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 ...

The new study reveals that the African plate and the Pacific plate have different chemical compositions and ages, parting ways with the old study, which proposed they are both similar in composition.

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 ...