metasomatism
/ˌmetəˈsəʊmətɪzəm/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）。
派生词
metasomatic
adjective
metasomatize
（亦作-ise）verb 词源
late 19th cent.: from
META- (expressing change) + Greek
sōma,
somat- 'body' +
-ISM.