Eduction (geology)

Tibetan rocky land, likely a result of combined eduction and erosion.

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

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.[1]

## See also

* Desert pavement, describing other forms of surface rock formation.

## References

1. ↑ The Tibetan Plateau By Andrew Alden, About.com. Retrieved on April 12, 2009

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