Nautilus announces 410m tonne inferred mineral resource in Tonga

Nautilus Minerals has announced that an initial resource estimate shows an inferred resource of 410 million tonnes at its seafloor mining project around Tonga.

The inferred resource, at the Clarion-Clipperton Fracture Zone (CCZ) in the central Pacific ocean, contains nodules of manganese, nickel, copper and cobalt. Nautilus subsidiary Tonga Offshore Mining confirmed that the resource estimate, carried out by Golder Associates and based on a 6kg per m2 abundance cut-off, showed 26.9% manganese, 1.2% nickel, 1.1% copper and 0.24% cobalt. “Our maiden mineral resource estimate for the CCZ again highlights the enormous potential of seafloor resources,”...


James Heywood

September 24, 2012

14:15 GMT