Catalogue of Canadian volcanoes |
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Catalogue of Canadian volcanoes Wrangell volcanic belt
This belt of volcanoes lies largely in Alaska but extends across the border
into southwestern Yukon Territory. It formed as a result of
melting of the crust due to subduction of the Pacific Ocean
plate beneath the North American plate at the Aleution arc.
It includes the volcanoes Mt. Wrangell,
which has been active historically, and Mt.
Churchill, which has had 2 large-magnitude explosive eruptions
in the last 2000 years that blanketed most of the Yukon with ash.
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