Antares Metals Uncovers High-Grade Copper and Gold at Conglomerate Creek

Antares Metals has reported impressive rock chip assay results from its Conglomerate Creek prospect, revealing significant copper, gold, and silver mineralization that could signal a major discovery in Queensland’s Mt Isa region.

  • Rock chip samples up to 22.0% copper, 7.4 g/t gold, and 394 g/t silver
  • 450m mineralised vein system identified north of Conglomerate Creek
  • Geophysical anomalies linked to a large-scale copper mineralised system
  • Elevated indicator minerals suggest intrusion-related copper potential
  • Ongoing systematic exploration planned across Mt Isa North tenements
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Exploration Breakthrough at Conglomerate Creek

Antares Metals Limited (ASX, AM5) has unveiled a series of compelling exploration results from its Conglomerate Creek prospect, part of the Mt Isa North Copper and Uranium Project in northwest Queensland. The latest rock chip sampling campaign has returned standout grades, including copper concentrations as high as 22.0%, gold up to 7.4 grams per tonne, and silver reaching 394 grams per tonne. These results mark a significant step forward in the company’s quest to delineate a large-scale copper mineralised system in the region.

A Promising Vein System Emerges

Field teams identified a 450-metre-long quartz vein system northeast of the main geophysical targets at Conglomerate Creek. This vein system, characterized by multiple radial veins and intense alteration, has yielded some of the highest assay results to date. Copper mineralisation is predominantly malachite with chalcocite masses, hosted in sheared basalt and quartz veins. The presence of elevated indicator minerals such as bismuth, tungsten, antimony, and selenium further supports the interpretation of an intrusion-related copper system, which is often associated with significant mineral deposits.

Geophysical and Geochemical Synergy

The exploration success is underpinned by the company’s 2024 magnetic and gravity surveys, which highlighted seven high-priority geophysical anomalies linked to a semi-circular intrusive feature measuring approximately 2 by 2.5 kilometres. Surface sampling above these buried targets has confirmed copper, gold, and silver mineralisation, including artisanal workings with visible malachite. These findings suggest that the intrusion is acting as a heat source driving mineralisation, enhancing the prospectivity of the area.

Strategic Outlook and Next Steps

Antares Metals’ CEO Johan Lambrechts expressed optimism about the ongoing exploration program, emphasizing the potential for copper, gold, and silver mineralisation across the tenement holdings. The company plans to continue systematic reconnaissance, mapping, and sampling to refine target rankings and advance prospects toward drilling. While these rock chip results are encouraging, the true scale and economic viability of the mineralisation will require further drilling and resource definition.

Context in the Mt Isa Region

The Mt Isa region is renowned for its world-class copper deposits, often hosted in sedimentary and volcanic rock units. Antares Metals’ exploration approach leverages this geological setting, targeting intrusion-related copper systems that could complement the existing mineral wealth. The combination of high-grade surface samples and geophysical data positions Conglomerate Creek as a compelling exploration story to watch in the coming months.

Bottom Line?

Antares Metals’ latest results at Conglomerate Creek hint at a significant copper-gold system, but the next phase of drilling will be critical to confirm its true potential.

Questions in the middle?

  • Will upcoming drilling confirm the extent and grade continuity of the mineralisation?
  • How might these findings impact Antares Metals’ valuation and investor interest?
  • What are the timelines and budget plans for advancing exploration at Conglomerate Creek?