The cause of this significant age change is because the Anahim Volcanic Belt has its origins from the North American Plate moving over the hypothesized Anahim hotspot, a mantle plume that is likely responsible for volcanism throughout the Anahim Volcanic Belt.
The cause of this significant age change is. The Anahim Volcanic Belt has its origins from the North American Plate. This North American Plate is moving over the hypothesized Anahim hotspot. The hypothesized Anahim hotspot is a mantle plume. This mantle plume is likely responsible for volcanism throughout the Anahim Volcanic Belt.