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Somuncurá Project (Epithermal Gold-Silver and Intrusive-Related Systems)

Location and Access

The Somuncurá Project comprises three tenement areas in central Río Negro Province within the Somuncurá Massif, a well-established, yet relatively underexplored, epithermal gold–silver province with similar geological characteristics to the Deseado Massif of Santa Cruz. The region hosts significant deposits and advanced projects, including the Navidad silver deposit and the Calcatreu gold mine.

Prospectivity and Exploration Target

The project covers three areas within a large, underexplored volcanic terrane with multiple styles of mineralisation. Historical drilling in two areas, Caltrauna intersected both disseminated and structurally controlled gold–silver mineralisation, including:

  • 32m @ 1.97 g/t Au from 82m (Hole RTC19)
  • 46m @ 1.5 g/t Au from 4m (Hole RTC09)

Recent work has identified a vertically zoned hydrothermal system at Caltrauna, where epithermal mineralisation overlies deeper molybdenite-bearing quartz–sulphide veining, suggesting a potential link to a concealed porphyry system.

In the third area, El Bagual, a >5 km structural corridor hosts quartz–chalcedony veins with rock-chip grades up to 33 g/t Au and 1,786 g/t Ag. Vein textures and zonation have been observed that indicate boiling-related processes, with northern zones considered highly prospective for shallow high-grade gold mineralisation.

Collectively, the project hosts multiple mineralising systems at different levels of exposure, offering both near-surface discovery potential and deeper intrusive-related upside.

Proposed Exploration Program

Exploration will focus on systematic drilling (2500m) of priority targets supported by additional geophysics, targeting:

  • High-grade epithermal vein systems, particularly at El Bagual; and
  • Shallow epithermal gold and deeper intrusive-related mineralisation at Caltrauna.

Multiple drill targets are being advanced across district

Caltrauna

  • Drilled gold system: Intercepts include 32m @ 1.97 g/t Au and 19m @ 1.3 g/t Au
  • Multiple styles: Disseminated and structurally controlled Au–Ag mineralisation
  • System scale: Vertically zoned hydrothermal system
  • Deeper potential: Epithermal overprint on molybdenite-bearing quartz–sulphide veining suggests intrusive source at depth

El Bagual

  • District-scale corridor: >5km structural trend
  • High-grade surface results: Rock chips up to 33 g/t Au and 1,786 g/t Ag
  • Epithermal veining: Quartz–chalcedony vein systems
  • Exploration upside: Largely untested with strong surface expression