Sulfide textural variations and multiphase ore emplacement in the Eagle's Nest Ni-Cu-PGE deposit, McFaulds Lake greenstone belt, Ontario, Canada

The Meso to Neoarchean McFaulds Lake green stone belt (aka 'Ring of Fire') in northern Ontario is best known for its world-class chromite endowment, but it also hosts significant magmatic Ni-Cu-PGE mineralization at the Eagle's Nest deposit. Mineralization at Eagle's Nest occurs in a dynamic feeder system that contains multiple generations of sulfide textures, consistent with its interpretation as a magmatic feeder. Abundant disseminated, oikocrystic net-textured, and inclusion net textured sulfide mineralization formed first and was consolidated enough to be cross-cut by abundant late stage websteritic melts and by minor late-crystallizing massive sulfide melts. Understanding the fundamental characteristics of mineralization at Eagle's Nest will provide critical information about the evolution of this large Cr and Ni-Cu-PGE ore system associated with Archean komatiitic magmatism in the Superior Province.