diaphthoresisn.

/ˌdʌɪəfθəˈriːsɪs/

Etymology: < Greek διαϕθείρειν to destroy utterly (formed as dia- prefix¹ + ϕθείρειν to destroy), after Greek nouns in -ησις: compare German Diaphthorit (F. Becke, 1909).

Geology.

Retrograde metamorphism.

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

1932 A. Harker Metamorphism xx. 342 The changes which befall metamorphosed rocks subsequently to the culmination of metamorphism..are of the nature of degradation... This class of changes includes what Becke has styled ‘diaphthoresis’, implying ruin or corruption; but this rather cumbrous term has not been very widely adopted. It will be more convenient to speak of retrograde metamorphism.

1948 Mem. Geol. Soc. Amer. 30 299 Retrogressive metamorphism, or diaphthoresis, is the mineralogical adjustment of relatively high-grade metamorphic rocks to temperatures lower than those of their initial metamorphism.

1957 Encycl. Brit. XV. 322/2 Reactions of adjustment to the conditions of lower temperature are..by no means altogether absent. The process of retrograde metamorphism is known as diaphthoresis.

This entry has not yet been fully updated (first published 1993; most recently modified version published online June 2018).

单词	diaphthoresis
释义	diaphthoresisn. /ˌdʌɪəfθəˈriːsɪs/ Etymology: < Greek διαϕθείρειν to destroy utterly (formed as dia- prefix¹ + ϕθείρειν to destroy), after Greek nouns in -ησις: compare German Diaphthorit (F. Becke, 1909). Geology. Retrograde metamorphism. 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 1932 A. Harker Metamorphism xx. 342 The changes which befall metamorphosed rocks subsequently to the culmination of metamorphism..are of the nature of degradation... This class of changes includes what Becke has styled ‘diaphthoresis’, implying ruin or corruption; but this rather cumbrous term has not been very widely adopted. It will be more convenient to speak of retrograde metamorphism. 1948 Mem. Geol. Soc. Amer. 30 299 Retrogressive metamorphism, or diaphthoresis, is the mineralogical adjustment of relatively high-grade metamorphic rocks to temperatures lower than those of their initial metamorphism. 1957 Encycl. Brit. XV. 322/2 Reactions of adjustment to the conditions of lower temperature are..by no means altogether absent. The process of retrograde metamorphism is known as diaphthoresis. This entry has not yet been fully updated (first published 1993; most recently modified version published online June 2018). < n.1932
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