nepheliniten.

Brit.

/ˈnɛfəlᵻnʌɪt/,

/ˈnɛfl̩ᵻnʌɪt/, U.S.

/ˈnɛfələˌnaɪt/

Origin: Formed within English, by derivation; modelled on a German lexical item. Etymons: nepheline n., -ite suffix¹.

Etymology: < nepheline n. + -ite suffix¹, after German Nephelinit (J. Roth Gesteins-Analysen in tabellarischer Übersicht u. mit kritischen Erläuterungen (1861) l).

Geology.

A fine-grained basaltic volcanic rock containing significant amounts of nepheline and very little alkali feldspar.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > volcanic rocks > other volcanics

tarras1612

greystone1781

trass1794

rhyolite1861

nephelinite1863

metavolcanic1942

1863 J. D. Dana Man. Geol. 89 Nephelinite,..a crystalline granular volcanic rock consisting of nepheline and augite with some magnetic iron.

1903 A. Geikie Text-bk. Geol. (ed. 4) I. 237 Nephelinite is found in many of the districts where Nepheline-basalt occurs.

1965 G. J. Williams Econ. Geol. N.Z. xi. 168/1 A volcanism of late Tertiary age, comprizing rock types ranging from basalts, basanites and nephelinites to phonolites and trachytes.

1990 Jrnl. Petrol. 31 1203 Petrographically, these basanites are similar to the transitional nephelinites at Bow Hill, although they are richer in zeolite (analcime).

This entry has been updated (OED Third Edition, September 2003; most recently modified version published online March 2022).

单词	nephelinite
释义	nepheliniten. Brit. /ˈnɛfəlᵻnʌɪt/, /ˈnɛfl̩ᵻnʌɪt/, U.S. /ˈnɛfələˌnaɪt/ Origin: Formed within English, by derivation; modelled on a German lexical item. Etymons: nepheline n., -ite suffix¹. Etymology: < nepheline n. + -ite suffix¹, after German Nephelinit (J. Roth Gesteins-Analysen in tabellarischer Übersicht u. mit kritischen Erläuterungen (1861) l). Geology. A fine-grained basaltic volcanic rock containing significant amounts of nepheline and very little alkali feldspar. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > volcanic rocks > other volcanics tarras1612 greystone1781 trass1794 rhyolite1861 nephelinite1863 metavolcanic1942 1863 J. D. Dana Man. Geol. 89 Nephelinite,..a crystalline granular volcanic rock consisting of nepheline and augite with some magnetic iron. 1903 A. Geikie Text-bk. Geol. (ed. 4) I. 237 Nephelinite is found in many of the districts where Nepheline-basalt occurs. 1965 G. J. Williams Econ. Geol. N.Z. xi. 168/1 A volcanism of late Tertiary age, comprizing rock types ranging from basalts, basanites and nephelinites to phonolites and trachytes. 1990 Jrnl. Petrol. 31 1203 Petrographically, these basanites are similar to the transitional nephelinites at Bow Hill, although they are richer in zeolite (analcime). This entry has been updated (OED Third Edition, September 2003; most recently modified version published online March 2022). < n.1863
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