This illustrative diagram shows the ancient subducted "slab" the team imaged. This ancient seafloor slab has a direct impact on the large-scale structure called a mantle blob. The team describes ...

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 ...

An unexpected find in tiny crystals hints that the Earth's mantle may not quite behave as has been believed for nearly a century.