symonn.

Brit.

/ˈsʌɪmən/, U.S.

/ˈsaɪmən/

Etymology: variant of simmon n.¹

local.

Name for a kind of red shale; also attributive. symon fault n. an interruption of a seam of coal by shale or other material (see quots.).

ΘΚΠ

the world > the earth > minerals > mineral deposits > [noun] > stratum or bed > of coal > part of coal seam

symon fault1834

swilly1836

split1877

underply1883

wall-coal1886

the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > [noun] > shale > others

till1672

bass1686

bat1686

blue metal1699

scallop slate1711

black shale1730

shale-shiver1794

shale1825

till-stonec1830

Wenlock shale1834

famp1836

Boghead1858

oil shale1866

paper shale1874

symon1881

paste-rock1882

slasto1953

1834–6 Prestwich in Trans. Geol. Soc. (1840) 2nd Ser. V. 432 ‘Symon fault’.. is occasioned by the gradual..substitution of the coal by clay, shale, or sandstone,..the proportion of which rapidly increases, until it entirely replaces the coal.

1839 R. I. Murchison Silurian Syst. i. vii. 101 Even the coal..tapers away and disappears amid the shales and sandstones, constituting what are locally termed ‘Symonfaults’.

1881 G. F. Jackson Shropshire Word-bk. Suppl. Symon, a sort of red shale, same as Calaminca, q.v.—Colliery; M[iners'] T[erm].

This entry has not yet been fully updated (first published 1919; most recently modified version published online March 2022).

单词	symon
释义	symonn. Brit. /ˈsʌɪmən/, U.S. /ˈsaɪmən/ Etymology: variant of simmon n.¹ local. Name for a kind of red shale; also attributive. symon fault n. an interruption of a seam of coal by shale or other material (see quots.). ΘΚΠ the world > the earth > minerals > mineral deposits > [noun] > stratum or bed > of coal > part of coal seam symon fault1834 swilly1836 split1877 underply1883 wall-coal1886 the world > the earth > structure of the earth > constituent materials > rock > sedimentary rock > [noun] > shale > others till1672 bass1686 bat1686 blue metal1699 scallop slate1711 black shale1730 shale-shiver1794 shale1825 till-stonec1830 Wenlock shale1834 famp1836 Boghead1858 oil shale1866 paper shale1874 symon1881 paste-rock1882 slasto1953 1834–6 Prestwich in Trans. Geol. Soc. (1840) 2nd Ser. V. 432 ‘Symon fault’.. is occasioned by the gradual..substitution of the coal by clay, shale, or sandstone,..the proportion of which rapidly increases, until it entirely replaces the coal. 1839 R. I. Murchison Silurian Syst. i. vii. 101 Even the coal..tapers away and disappears amid the shales and sandstones, constituting what are locally termed ‘Symonfaults’. 1881 G. F. Jackson Shropshire Word-bk. Suppl. Symon, a sort of red shale, same as Calaminca, q.v.—Colliery; M[iners'] T[erm]. This entry has not yet been fully updated (first published 1919; most recently modified version published online March 2022). < n.1834
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