What are the differences in origin between the Aleutian Islands and the Hawaiian Islands?

Question

annd what's some evidence?

Answer 1

The Aleutian Islands are part of a "volcanic arc" and are a continuation of the Aleutian Range of mountains on the Alaskan mainland. They lie at the boundary of the Pacific Plate and the North American Plate, and are formed by the subduction of the Pacific under the North American. They have no specific trend in age from one end to the other, with volcanoes forming at various times up and down their length.

The Hawaiian Islands lie in the middle of the Pacific Plate, far from any of its boundaries. They have no connection whatsoever with any mainland features. They are formed by a 'hot spot' where a deep magma plume rises against the underside of the Pacific Plate, and are older and smaller as you go away from the hot spot, a situation brought about by the plate moving generally west-northwest over the plume.

Some evidence is the fact that there are no plate boundaries anywhere near Hawaii, and the trend in age (and volcanic activity) with position.

Answer 2

Hawaiian islands were formed due to a mantle plume or hotspot (hole) in the lithosphere as it moves across the asthenosphere. Basaltic lava coming up through the plume formed islands. The Aleutian islands formed because they are on the boundary between the north american and pacific plates.

Answer 3

Hawaii Islands Differences