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单词 metabasite
释义

metabasiten.

Brit. /ˌmɛtəˈbasʌɪt/, /ˌmɛtəˈbeɪsʌɪt/, U.S. /ˌmɛdəˈbæˌsaɪt/, /ˌmɛdəˈbeɪˌsaɪt/
Origin: Formed within English, by derivation. Etymons: meta- prefix, basic adj., -ite suffix1.
Etymology: < meta- prefix + bas- (in basic adj.) + -ite suffix1 (see quot. 1907).
Geology.
A fully metamorphosed form of a basic rock such as basalt or dolerite.
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > rock > metamorphic rock > [noun] > other metamorphics
quartzite1823
mica-schist1826
amphibolite1833
hornfels1854
phthanite1854
hornblendite1874
psammite1882
tourmaline-rock1882
tourmaline-schist1882
jasperoid1898
skarn1901
metagabbro1904
metabasite1907
verdite1908
rodingite1911
siallite1933
tonstein1961
greenlandite1981
1907 J. J. Sederholm in Bull. Comm. Géol. Finlande 4 92 Metabasite = metamorphosed basic rocks, ranging from uralite-diabases and uralite-porphyries to amphibolic schists. The designation has been suggested by dr V. Hackman.
1940 F. F. Grout Kemp's Handbk. Rocks (ed. 6) 286 Metabasite, metamorphosed dolerite.
1977 A. Hallam Planet Earth 175 As most rocks within a broad chemical grouping—such as pelites or metabasites—have a number of minerals in common, reactions between the common set of minerals can be identified in many different individual rocks.
1997 Science 4 Apr. 91/1 We describe and interpret an occurrence of cristobalite in high-pressure..granulite facies garnet from a Middle Proterozoic..metabasite.
This is a new entry (OED Third Edition, March 2004; most recently modified version published online March 2022).
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n.1907
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