katamorphism

/kat-uh-mawr-fiz-uhm/US // ˌkæt əˈmɔr fɪz əm //

变质作用,变质反应,变形作用,变质现象

Definitions

n.名词 noun

1
Geology.
- : metamorphism at or near the earth's surface: breaks down complex minerals into simpler ones.

Katamorphism or weathering, in place, has played an important part in enriching them.
The zone in which katamorphism is most active, usually near the surface, is called the zone of katamorphism.
A given rock may be undergoing katamorphism while rocks on either side at the same depth are suffering anamorphism.
Katamorphism is primarily responsible for most of the deposits of silica which are commercially used.