Continent-size islands deep inside Earth's mantle could be more than a billion years old, a new study finds. Known as large low-seismic-velocity provinces (LLSVPs), these blobs are both hotter and ...

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

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

It is unlikely that the Earth's mantle — the layer beneath ... Although such a 'plum-pudding' mantle — one consisting of blobs of one composition dispersed in a matrix of another — has ...

It creates the Earth's magnetic field and is about 1,400 miles (2,300 kilometers) thick. The next layer is the mantle. Many people think of this as lava, but it's actually rock. The rock is so hot ...

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 ...

They suggest that large meteorite collisions could have caused Earth’s mantle to form “blobs” of volcanic material that over time became continental crust. To make a compelling case ...

Massive mantle formations, called LLSVPs, have been found to be over a billion years old. These structures, sitting 3,000 km beneath the surface, slow seismic waves, indicating unique physical and ...

The Earth is made up of different layers ... Slab pull occurs where older, denser tectonic plates sink into the mantle at subduction zones. As these older sections of plates sink, newer and ...

One theory suggests superplumes could be leftovers from Theia, the Mars-sized protoplanet that formed the Moon after colliding with Earth. 'James Webb killer is here': NASA’s SPHEREx will scan ...

School children learn about the make-up of the Earth with an image depicting the Earth's core, mantle and crust layered ... make-up of some continental-sized blobs deep inside the Earth.