Coppermine_River_Group
Coppermine River Group
Geologic formation in Northwest Territories and Nunavut, Canada
The Coppermine River Group is a sequence of Mesoproterozoic continental flood basalts forming part of the Mackenzie Large Igneous Province in the Northwest Territories and Nunavut, Canada. It is among the largest flood basalt provinces on Earth, covering the area with a volume of approximately 650,000 km3 (155,943 cu mi).[1]