning over a kilometre in strike length.
Other drillholes in the regional campaign returned lower-grade copper intercepts, but collectively these results demonstrate a sizeable copper system along the Teshierpi Fault Zone. The ongoing diamond drilling campaign is designed to infill and expand these findings with oriented core providing critical structural data.
Emerging District-Scale Copper System
White Cliff’s Rae Project hosts multiple copper occurrences, including the historic Danvers resource estimated at 4.16 million tons at 2.96% copper, though this estimate is not JORC compliant and requires further validation. The current drilling campaign is rapidly expanding the footprint of known mineralisation, with recent results confirming a growing, high-grade copper system extending over several kilometres.
The project also includes the Hulk sediment-hosted copper deposit, where visible copper sulphides have expanded the mineralised area to 6.3 square kilometres. White Cliff is now focusing on vectoring towards the core of these systems, targeting stronger alteration and bornite-rich mineralisation supported by geophysical anomalies.
Next Steps and Market Implications
Drilling is on track to complete the Phase 1 regional spaced campaign across a 12,000-metre strike by July, with diamond drilling continuing to infill and test high-grade copper zones. Assay results from key step-out holes remain pending, and their release will be critical to assessing the full scale and grade continuity of the system.
White Cliff’s approach of combining detailed geological observations with targeted diamond drilling is sharpening the exploration focus along the Teshierpi Fault Zone. The identification of a structural breccia horizon as a mineralisation control is a significant step forward in understanding the system’s architecture and potential.
Bottom Line?
White Cliff Minerals’ diamond drilling breakthrough at Danvers sharpens the target for high-grade copper, setting the stage for potentially transformative resource growth pending upcoming assay results.
Questions in the middle?
- Will pending assays from northern step-out holes confirm further expansion of the Danvers system?
- How will the new breccia horizon model influence drilling strategies and resource estimation?
- What metallurgical characteristics will the bornite and chalcocite-rich zones exhibit in processing tests?