A very long-lived magma source located deep in the mantle is called a ________.
A)magma welt
B)basalt spout
C)melt well
D)hot spot

Question

Quizplus · Accepted Answer

A hot spot is a very long-lived magma source that is located deep in the mantle. As tectonic plates move over the hot spot, volcanoes can form on the surface. The Hawaiian Islands are an example of a volcanic island chain that was formed above a hot spot in the Pacific Ocean. The other answer choices (A, B, and C) are not commonly used terms in geology for a long-lived magma source in the mantle.

A Very Long-Lived Magma Source Located Deep in the Mantle