Epithermal Gold-Silver and Porphyry Copper-Gold Potential Confirmed by Geophysical Survey Results at Swan Lake

Key Takeaways

• IP anomaly aligns with magnetic low, indicating porphyry system
• Surface samples show up to 0.7% Cu, 0.16 g/t Au
• Alteration zone spans tens of square kilometres
• Drill targets refined for upcoming exploration program
• Project sits between Sweden’s Aitik and Laver deposits

Summary

Arctic Minerals announced that its late‑2025 induced‑polarisation (IP) geophysical survey at the Swan Lake project confirmed a strong positive IP anomaly coincident with a magnetic low, interpreted as the upper portion of a porphyry‑epithermal system. The anomaly sits within a ten‑kilometre‑scale alteration zone between Sweden’s world‑class Aitik and Laver deposits. Surface outcrop sampling returned up to 0.7% copper, 0.16 g/t gold and 55 g/t silver, reinforcing the multi‑metal potential. The data have sharpened drill‑target prioritisation for the next exploration phase.

Pulse Analysis

Sweden’s Norrbotten region hosts some of the world’s most prolific porphyry copper‑gold districts, notably the Aitik and Laver mines. Within this mineral‑rich corridor, Arctic Minerals’ Swan Lake project now benefits from a refined geological model that links surface geochemistry with deep‑seated alteration. Understanding the structural controls of porphyry‑epithermal systems is crucial, as they often host extensive copper, gold and silver mineralisation that can be economically extracted at scale.

The recent IP survey employed gradient‑array and pole‑dipole configurations to map subsurface chargeability contrasts, revealing a robust positive IP response directly over a magnetic low anomaly. Such a chargeability‑magnetic pairing is a classic signature of sulphide‑rich, alteration‑dominated zones that sit atop porphyry cores. By delineating this anomaly across tens of square kilometres, the survey not only validates earlier magnetic interpretations but also pinpoints zones where mineralisation is most likely concentrated, guiding the next wave of drilling with greater precision.

For investors and industry observers, the implications are twofold. First, the confirmed multi‑metal potential positions Swan Lake as a prospective addition to the global copper supply chain, especially as demand for electrification metals accelerates. Second, the sharpened drill targets reduce exploration risk, potentially shortening the path to a resource estimate and enhancing Arctic Minerals’ market valuation. Continued data integration and systematic drilling will be key to unlocking the project's full economic upside, making it a watch‑list asset in the Nordic mining landscape.