Mackenzie Hotspot

The Mackenzie hotspot was a volcanic hotspot that existed about 1,267 million years ago across Canada from the Northwest Territories and Nunavut. It is responsible for the creation of the Mackenzie Large Igneous Province, which contains the largest dike swarm on Earth. During its formation, eruption of plateau lavas near the Coppermine River, built an extensive volcanic plateau about 1,200 million years ago with an area of about 170,000 km2 (66,000 sq mi) representing a volume of lavas of at least 500,000 km3 (120,000 cu mi).

The Mackenzie hotspot also resulted in the opening of the Mesoproterozoic Poseidon Ocean.

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