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.

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 ...

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 ...

The discovery bolsters the theory that meteorite impacts played an important role in Earth's early geological history ...

The oldest rocks on Earth formed more than 3 billion years ago ... As the impacts blasted up enormous volumes of material and ...

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 ...

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 ...