Explain the processes that produce a hot-spot How is a hot-spot track produced?

Current research suggests that mantle plumes originate some 1,800 miles beneath the earth’s surface, where the liquid-metal outer core meets the lowermost part of the rocky mantle. Seismic experiments indicate that the core is not smoothly spherical but has many irregularities, perhaps analogous to the mountain ranges on the earth’s surface. It could be that these core irregularities direct heat flows to produce rising plumes of molten rock capable of penetrating the thick mantle and even reaching the earth’s surface.

Apparently, by hot spot track, you are referring to the chain of volcanic islands produced as the plate moves over the hot spot. The Pacific Plate is shown to be moving northwest by the evidence of the Hawaiian Islands. The oldest island are at the northwestern end of the chain, while the one with active volcanoes (Hawaii) is at the southeastern end. The seamount, Loihi, is to the southeast of the big island.