Dundas Minerals has extended interpreted gold mineralisation at Rockland to about 170 metres below surface, led by a 4-metre interval grading 4.87 g/t gold. The early results strengthen the geological case for a 1-kilometre mineralised trend, but one-metre verification assays and more drilling are still required.
- 4m at 4.87 g/t gold from 200m in hole 26RKRC011
- 12m at 1.25 g/t gold from 168m, including 4m at 2.18 g/t
- Interpreted shoots now extend about 170m below surface
- Three reported holes returned mineralised intervals
- One-metre assays remain pending for composite results
Rockland Drilling Reaches Deeper Gold
Dundas Minerals Limited (ASX:DUN) has pushed the interpreted Rockland gold shoots deeper below surface, with the first results from its current reverse circulation campaign returning a standout 4 metres at 4.87 g/t gold from 200 metres in hole 26RKRC011.
The same hole also intersected 12 metres at 1.25 g/t gold from 168 metres, including 4 metres at 2.18 g/t. Dundas says the new intervals extend the interpreted mineralised shoots to approximately 170 metres vertically below surface, beneath earlier drilling on the southern Rockland section near Kalgoorlie in Western Australia.
Three Holes Add Support to the Mineralised Trend
The result is not an isolated hit within the latest batch. Hole 26RKRC012 returned 8 metres at 0.93 g/t gold from 52 metres, while 26RKRC013 intersected three separate zones: 4 metres at 0.43 g/t from 104 metres, 4 metres at 0.50 g/t from 112 metres and 4 metres at 0.48 g/t from 164 metres. Dundas says those holes sit on the interpreted western margin of the mineralised corridor.
Results from an adjacent drill line around 150 metres to the north include the previously reported 4 metres at 1.28 g/t from 68 metres. Taken with earlier Rockland drilling, the new data support Dundas’ interpretation of a north-south trend extending across roughly 1 kilometre of strike. The mineralisation remains open along strike and down dip, according to the company.
Composite Assays Leave Grade Detail to Come
There is an important qualification behind the headline numbers: the 2026 results are based on four-metre composite samples. Dundas is submitting retained one-metre samples from mineralised intervals for individual assays, meaning the grade distribution within each reported interval has not yet been fully resolved. The reported lengths are downhole measurements, while true widths have not been confirmed, although the company interprets them as approximately representative of the mineralised widths.
Dundas also presented a historical result from Paddington hole TLRC042, including 5 metres at 5.52 g/t gold from 114 metres. The archival interval contains sharply variable one-metre assays, including 10.90 g/t and 13.70 g/t gold, as well as one metre at 0.08 g/t. Dundas says the historical result provides geological context near the new drilling but does not establish continuity with the 2026 intercepts. Its archival survey, sampling and quality-control records also carry limitations.
Further Drilling Across Three Gold Projects
The work forms part of a planned approximately 5,000-metre RC programme spanning Rockland, Capricorn and Baden-Powell. Dundas expects more Rockland assays shortly, followed by results from Capricorn and Baden-Powell through the December quarter, and says a follow-up Rockland programme is likely to be prioritised.
For shareholders, the immediate test is whether the one-metre assays preserve the apparent grade strength and whether follow-up holes demonstrate continuity between the interpreted shoots. Until then, Rockland has a deeper and more compelling exploration shape, but not yet a mineral resource estimate: Dundas states that the current drill spacing is insufficient for resource estimation.
Bottom Line?
The deeper intercepts improve Rockland’s exploration case, but the next one-metre assays and follow-up drilling will determine how much geological substance sits behind the composite headline grades.
Questions in the middle?
- Will the pending one-metre assays confirm the grades reported from four-metre composites?
- Can follow-up drilling establish continuity along the interpreted 1-kilometre trend and down dip?
- Will Rockland results ultimately support a resource definition programme, given current drill spacing?