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  • Helicopter flying an aeromagnetic survey, dangling sensors.

    Scanning Wyoming for mineral treasures

    K. Warner, Metal Tech News|Updated Nov 8, 2024

    Aerial scans of the Earth's crust 3,300 feet below ground are being used to seek out potential critical mineral deposits in Cowboy State. Using an array of sensors attached to aircraft flying overhead, geologists are scanning thousands of feet below Wyoming's surface with electromagnetic surveys – a prospecting method that reads the strength of the earth's subsurface magnetic field to identify likely locations of valuable metals and minerals like vanadium, niobium and t...

  • McGill University Pretium Resources Brucejack Mine British Columbia Canada

    Brucejack, sour milk and bonanza gold veins

    Shane Lasley, Data Mine North|Updated Jul 10, 2022

    The formation of bonanza-grade gold veins like those running through the ore at Pretium Resources Inc.'s Brucejack Mine in Northern British Columbia, Canada, has long baffled scientists. Given the time it would take the mineralizing fluids carrying minute concentrations of gold to form the thick veins of the precious metal, they simply should not exist. Yet, these seemingly impossible ultrahigh-grade seams of gold are found at places like Brucejack, Ballarat in Australia,...