Antipa Extends Gold-Copper Zone Over 1km Above Untested Telfer-Style Conductor
Key Takeaways
- Antipa has confirmed gold±copper±lead±silver mineralisation in five RC holes across approximately 1km of strike at Tim's Dome, with the standout hole 26XTDC0060 returning 10m at 1.5 g/t gold including 1m at 10.1 g/t gold from 242m.
- Diamond core tails have commenced on select RC holes to directly test the large AEM conductor — measuring ~1.2km long and 200–470m wide — sitting 270–340m below surface and never previously drilled.
- Tim's Dome sits 11km from Greatland Resources' Telfer mine, an 8Moz gold / 370kt copper deposit, with the geology, metal association, and conductor geometry all supporting a Telfer-style reef interpretation.
- The Phase 1 CY2026 programme is fully funded from existing cash and WA Government EIS grants — including an A$180k EIS grant for Tim's Dome diamond drilling — with 290 of 321 planned holes completed and no capital raise disclosed.
- Beyond Tim's Dome, Batch 3 results extended anomalism at AL01, Yolanda Trend (copper anomaly now ~2.1km along strike, zinc ~5km), and GEO-01 Main Zone, against a backdrop of a 2.9Moz gold Minyari Project total Mineral Resource advancing toward Pre-Feasibility Study completion.
Antipa extends gold-copper mineralisation over 1km of strike as diamond drilling targets large Tim’s Dome conductor
Antipa Minerals has confirmed further gold±copper±lead±silver mineralisation across approximately 1km of strike at its Tim’s Dome target, sitting directly above a large, untested airborne electromagnetic (AEM) conductor. Diamond core tails have now commenced on select reverse circulation (RC) holes to directly test the conductor, marking the key near-term catalyst for the 100%-owned 4,500km² Minyari Gold-Copper Project in Western Australia’s Paterson Province.
The announcement covers 81 drill holes for 7,819m across Tim’s Dome, GEO-01, AL01, and the Yolanda Trend. Three rigs remain active at Tim’s Dome, Minyari Dome, and Jezabeel as the company advances its Phase 1 CY2026 programme — 321 holes for 41,000m planned, 290 holes for 33,091m completed to date.
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Tim’s Dome firms as a priority Telfer-style reef target
Tim’s Dome has returned gold±copper±lead±silver mineralisation in five RC holes over approximately 1km of strike, all positioned directly above a large AEM conductor that remains untested beneath the limit of current RC drilling. The conductor measures ~1.2km long, 200m–470m wide, dips parallel to bedding, and sits ~270m–340m below surface.
The standout hole, 26XTDC0060, reached within 60m of the western edge of the conductor and returned strong arsenic±antimony pathfinder anomalism in its lower portion — a recognised distal signature of intrusion-related, Telfer-style mineral systems. Maximum 1m Batch 3 grades included 10.05 g/t gold, 0.62% copper, 0.12% lead, and 2.55 g/t silver.
Tim’s Dome sits on the northwest strike continuation of the Telfer domal fold structure, 11km from Greatland Resources’ Telfer gold-copper-silver mine and processing facility. The geology, metal association, and conductor geometry all support the Telfer-style reef interpretation now being drill-tested.
Key Tim’s Dome Batch 3 intersections
- 10m at 1.5 g/t gold from 242m in 26XTDC0060, including 1m at 10.1 g/t gold from 243m
- 22m at 0.4 g/t gold from 213m in 26XTDC0060
- 10m at 0.8 g/t gold from 171m in 26XTDC0060, including 2m at 3.2 g/t gold from 176m
- 25m at 0.5 g/t gold from 137m in 26XTDC0046, including 1m at 1.0 g/t gold from 139m, and 4m at 1.2 g/t gold from 144m
- 39m at 0.13% copper from 171m in 26XTDC0067
Roger Mason, Managing Director
“Batch 3 results have further strengthened Tim’s Dome as one of our priority new discovery targets. We’ve now confirmed gold-copper-lead-silver mineralisation in a further five holes spread over more than a kilometre of strike, directly above the large AEM conductor that remains untested. The geological setting, metal association and geometry of the conductor continue to support the Telfer-style reef interpretation we are currently about to test, with diamond tails on several select RC holes now underway. We expect to reach the AEM conductor target in the coming weeks, and will eagerly await results.”
