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 ...

they do not take part in mantle convection (the flow in the Earth's mantle). Thus, contrary to what the geography books teach us, the mantle cannot be well-mixed either. Talavera-Soza says ...

The Earth is made of different layers: the core, mantle and crust. Plate tectonic theory shows that the crust of the Earth is split into plates (pieces of the Earth’s crust). The movement of ...