metasomatosisn.
/ˌmɛtəˌsəʊməˈtəʊsɪs/, U.S. /ˈˌmɛdəˌsoʊməˈtoʊsəs/ Geology.
= metasomatism n.
ΘΚΠ
the world > the earth > structure of the earth > formation of features > metamorphism > [noun] > metasomatism
replacement1881
metasomatism1886
metasomatosis1886
1886 T. S. Hunt Mineral Physiol. & Physiogr. 105 Although the crystalline rocks..have been supposed to be..the subject of wide-spread metasomatosis.
1888 J. J. H. Teall Brit. Petrogr. 438 Metasomatosis, the change of material due to chemical agencies, undergone by rocks subsequent to their formation.
1893 A. Geikie Text-bk. Geol. iv. viii. 596 Metasomatosis, metasomatic..and metachemic [have been] applied to chemical metamorphism or alteration of constitution or substance.
1966 W. Eitel Silicate Sci. IV. 38 Among results of an alkali metasomatosis, the most striking effects were observed for sodium and potassium mineralizations of regional importance.
1991 Lithol. & Mineral Resources 25 460 The similarities of the structures of parent rocks are responsible for the similarities in the sulfur ores formed after them by metasomatosis.
This entry has been updated (OED Third Edition, December 2001; most recently modified version published online March 2022).
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n.1886