单词 | koswite |
释义 | koswiten. Geology. A coarse-grained peridotite consisting mainly of diopside, olivine, and magnetite. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > igneous rock > [noun] > plutonic rocks > peridotites wehrlite1861 harrisite1865 peridotite1882 cortlandtite1886 harzburgite1890 koswite1901 1901 Jrnl. Chem. Soc. 80 ii. 398 Associated with olivine-gabbros in the Solimask district, near the source of the Kosswa river, is a new type of basic eruptive rock to which the name koswite is given... As the magnetite decreases in amount and becomes idiomorphic, there is a passage from koswite to ordinary pyroxenite. 1922 Mineral. Abstr. I. 327 The mining district around Nikolae-Pavdinsk on the eastern slopes of the northern Urals..consists largely of basic igneous rocks (dunite.., &c., and the local types koswite, tilaite, [etc.]). 1964 Doklady Earth Sci. CLIV. 149/2 The exceptionally high contents of volatile components in kosvites (mainly apatite-ore pyroxenites) increase the acidity of the melt. Derivatives koˈswitic n. (also kosvitic) ΚΠ 1964 Doklady Earth Sci. CLIV. 149/2 In the case of a kosvitic melt, which itself contains a considerable quantity of volatile components. This entry has not yet been fully updated (first published 1933; most recently modified version published online December 2020). < n.1901 |
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