One hypothesis proposes that large igneous provinces form at hot spots by mantle plumes that originate at what boundary within Earth?

Question

Quizplus · Accepted Answer

Large igneous provinces are thought to form at hot spots by mantle plumes that originate at the mantle-outer core boundary. This is because the heat and material necessary to create these plumes are believed to come from deep within the Earth, near the boundary between the mantle and the outer core.

One Hypothesis Proposes That Large Igneous Provinces Form at Hot