green schistn.

Brit.

/ˈɡriːn ˌʃɪst/, U.S.

/ˈɡrin ˈʃɪst/

Origin: Formed within English, by compounding. Etymons: green adj., schist n.¹

Etymology: < green adj. + schist n.¹

Geology.

A schist of a greenish colour; spec. (usually in form greenschist) a schistose or foliose rock with a greenish colour resulting from an abundance of chlorite, epidote, and albite, and formed by metamorphism of basic igneous rocks.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > rock > metamorphic rock > [noun] > schist > varieties of

hammochrysos1706

hornslate1791

hornblende slate1794

horn porphyry1794

horn-schist1799

mica-slate1809

green schist1817

hornblende schist1821

kinzigite1878

phyllite1878

spilosite1882

mylonite1885

1817 Jrnl. Acad. Sci. Philadelphia 1 136 A part of the island consists of a stratified rock, in the form of a green schist, crossing the island from north to south.

1841 Jrnl. Royal Geogr. Soc. 11 68 We commenced the ascent of the Sari-Burd, a mountain of brown, blue, and green schists.

1890 Bull. U.S. Geol. Surv. No. 62. iv. 143 The branching dike in the wall of greenschist and granite.

1926 G. W. Tyrrell Princ. Petrol. xv. 259 A green schist composed of chlorite, epidote, and albite.

1976 E. Erkan in H. Falke Continental Permian in Central, West, & South Europe 141 These marbles contain basic volcanics which have been metamorphosed to greenschists.

2001 Art Room Catal. Autumn 33/2 This regal statue is a replica of an Egyptian royal head carved from smooth green schist.

Compounds

greenschist facies n. [after German Grünsteinschiefer ( G. F. Naumann Lehrb. der Geognosie (1849) I. 561, 985)] a facies (facies n. 3b) typified by the minerals characteristic of greenschists, thought to result from metamorphism at moderate temperature and pressure.

ΚΠ

1920 Norsk Geol. Tidsskrift 6 162 The rocks of the greenschist facies belong to the uppermost zone of the lithosphere and chiefly originate under considerable stress.

1990 P. Kearey & F. J. Vine Global Tectonics xi. 254 Greenstone belts..exhibit a low-pressure regional metamorphism of the greenschist facies.

2002 R. A. Strachan et al. in N. H. Trewin Geol. Scotl. (ed. 4) iv. 119/1 Obduction was accompanied by widespread greenschist facies metamorphism of the ophiolite.

This is a new entry (OED Third Edition, June 2011; most recently modified version published online March 2022).

单词	green schist
释义	green schistn. Brit. /ˈɡriːn ˌʃɪst/, U.S. /ˈɡrin ˈʃɪst/ Origin: Formed within English, by compounding. Etymons: green adj., schist n.¹ Etymology: < green adj. + schist n.¹ Geology. A schist of a greenish colour; spec. (usually in form greenschist) a schistose or foliose rock with a greenish colour resulting from an abundance of chlorite, epidote, and albite, and formed by metamorphism of basic igneous rocks. ΘΚΠ the world > the earth > structure of the earth > constituent materials > rock > metamorphic rock > [noun] > schist > varieties of hammochrysos1706 hornslate1791 hornblende slate1794 horn porphyry1794 horn-schist1799 mica-slate1809 green schist1817 hornblende schist1821 kinzigite1878 phyllite1878 spilosite1882 mylonite1885 1817 Jrnl. Acad. Sci. Philadelphia 1 136 A part of the island consists of a stratified rock, in the form of a green schist, crossing the island from north to south. 1841 Jrnl. Royal Geogr. Soc. 11 68 We commenced the ascent of the Sari-Burd, a mountain of brown, blue, and green schists. 1890 Bull. U.S. Geol. Surv. No. 62. iv. 143 The branching dike in the wall of greenschist and granite. 1926 G. W. Tyrrell Princ. Petrol. xv. 259 A green schist composed of chlorite, epidote, and albite. 1976 E. Erkan in H. Falke Continental Permian in Central, West, & South Europe 141 These marbles contain basic volcanics which have been metamorphosed to greenschists. 2001 Art Room Catal. Autumn 33/2 This regal statue is a replica of an Egyptian royal head carved from smooth green schist. Compounds greenschist facies n. [after German Grünsteinschiefer ( G. F. Naumann Lehrb. der Geognosie (1849) I. 561, 985)] a facies (facies n. 3b) typified by the minerals characteristic of greenschists, thought to result from metamorphism at moderate temperature and pressure. ΚΠ 1920 Norsk Geol. Tidsskrift 6 162 The rocks of the greenschist facies belong to the uppermost zone of the lithosphere and chiefly originate under considerable stress. 1990 P. Kearey & F. J. Vine Global Tectonics xi. 254 Greenstone belts..exhibit a low-pressure regional metamorphism of the greenschist facies. 2002 R. A. Strachan et al. in N. H. Trewin Geol. Scotl. (ed. 4) iv. 119/1 Obduction was accompanied by widespread greenschist facies metamorphism of the ophiolite. This is a new entry (OED Third Edition, June 2011; most recently modified version published online March 2022). < n.1817
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