Question

A hot plume of mantle material, which may extend to the core-mantle boundary, produces a volcanic region a few hundred kilometers across called a _____.

hot spot

volcanic arc

Ring of Fire

mantle plume

Answer 1

Option A, hot spot, is the right answer.

Mantle plumes are regions of warm, up-welling covering. A hot spot occurs over the plume. It generates the magma that emanates by the unbreakable plates of the lithosphere and provides active volcanoes at the surface of the earth. In other words, the hot spots are found in the mantle where cliffs melt to form magma. It creates a volcanic region a few hundred kilometers across.

Answer 2

Answer: Hot spot

The volcanic hot spot is an area in the mantle from which heat rises as a thermal plume from deep in the Earth.