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.[1]
See also
edit- Desert pavement, describing other forms of surface rock formation.
References
edit- ^ The Tibetan Plateau Archived 2017-02-25 at the Wayback Machine By Andrew Alden, About.com. Retrieved on April 12, 2009
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