Hot spot volcanism forms volcanic island chains in oceans through shield volcanoes, as seen in the Hawaiian island chain.
Hot spot volcanism is typically responsible for forming volcanic island chains in the oceans. A hot spot in the middle of an ocean plate creates a shield volcano, and as the plate moves over it, a series of islands is formed. An example of this is the Hawaiian island chain, where the islands vary in age due to the movement of the Pacific plate over the hot spot.
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