In those zones, slabs of oceanic crust plunge into the mantle, creating distinct seismic signatures. Related Stories Scientists discover tectonic 'mega-plate' that disappeared 20 million years ago ...

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Due to the radiative thermal conductivity of the mineral olivine, only oceanic plates over 60 million years old and subducting at more than 10 centimeters per year remain sufficiently cold to ...

New simulations reveal that an ancient ocean of magma located above the Earth's core continues to shape the planet's ...

They found a sharp discontinuity, or change in the speed of seismic waves, within the mantle at a depth of 410 miles (660 kilometers), or the bottom of the transition zone between the upper and ...

Deformation across the mantle transition zone: A theoretical mineral physics view. Earth and Planetary Science Letters , 2020; 547: 116438 DOI: 10.1016/j.epsl.2020.116438 Cite This Page : ...

These regions, known as "ultra low velocity zones" are associated with strange mantle structures, including two giant blobs under Africa and the Pacific Ocean; they can be just a few miles across ...

Despite being composed of solid rocks, the Earth's mantle, which extends to a depth of ~2890 km below the crust, undergoes convective flow by removing heat from the Earth's interior. This process ...