Zenith Minerals (ASX: ZNC) has expanded the footprint of its Red Mountain gold project in Queensland following substantial intercepts from the first three reverse circulation (RC) holes of the company's latest drilling program.
The results show higher grades emerging along a northwest-trending structural corridor, confirming the presence of a broad intrusion-related gold system.
Zenith said the assays provide important new insights into the geometry, continuity, and scale of the breccia-hosted mineralisation.
Standout Drilling Results
The program returned a standout intercept of 122 metres at 1.28 grams per tonne gold from 209m, including 55m at 2.18g/t gold and an individual 1m sample at up to 30.9g/t gold.
Adjacent drilling also returned 10m at 1.16g/t gold from 228m in ZRMRC069 and multiple mineralised intervals elsewhere, highlighting strong lateral continuity.
Managing director Andrew Smith said the results provided “a much clearer definition of the breccia architecture,” enabling the company to more effectively target the best-mineralised parts of the system.
The new intersections show gold grades increasing to the north as the rhyolite host unit thickens, suggesting proximity to a potential vertical feeder intrusion, with geological logging indicating the system is controlled by an arcuate, northwest-trending structure that remains open in multiple directions.
The results also confirm that the system displays strong similarities to major intrusion-related gold deposits across Queensland’s Auburn Arch region.
Second Lookalike Target
The company said a second lookalike target located 500m to the south shows the same northwest orientation and may represent either a separate breccia pipe or an offset continuation of the Red Mountain system.
Zenith noted that earlier induced polarisation data appear to map the mineralised corridor, with subtle chargeability features aligning closely with the rhyolite and breccia trends.
Seven RC holes totalling about 2,399m have now been completed, although the program ended early due to weather conditions, and the company has follow-up surface geochemistry and additional geophysical interpretation planned before first-pass drilling of this southern target.
Zenith will integrate RC and diamond drilling in the next phase, including diamond tails to extend one hole that ended in prospective breccia on the northern margin of the target corridor.
The company is also awaiting assay results for four remaining RC holes, along with multi-element data that will assist in vectoring toward the central higher-grade core.
