migmatizedadj.
/ˈmɪɡmətʌɪzd/, U.S. /ˈmɪɡməˌtaɪzd/ Geology.
Converted into a migmatite.
ΘΚΠ
the world > the earth > structure of the earth > formation of features > tectonization or diastrophism > [adjective] > migmatization
migmatized1947
1947 A. Hietanen Bull. Geol. Soc. Amer. 58 1020 The oldest rocks [in the Turku area of Finland] are kinzigites (cordierite-garnet gneisses) and amphibolites, both highly metamorphosed and migmatized.
1958 Geol. Mag. 95 383 During the Caledonian orogeny, both the old crystalline rocks and a low structural level of the Caledonian geosynclinal rocks themselves became migmatized and rose as diapirs.
1971 Scottish Jrnl. Geol. 7 305 In central and eastern Sutherland the Moine rocks are extensively migmatized.
1981 Science 3 July 58/2 Most greenstone belts have intrusive-migmatized margins that have obliterated the original basement relations.
1993 Precambrian Res. 61 33/2 A major component of the migmatized mafic-tonalitic gneisses..is orange-pink megacrystic mesoperthitic granite.
This entry has been updated (OED Third Edition, March 2002; most recently modified version published online March 2022).
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adj.1947