amphibolitizationn.
Geol.
The alteration of a rock to form amphibolite, or one more nearly resembling amphibolite in composition.
ΘΚΠ
the world > the earth > structure of the earth > formation of features > metamorphism > [noun] > others
flintifying1799
anthracitization1875
marmarosis1882
granitization1893
marmorosis1909
amphibolitization1918
hybridization1926
hornfelsing1930
amphibolization1932
diaphthoresis1932
metagenetic1963
rodingitization1971
1918 Q. Jrnl. Geol. Soc. 74 61 W. G. Foye correlates the liberation of alkaline solutions by amphibolitization with the production of nepheline-syenites.
1932 A. Harker Metamorphism xviii. 308 True eclogites..may be seen in all stages of amphibolization. Amphibolitization is perhaps a more appropriate description; for it is often not a mere replacement of pyroxene by amphibole but a reaction between garnet and pyroxene, yielding an aggregate of hornblende and plagioclase.
1974 Scottish Jrnl. Geol. 10 42 Amphibolitization of a granulite-facies terrain involves hydration of essentially anhydrous mineral assemblages.
Derivatives
amˈphibolitize v. [as back-formation] (trans.) to increase the amphibolic content of (a rock).
ΚΠ
1961 Webster's 3rd New Internat. Dict. Eng. Lang. Amphibolitize, v.t.
1974 Nature 4 Oct. 382/1 Paucity of fluids may also explain why large areas of Archaean granulites were not amphibolitized in later times.
amˈphibolitized adj. [as back-formation]
ΚΠ
1963 Jrnl. Petrol. 4 356 Sr and An values in plagioclases present in rocks of all stages from fresh to amphibolitized gabbros..are similar.
1985 Chem. Geol. 50 65/2 These rocks have been referred to as ‘symplectitic eclogites’, ‘amphibolitized eclogites’, ‘retrograded eclogites’, ‘eclogitic amphibolites’ or even ‘clinopyroxene–garnet rocks’ by previous investigators.
1993 Jrnl. Geol. 101 358 A..low-K, calcic amphibolite, collected from an amphibolitized mafic dike.
This entry has not yet been fully updated (first published 1997; most recently modified version published online June 2011).
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n.1918