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Webster 1913 Edition
Metasomatism
Metˊa-so′ma-tism
,Noun.
[Pref.
meta-
+ Gr. [GREEK], [GREEK], body.] (Geol.)
An alteration in a mineral or rock mass when involving a chemical change of the substance, as of chrysolite to serpentine; – opposed to ordinary metamorphism, as implying simply a recrystallization.
– Metˊa-so-mat′ic
(#)
, Adj.
Definition 2024
metasomatism
metasomatism
English
Noun
metasomatism (countable and uncountable, plural metasomatisms)
- (geology) The process by which the bulk chemical composition of a rock is changed by the introduction of components from an external source, especially by a hydrothermal fluid.