What type of plate boundary is Mount St. Helens and the Cascade Mountains?
What type of plate boundary is Mount St. Helens and the Cascade Mountains? Mount St. Helens and the Cascade Mountains are located in the Cascadia Subduction Zone, which is a type of convergent plate boundary. The Juan de Fuca Plate is subducting beneath the North American Plate, resulting in the formation of two parallel mountain …
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