| Located approximately 40 kilometers south of Okak Bay, the Cirque property lies within an area spanning 40 km long by 5--10 km wide that contains several localized, magmatic Ni-Cu sulphide occurrences. With the exception of the OKG prospect located approximately 35 km north of the Cirque prospect, most of the magmatic Ni-Cu sulphide occurrences are hosted within Mesoproterozoic varieties of leucotroctolite, leuconorite, leucogabbro, and anorthosite of the Nain Plutonic Suite.;Overall, the metal contents in all of the holes are low (average Ni/Cu = ≤1, Pd and Pt values <50 ppb). The best intersection is from borehole LBN-4 (390.35m): 0.28% Ni, 0.44% Cu, and 0.12% Co over 5.1.;Sulphide mineralization at the Cirque gossan consists of thin, irregular lenses and stringers, steeply dipping to the west and east, wrapping around and crosscutting iron stained, unmineralized leucoanorthosite. Fractured and embayed edges of plagioclase crystals by sulphide minerals at the Cirque gossan suggest thermal erosion of a semi-crystallized plagioclase-rich fractionate by a Fe-rich sulphide melt which had mobilized from depth. (Abstract shortened by UMI.). |
