rock dustingn.

Brit.

/ˈrɒk ˌdʌstɪŋ/, U.S.

/ˈrɑk ˌdəstɪŋ/

Origin: Formed within English, by derivation. Etymons: rock dust n., -ing suffix¹.

Etymology: < rock dust n. + -ing suffix¹. Compare slightly later rock dust v.

North American. Mining.

The spreading of pulverized rock in a coal mine in order to reduce the risk of coal-dust explosions. Cf. stone-dusting n. at stone n. Compounds 2a.

ΘΚΠ

society > occupation and work > industry > mining > [noun] > other specific mining processes > in coal-mining

outstroke1747

holing1841

coal-cutting1842

patio1845

sumping1849

bottoming1856

salting1856

patio process1862

spragging1865

yardage1877

booming1880

brushing1883

filling1883

sounding1883

yard-work1883

blanketing1884

goafing1888

freezing process1889

power loading1901

bashing1905

rock dusting1915

mucking1918

solid stowing1929

stone-dusting1930

roof bolting1949

rock bolting1955

1915 G. S. Rice What Miner can do to prevent Explosions Gas & Coal Dust (U.S. Bureau Mines: Miners' Circular No. 21) 17 Watering in dry mines should be done every day, whereas rock dusting, if thoroughly done, should keep the entries in safe condition for several months.

1932 Durant (Okla.) Daily Democrat 10 Mar. 4/5 By rock dusting,..this coal dust is mixed with an equal amount of rock dust, the latter lowering the ignition point of the mixture.

1968 Sci. News 94 567/2 Rock dusting, a principal safety measure, is aimed at preventing a secondary coal dust explosion.

1998 D. Lockard Coal iv. 68 Miners had pleaded for years that the mine had dangerous amounts of coal dust not adequately countered with rock-dusting.

This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).

单词	rock dusting
释义	rock dustingn. Brit. /ˈrɒk ˌdʌstɪŋ/, U.S. /ˈrɑk ˌdəstɪŋ/ Origin: Formed within English, by derivation. Etymons: rock dust n., -ing suffix¹. Etymology: < rock dust n. + -ing suffix¹. Compare slightly later rock dust v. North American. Mining. The spreading of pulverized rock in a coal mine in order to reduce the risk of coal-dust explosions. Cf. stone-dusting n. at stone n. Compounds 2a. ΘΚΠ society > occupation and work > industry > mining > [noun] > other specific mining processes > in coal-mining outstroke1747 holing1841 coal-cutting1842 patio1845 sumping1849 bottoming1856 salting1856 patio process1862 spragging1865 yardage1877 booming1880 brushing1883 filling1883 sounding1883 yard-work1883 blanketing1884 goafing1888 freezing process1889 power loading1901 bashing1905 rock dusting1915 mucking1918 solid stowing1929 stone-dusting1930 roof bolting1949 rock bolting1955 1915 G. S. Rice What Miner can do to prevent Explosions Gas & Coal Dust (U.S. Bureau Mines: Miners' Circular No. 21) 17 Watering in dry mines should be done every day, whereas rock dusting, if thoroughly done, should keep the entries in safe condition for several months. 1932 Durant (Okla.) Daily Democrat 10 Mar. 4/5 By rock dusting,..this coal dust is mixed with an equal amount of rock dust, the latter lowering the ignition point of the mixture. 1968 Sci. News 94 567/2 Rock dusting, a principal safety measure, is aimed at preventing a secondary coal dust explosion. 1998 D. Lockard Coal iv. 68 Miners had pleaded for years that the mine had dangerous amounts of coal dust not adequately countered with rock-dusting. This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022). < n.1915
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