Hannan talks drilling of back-arc porphyry in Peru
Executive Summary
- Hannan Metals reported first‑ever drilling of back‑arc porphyry and epithermal targets at its Belen project in Peru, intersecting peripheral gold mineralization (up to 0.4 g/t Au) and a Cu‑Mo porphyry system at Ricardo Herrera (veinlet chalcopyrite and sporadic molybdenite).
- High‑grade gold boulders (0.15–2.72 g/t Au, up to 1,475 ppm As) remain undiscovered east of the drill holes, indicating a significant nearby source.
- The company outlined next‑phase drilling plans targeting the 1.2 km Sortilegio chargeability anomaly and additional high‑resistivity targets, with permit approval for flagship Previsto target expected in Q3 2026.
Key Details
- Vista Alegre (Epithermal Target)
- Three holes (HDDVA001‑003) tested IP chargeability anomalies; intercepted only peripheral leakage structures.
- Surface gold values up to 0.4 g/t Au confined to the upper 90 m regolith.
- SWIR data show increasing fluid temperature with Cu up to 250 ppm and As up to 850 ppm in HDDVA001/002.
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21 mineralized boulders (0.15‑2.72 g/t Au, up to 1,475 ppm As) located 300‑500 m east remain unexplained; high resistivity anomalies identified for follow‑up drilling.
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Ricardo Herrera (Cu‑Mo Porphyry)
- Hole HDDRH001 drilled to 610 m of an intended 700 m depth; intersected Cu‑Mo porphyry from surface.
- Mineralization includes chalcopyrite on veinlet fractures (density up to 10 /m) and sporadic molybdenite below 248 m.
- Notable intervals: 2.4 m of disseminated chalcopyrite at 463.5‑466 m; 3.85 m of combined Cu‑Mo mineralization at 467.15‑471 m.
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Second hole planned ~350 m south.
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Sortilegio (Alkalic Porphyry)
- Planned final phase to test a 1.2 km chargeability anomaly within an alkalic porphyry system.
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Targets include surface soil Cu anomalies and Au‑Mo‑Te bearing quartz‑gossan boulders.
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Drilling Program Scope
- Up to 5,000 m across 18 diamond holes at Belen (Vista Alegre, Ricardo Herrera, Sortilegio) over ~6 months.
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Permit approval for flagship Previsto epithermal target anticipated Q3 2026.
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CEO Quote
“We are pleased to report results from our pioneering drill program… While our three holes at Vista Alegre have not yet intersected the main mineralized structure, they've discovered clear evidence of a robust hydrothermal system and anomalous gold, copper and arsenic values.” – Michael Hudson, CEO
Notable Quotes
- “The source of the high‑grade gold boulders… remains an exciting untested target.” – Michael Hudson
- “At Ricardo Herrera, HDDRH001 is making history as the first hole to test this porphyry system…” – Michael Hudson