单词 | pyroxenite |
释义 | pyroxeniten. 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). < n.1845 |
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