Question

Scientists wondered how volcanoes could be located so far from tectonic plate boundaries until one proposed the idea of
Select Answer
, where the magma is much hotter than the surrounding magma. These are
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and do not move with tectonic plates. They are responsible for the creation of
oceanic
island chains.

Answer 1

Scientists wondered how volcanoes could be located so far from tectonic plate boundaries until one proposed the idea of mantle plumes (hot spots), where the magma is much hotter than the surrounding magma. These are stationary (fixed) and do not move with tectonic plates. They are responsible for the creation of oceanic island chains.