Larry Hulbert

The Western Churchill is an extensive Archean and Proterozoic tract of land that contains a number of large magmatic terranes conducive to hosting Ni-Cu-PGE mineralization. Komatiites associated with both the Rae and Hearne Provinces have the characteristics of world-class komatiite-hosted nickel camps, and recent discoveries of high-grade Ni sulphide mineralization are most encouraging. Proterozoic mafic and ultramafic intrusions within the Hearne also have geological and geochemical characteristics of contaminated and sulphidic magmas. Noritic and gabbronorite within the Snowbird Tectonic Zone contain disseminated and net-textured sulphide concentrations that have unusually high metal tenors. The noritic intrusions appear to have crystallized under abnormally high pressures.

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