greywackegraywacken.

Brit.

/ˈɡreɪˌwaki/, U.S.

/ˈɡreɪˌwæki/

Forms: 1800s greywack, 1800s greywacké, 1800s greywackè, 1800s– graywacke, 1800s– greywacke.

Origin: A variant or alteration of another lexical item. Etymon: grauwacke n.

Etymology: Variant of grauwacke n., with assimilation of the first element to grey adj. N.E.D. (1900) gives the pronunciation as (grēⁱ·wækə) /ˈɡreɪwækə/.

Geology.

Originally: any of a series of coarse-grained, earthy sandstones and shales forming extensive deposits in the Harz Mountains and other parts of Europe. In later use: any coarse-grained, typically dark sandstone containing angular or partly rounded mineral and rock fragments in a fine-grained clayey matrix. Also as a count noun: a rock of this type. Cf. grauwacke n.

ΘΚΠ

the world > the earth > structure of the earth > age or period > stratigraphic units > [noun] > primary or Palaeozoic > Silurian > specific

grauwacke1794

greywacke1805

Wenlock formation1834

Trenton1854

obolite grit1859

Salina1863

Downtonian1900

the world > the earth > structure of the earth > constituent materials > rock > composite rock > [noun] > conglomerate > specific

pinnel1766

grauwacke1794

unguilite1799

greywacke1805

yolky-stone1805

nagelfluh1808

coombe rock1822

pebble bed1849

breccia1856

ceppo1881

banket1886

ouklip1892

crush-conglomerate1893

basal conglomerate1900

calcrete1902

rudite1904

fanglomerate1912

beach-rock1919

1805 R. Jameson Mineral. Descr. County of Dumfries 25 Moffat well..oozes out of a rock of compact grey wacke, which contains interspersed iron pyrites.

1808 R. Jameson Syst. Mineral. III. vii. 149 Grey-Wacké. Grau-Wacke.—Werner. This rock..is the most important rock of the transition class... It contains two kinds, viz. grey-wacke, and Grey-wacke Slate.

1811 J. Pinkerton Petralogy I. 293 Almost the whole of the mines in the Hartz are situated in greywack.

1833 C. Lyell Princ. Geol. III. 194 The fundamental rock of the Eifel is an ancient secondary sandstone and shale, to which the obscure and vague appellation of ‘graywacke’ has been given.

1849 R. I. Murchison Siluria viii. 172 From its southern margin..greywackès..rise from under the coal-fields.

1895 A. Harker Petrol. xvi. 193 The old term greywacke (Ger. Grauwacke) has been revived for a complex rock with grains of quartz, felspar, and other minerals and rocks united by a cement usually siliceous.

1950 N.Z. Jrnl. Agric. Jan. 16/3 Sandy silts, silts, clays, and greywacke shingle have been deposited by the Waipawa and Tukituki Rivers.

1963 W. C. Krumbein & L. L. Sloss Stratigr. & Sedimentation (ed. 2) v. 171 Many Precambrian and early Paleozoic graywackes are partially metamorphosed.

1990 P. Kearey & F. J. Vine Global Tectonics xi. 254 An upper group of clastic sediments, such as greywackes, sandstones, conglomerates and banded ironstones with cherts and limestones.

1999 J. White in J. White & J. Hodgson N.Z. Pasture & Crop Sci. i. 2/1 Much of the Southern alps..is made up of sedimentary rocks such as greywacke and argillite.

This entry has been updated (OED Third Edition, September 2013; most recently modified version published online March 2022).

单词	greywacke
释义	greywackegraywacken. Brit. /ˈɡreɪˌwaki/, U.S. /ˈɡreɪˌwæki/ Forms: 1800s greywack, 1800s greywacké, 1800s greywackè, 1800s– graywacke, 1800s– greywacke. Origin: A variant or alteration of another lexical item. Etymon: grauwacke n. Etymology: Variant of grauwacke n., with assimilation of the first element to grey adj. N.E.D. (1900) gives the pronunciation as (grēⁱ·wækə) /ˈɡreɪwækə/. Geology. Originally: any of a series of coarse-grained, earthy sandstones and shales forming extensive deposits in the Harz Mountains and other parts of Europe. In later use: any coarse-grained, typically dark sandstone containing angular or partly rounded mineral and rock fragments in a fine-grained clayey matrix. Also as a count noun: a rock of this type. Cf. grauwacke n. ΘΚΠ the world > the earth > structure of the earth > age or period > stratigraphic units > [noun] > primary or Palaeozoic > Silurian > specific grauwacke1794 greywacke1805 Wenlock formation1834 Trenton1854 obolite grit1859 Salina1863 Downtonian1900 the world > the earth > structure of the earth > constituent materials > rock > composite rock > [noun] > conglomerate > specific pinnel1766 grauwacke1794 unguilite1799 greywacke1805 yolky-stone1805 nagelfluh1808 coombe rock1822 pebble bed1849 breccia1856 ceppo1881 banket1886 ouklip1892 crush-conglomerate1893 basal conglomerate1900 calcrete1902 rudite1904 fanglomerate1912 beach-rock1919 1805 R. Jameson Mineral. Descr. County of Dumfries 25 Moffat well..oozes out of a rock of compact grey wacke, which contains interspersed iron pyrites. 1808 R. Jameson Syst. Mineral. III. vii. 149 Grey-Wacké. Grau-Wacke.—Werner. This rock..is the most important rock of the transition class... It contains two kinds, viz. grey-wacke, and Grey-wacke Slate. 1811 J. Pinkerton Petralogy I. 293 Almost the whole of the mines in the Hartz are situated in greywack. 1833 C. Lyell Princ. Geol. III. 194 The fundamental rock of the Eifel is an ancient secondary sandstone and shale, to which the obscure and vague appellation of ‘graywacke’ has been given. 1849 R. I. Murchison Siluria viii. 172 From its southern margin..greywackès..rise from under the coal-fields. 1895 A. Harker Petrol. xvi. 193 The old term greywacke (Ger. Grauwacke) has been revived for a complex rock with grains of quartz, felspar, and other minerals and rocks united by a cement usually siliceous. 1950 N.Z. Jrnl. Agric. Jan. 16/3 Sandy silts, silts, clays, and greywacke shingle have been deposited by the Waipawa and Tukituki Rivers. 1963 W. C. Krumbein & L. L. Sloss Stratigr. & Sedimentation (ed. 2) v. 171 Many Precambrian and early Paleozoic graywackes are partially metamorphosed. 1990 P. Kearey & F. J. Vine Global Tectonics xi. 254 An upper group of clastic sediments, such as greywackes, sandstones, conglomerates and banded ironstones with cherts and limestones. 1999 J. White in J. White & J. Hodgson N.Z. Pasture & Crop Sci. i. 2/1 Much of the Southern alps..is made up of sedimentary rocks such as greywacke and argillite. This entry has been updated (OED Third Edition, September 2013; most recently modified version published online March 2022). < n.1805
随便看	painworthy painwrung paip pair pair mating pair of bellows pair of brigandines pair of butts pair of callipers pair of cancels pair of colours pair of couples pair of dog couples pair of dog irons pair of drawers pair of eyeglasses pair of gears pair of hands pair of knives pair of monochords pair of moustaches pair of paternosters pair of pinsons pair of plates pair of pliers