| 单词 |
amphibolitization |
| 释义 |
amphibolitization, n. Petrogr.|æmˌfɪbəlɪtaɪˈzeɪʃən|
[f. amphibolite n. + -ization.]
The alteration of a rock to form amphibolite, or one more nearly resembling amphibolite in composition.
1918Q. Jrnl. Geol. Soc. LXXIV. 61 W. G. Foye correlates the liberation of alkaline solutions by amphibolitization with the production of nepheline-syenites. 1932A. 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. 1974Scottish Jrnl. Geol. X. 42 Amphibolitization of a granulite-facies terrain involves hydration of essentially anhydrous mineral assemblages.
Hence (as back-formations) amˈphibolitize v. trans., to increase the amphibolic content of (a rock); amˈphibolitized ppl. a.
1961Webster, Amphibolitize, v.t. 1963Jrnl. Petrol. IV. 356 Sr and An values in plagioclases present in rocks of all stages from fresh to amphibolitized gabbros..are similar. 1974Nature 4 Oct. 382/1 Paucity of fluids may also explain why large areas of Archaean granulites were not amphibolitized in later times. 1985Chem. Geol. L. 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. 1993Jrnl. Geol. Cl. 358 A..low-K, calcic amphibolite, collected from an amphibolitized mafic dike. |
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