metamorphism

English Thesaurus

1. change in the structure of rock by natural agencies such as pressure or heat or introduction of new chemical substances (noun.process)

hypernym	:	geologic process, geological process,
definition	:	(geology) a natural process whereby geological features are modified (noun.process)

hyponym	:	anamorphism,
definition	:	metamorphism that occurs deep under the earth's surface; changes simple minerals into complex minerals (noun.process)

hyponym	:	epigenesis,
definition	:	a geological change in the mineral content of rock after the rock has formed (noun.process)

hyponym	:	katamorphism,
definition	:	metamorphism that occurs at or near the earth's surface; breaks down complex minerals into simpler ones (noun.process)