Eduction (geology)

In geology, eduction is a process in which the Earth's crust spreads sideways, exposing deep-seated rocks.

It is prominent in the middle layers of the Himalayas, where gravity pushes the mountains down.

Together with a high grade of erosion, this activity brings deep rocks to the surface, many from more than a depth of 100 km.

The unusually fast elevation preserves rare metastable minerals, e.g. diamonds and coesite.

This article about geological processes is a stub.