Aurelia’s Peak South copper‑gold shift: stope design and planning notes for engineers
Reviewed by Tom Sullivan
First reported on Australian Mining
30 Second Briefing
Aurelia Metals has intersected a new gold‑rich zone in previously “barren” ground between the Peak and Kairos lenses at its Peak South mine and extended two existing copper lenses, supporting a shift to copper‑gold ore. Recent drilling in the sparsely tested corridor returned 10m (8.5m estimated true width) at 1.3g/t gold, indicating additional mineralisation outside current resource models. For mine planners and geotechs, the results point to potential strike and depth extensions that could alter stope layouts, sequencing, and long‑term development priorities.
Technical Brief
- Aurelia’s new intercept lies in the corridor between the existing Peak and Kairos lenses.
- The previously “barren” zone had been only sparsely drill‑tested prior to the latest programme.
- New copper lens extensions sit within the Peak South underground footprint, potentially leveraging existing access and services.
- Reclassification of this ground from waste to ore could materially reduce planned development waste tonnages.
- Additional copper‑gold inventory in situ may justify re‑optimisation of stope shapes and crown pillar positions.
- Underground ground‑control regimes may need revisiting where new stopes abut or undercut current Peak/Kairos excavations.
- Ventilation and power reticulation layouts could be re‑balanced to prioritise deeper or lateral access towards the new zone.
Our Take
In our database of 1246 Mining stories, Aurelia Metals appears frequently in New South Wales copper–gold coverage, indicating that Peak, Kairos and Great Cobar are being advanced as a multi-asset pipeline rather than a single-mine story, which can help smooth grade variability between orebodies like Peak South.
The 10 m intercept with an estimated true width of 8.5 m at Peak South is consistent with underground mining widths already handled at Peak, implying limited need for major changes to existing stoping methods if this zone is brought into the mine plan.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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