from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any form of metamorphism that occurs near the Earth's surface
from The Century Dictionary and Cyclopedia
- n. In geology, any change in the texture of rocks produced by fracturing and granulation, with recrystallization, whereby rocks become finer-grained and foliated, as the production of gneisses and schists from granites. Chamberlin and Salisbury, 1904.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. metamorphism that occurs at or near the earth's surface; breaks down complex minerals into simpler ones
Sorry, no etymologies found.