The mantle transition zone (MTZ), which occurs 410–670 kilometers below Earth's surface, may store several oceans' worth of water. This water, which is carried to such depths by subducting tectonic ...

The mantle is incredibly difficult to study because it’s so deeply buried beneath the Earth’s crust, or outer skin. Now, scientists have drilled a 1,268m-deep core that reaches down into this ...

Giant regions of the mantle where seismic waves slow down may have formed from subducted ocean crust, a new study finds.

Continent-size islands deep inside Earth's mantle could be more than a billion ... at Utrecht University in the Netherlands, told Live Science. "The only thing that we know of these is that ...

Others have suggested that the blobs are huge chunks of oceanic crust that were pushed into the mantle when one tectonic plate slipped under another — a process known as subduction. The crust ...

Deep within Earth’s mantle lie two enormous, continent-sized structures known as LLVPs. Scientists once believed these ...

The plates make up Earth's outer shell, called the lithosphere. (This includes the crust and uppermost part of the mantle.) Churning currents in the molten rocks below propel them along like a ...

Scientists have revealed that two continent-size regions in Earth's deep mantle have distinctive histories and resulting chemical composition, in contrast to the common assumption they are the same.