单词 | metabasite |
释义 | metabasiten. 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). < n.1907 |
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