A mysterious find on Easter Island, investigated by a team of geologists, suggests that the Earth's mantle seems to behave differently than once thought.
It’s believed that mantle plumes remain in the same place as Earth's plates move over them, producing new volcanoes each time the plate shifts (as you can see in the diagram above). For further ...
On present-day Earth, plate subduction continuously modifies the chemical composition of the convecting mantle, and various mantle sources linked to these processes have been widely studied.