What a Telfer-style reef target means for investors
A “Telfer-style reef” refers to bedding-parallel high-grade gold-copper zones that form where steep ore-fluid conduit structures intersect reactive rock layers, preferentially along the fold axis and eastern fold limb of domal structures. These reefs are a characteristic feature of the Telfer deposit, 8 million ounces of gold and 370,000 tonnes of copper, located 11km from Tim’s Dome.
An AEM (airborne electromagnetic) conductor is a geophysical anomaly that can indicate sulphide-bearing mineralisation at depth. In this case, the Tim’s Dome conductor has never been tested by drilling. Lead anomalism and pathfinder elements (arsenic and antimony) detected in the RC drilling are recognised distal signatures of intrusion-related, Telfer-style mineral systems — meaning the drill holes may be intersecting the outer halo of a larger system beneath.
Telfer is an 8Moz gold / 370kt copper deposit 11km away. Proving a similar system beneath Tim’s Dome would be a company-transforming discovery. The tone here is factual: the geophysical and geochemical data support the reef interpretation, but the conductor remains undrilled. Diamond tails are now underway to test it directly.
New discovery targets and Minyari growth drilling
Batch 3 results extended gold and copper anomalism at AL01, Yolanda, and GEO-01 South, with partial assays returned from ongoing growth drilling at the GEO-01 Main Zone.
AL01 and Yolanda Trend
AL01 (17km north of Minyari): Phase 1 air core drilling defined three additional coherent gold±copper and pathfinder anomalies, each 500–700m long, supporting follow-up RC drilling.
Yolanda Trend: Large-scale coincident copper-arsenic-zinc anomaly defined. The copper anomaly now extends ~2.1km along strike, with the zinc anomaly extending ~5km along strike. Coincident copper-arsenic-zinc anomalism is a feature of all Minyari Dome deposits, providing a target signature for follow-up drilling.
GEO-01 Main Zone growth drilling
Growth drilling extended the mineralised hangingwall lodes, with partial assays from diamond hole 26XMDD0555 returning 10m at 1.1 g/t gold, 0.07% copper, and 1,328 ppm cobalt from 136m, including 3m at 2.7 g/t gold, 0.16% copper, and 2,096 ppm cobalt from 138m. Further assays are pending on this 860m hole.
| Target Area | Highlight Result | Interval / From | Significance |
|---|---|---|---|
| Tim’s Dome | 10m at 1.5 g/t Au (incl 1m at 10.1 g/t Au) | from 242m | Above untested conductor |
| Tim’s Dome | 39m at 0.13% Cu | from 171m | Copper extension |
| GEO-01 Main Zone | 10m at 1.1 g/t Au, 1,328 ppm Co | from 136m | Hangingwall lode extension |
| AL01 | 3 new Au±Cu anomalies, 500–700m each | — | Follow-up RC targets |
| Yolanda Trend | Coincident Cu-As-Zn anomaly | ~2.1km Cu strike | Minyari-style signature |
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What’s next — funding, timelines and the road ahead
The Phase 1 CY2026 programme comprises 321 holes for 41,000m planned, with 290 holes for 33,091m completed to date. The programme is fully funded from existing cash plus WA Government EIS grants, including a A$180k EIS grant awarded to co-fund diamond drilling at Tim’s Dome. No capital raise or share issuance is disclosed in this announcement.
Near-term activities:
- Ongoing diamond core tails testing the AEM conductor at Tim’s Dome (results expected in coming weeks)
- Continued RC drilling at GEO-01 South
- Ongoing air core drilling at Jezabeel
- Design of follow-up RC drilling at AL01
- Future diamond core drilling at Mollie
With three rigs active, a fully funded programme, batched assays flowing, and the Minyari Dome Pre-Feasibility Study advancing toward completion (2.5 Moz gold Mineral Resource; 2.9 Moz gold Minyari Project total Mineral Resource), Antipa offers investors a steady pipeline of near-term catalysts alongside a defined development asset.
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