nephelinizationn.
/ˌnɛfəlᵻnʌɪˈzeɪʃn/, /ˌnɛfl̩ᵻnʌɪˈzeɪʃn/, U.S. /ˌnɛfələˌnaɪˈzeɪʃ(ə)n/, /ˈˌnɛfələnəˈzeɪʃ(ə)n/ Geology.
The alteration of a rock to one in which nepheline is a significant constituent.
ΘΚΠ
the world > the earth > minerals > change processes > [noun] > conversion to specific mineral
zeolitization1879
serpentinization1885
sericitization1888
uralitization1888
saussuritization1889
variolitization1890
propylitization1903
muscovitization1909
scapolitization1909
mylonitization1913
mylonization1913
myrmekitization1916
nephelinization1943
spilitization1946
1943 Science 26 Mar. 286/2 It is believed that the nephelinization is post-folding, since the flow marble contains fragments of all rocks except those containing nepheline.
1954 C. E. Tilley et al. Harker's Petrol. (ed. 8) iv. 55 Evidence has been presented that some of these rocks..are metasomatic and a product of nephelinization of Grenville limestone sediments.
1969 Bull. Brit. Mus. (Nat. Hist.), Mineral. 2 214 The nepheline syenites and ijolites are capable of desilicating the enclosing rock envelope—nephelinization.
1999 Geol. Mag. 136 343 Subsequent intrusion of the micromonzonite to higher levels has incorporated these products into the igneous complex, in which they have experienced varying degrees of nephelinization, pyrometamorphism, rheomorphism and veining.
This entry has been updated (OED Third Edition, September 2003; most recently modified version published online March 2022).
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n.1943