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单词 pyroxenite
释义

pyroxeniten.

Brit. /pʌɪˈrɒksənʌɪt/, U.S. /paɪˈrɑksəˌnaɪt/, /pəˈrɑksəˌnaɪt/
Forms: 1800s–1900s pyroxenyte, 1800s– pyroxenite.
Origin: Formed within English, by derivation. Etymons: pyroxene n., -ite suffix1.
Etymology: < pyroxene n. + -ite suffix1.
Geology.
Rock that consists chiefly of minerals of the pyroxene group, typically of igneous origin and found in association with gabbro and peridotite; a rock of this kind.
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > other igneous
clay-stone1777
variolite1781
pyroxenite1845
aplite1862
anorthosite1863
teschenite1866
yellow ground1883
kimberlite1887
sanidinite1887
websterite1890
essexite1891
monzonite1895
missourite1896
theralite1898
heronite1899
kentallenite1900
carbonatite1924
wonderstone1936
1845 G. Law tr. J. B. Boussingault Rural Econ. iv. 259 In trachite..the amphibolite is replaced by pyroxenite [Fr. pyroxène].
1856 Proc. Royal Soc. 8 458 It is the reaction between the siliceous matters and the carbonates..which has given rise to the serpentines, talcs, pyroxenites, [etc.].
1901 Amer. Geologist 28 137 Coarse pyroxenytes are found along the boundary between the noryte and serpentine.
1940 F. F. Grout Kemp's Handbk. Rocks (ed. 6) x. 230 Talc-schists in America are largely derived from peridotites and pyroxenites.
1999 Jrnl. Field Archaeol. 28 406/2 The Palabora complex..consists of pyroxenite, syenite, and carbonatite with about 1 percent copper.

Derivatives

pyˌroxeˈnitic adj. relating to, containing, or of the nature of pyroxenite.
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [adjective] > volcanic > lava > vitreous
obsidian1601
semi-vitreous1813
perlitic1879
pyroxenitic1914
1914 R. A. Daly Igneous Rocks & their Origin iii. xv. 325 Dolerite sills cutting Permian strata of..Zululand have split into anorthositic and pyroxenitic phases.
1989 Jrnl. Petrol. 30 179 The komatiitic series will be hereafter divided into peridotitic.., pyroxenitic.., and basaltic.
This entry has been updated (OED Third Edition, December 2007; most recently modified version published online March 2022).
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n.1845
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