metasomatism
metasomatism[ˌmɛtəˈsəʊmətɪz(ə)m]noun- [mass noun](Geology)change in the composition of a rock as a result of the introduction or removal of chemical constituents
(地质)交代作用,交代变质(作用)
派生metasomaticadjectivemetasomatizeverb- (亦作 -ise)
语源- late 19th cent.: from meta- (expressing change) + Greek sōma, somat- 'body' + -ism
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