Question

You probably noticed that the ages of the volcanoes do not always decrease linearly toward the present location of the hotspot. Explain in 1-2 sentences why you think this is the case.

Answer 1

Answer:

There is a gradual decline  of volcanic age form the continental to the oceanic. As some of the volcanoes get eroded away.

Explanation:

• The hotspot volcanoes are transported by plate movements as they move away form the mantel plumes the hotspot volcanism decreases. Then eventually the hotspots become extinct.

• Thus on the basis of age the youngest are near the places active tectonism where the magma is directly ground underneath the ground surface.