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单词 koswite
释义

koswiten.

/ˈkɒzwʌɪt/
Forms: Also kosvite.
Etymology: < French koswite (Duparc & Pearce 1901, in Compt. Rend. CXXXII. 892), < the name of the Kosw-inski Mountains, Pawda, in the Middle Urals: see -ite suffix1.
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).
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n.1901
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