Concept information
Preferred term
metamorphism
Definition
- Metamorphism is the transformation of existing rock (the protolith) to rock with a different mineral composition or texture. Metamorphism takes place at temperatures in excess of 150 °C (300 °F), and often also at elevated pressure or in the presence of chemically active fluids, but the rock remains mostly solid during the transformation. Metamorphism is distinct from weathering or diagenesis, which are changes that take place at or just beneath Earth's surface. (Adapted from: https://en.wikipedia.org/wiki/Metamorphism)
Broader concept
In other languages
-
French
-
métamorphisme type
URI
http://data.loterre.fr/ark:/67375/QX8-KT7L49NG-L
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