This approximately circular stock some 3 km in diameter, is emplaced in Archaean volcanics, which are fenitized near the contact, and unconformably overlain by Aphebian sediments of the Montgomery Lake and Hurwitz Groups.
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Northwest Territories, Keewatin
This is an ellipsoidal body of 7x2 km lying along the north shore of an arm of Kaminak Lake beneath which 35% of the complex lies. It is intruded between Archaean greenstones and tonalite, both of which are fenitized for up to 300 m from the contact.
This circular magnetic anomaly is considered to be the signature of an alkaline complex. Hand specimens which unfortunately have not been described, are anomalously radioactive.