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 research reveals that only the oldest and fastest-sinking oceanic plates can transport water deep into Earth’s mantle, ...

Park and her colleagues used this observation to infer the viscosity of the mantle. By examining how the Earth deformed over time, they found evidence of a layer about 50-miles thick that is less ...

A new study corrects the recorded depth of an earthquake in Japan, revealing that it was not the deepest in history.

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.

Earth’s mantle is divided into three layers: an upper region that extends to about 410 km below Earth’s surface, a mantle transition zone (MTZ) from about 410 km to 660 km depth, and a lower region ...

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 ...

'Superdeep' Diamonds Hint at Depth of Carbon Cycle. ... to mix with the upper mantle layer of hot rock that reaches about 410 miles (660 kilometers) down, or even to the lower mantle below that.

On present-day Earth, plate subduction continuously modifies the chemical composition of the convecting mantle, and various mantle sources linked to these processes have been widely studied.

As the Aral Sea has been drained by irrigation and dried up, the mass loss on the surface has caused Earth’s upper mantle to rise up, lifting the emptied sea bed an average of 7 millimetres per year ...