Coal measures

Coal measures
Coal Coal (k[=o]l), n. [AS. col; akin to D. kool, OHG. chol, cholo, G. kohle, Icel. kol, pl., Sw. kol, Dan. kul; cf. Skr. jval to burn. Cf. {Kiln}, {Collier}.] 1. A thoroughly charred, and extinguished or still ignited, fragment from wood or other combustible substance; charcoal. [1913 Webster]

2. (Min.) A black, or brownish black, solid, combustible substance, dug from beds or veins in the earth to be used for fuel, and consisting, like charcoal, mainly of carbon, but more compact, and often affording, when heated, a large amount of volatile matter. [1913 Webster]

Note: This word is often used adjectively, or as the first part of self-explaining compounds; as, coal-black; coal formation; coal scuttle; coal ship. etc. [1913 Webster]

Note: In England the plural coals is used, for the broken mineral coal burned in grates, etc.; as, to put coals on the fire. In the United States the singular in a collective sense is the customary usage; as, a hod of coal. [1913 Webster]

{Age of coal plants}. See {Age of Acrogens}, under {Acrogen}.

{Anthracite} or {Glance coal}. See {Anthracite}.

{Bituminous coal}. See under {Bituminous}.

{Blind coal}. See under {Blind}.

{Brown coal} or {Brown Lignite}. See {Lignite}.

{Caking coal}, a bituminous coal, which softens and becomes pasty or semi-viscid when heated. On increasing the heat, the volatile products are driven off, and a coherent, grayish black, cellular mass of coke is left.

{Cannel coal}, a very compact bituminous coal, of fine texture and dull luster. See {Cannel coal}.

{Coal bed} (Geol.), a layer or stratum of mineral coal.

{Coal breaker}, a structure including machines and machinery adapted for crushing, cleansing, and assorting coal.

{Coal field} (Geol.), a region in which deposits of coal occur. Such regions have often a basinlike structure, and are hence called {coal basins}. See {Basin}.

{Coal gas}, a variety of carbureted hydrogen, procured from bituminous coal, used in lighting streets, houses, etc., and for cooking and heating.

{Coal heaver}, a man employed in carrying coal, and esp. in putting it in, and discharging it from, ships.

{Coal measures}. (Geol.) (a) Strata of coal with the attendant rocks. (b) A subdivision of the carboniferous formation, between the millstone grit below and the Permian formation above, and including nearly all the workable coal beds of the world.

{Coal oil}, a general name for mineral oils; petroleum.

{Coal plant} (Geol.), one of the remains or impressions of plants found in the strata of the coal formation.

{Coal tar}. See in the Vocabulary.

{To haul over the coals}, to call to account; to scold or censure. [Colloq.]

{Wood coal}. See {Lignite}. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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Look at other dictionaries:

  • coal measures — n. 1. coal beds or strata 2. sedimentary Carboniferous rocks that include coal bearing strata …   English World dictionary

  • Coal-Measures — (spr. kōl méschers), aus Schiefertonen, Sandsteinen und Kohlenflözen bestehende oberkarbonische Schichten auf den britischen Inseln, s. Steinkohlenformation …   Meyers Großes Konversations-Lexikon

  • Coal Measures — British coalfields in the nineteenth century. The Coal Measures is a lithostratigraphical term for the coal bearing part of the Upper Carboniferous System. It represents the remains of fluvio deltaic sediment, and consists mainly of clastic rocks …   Wikipedia

  • coal measures — Geol. 1. coal bearing strata. 2. (caps.) in Europe, a portion of the Carboniferous System, characterized by widespread coal deposits. [1655 65] * * * Major division of Upper Carboniferous (323–290 million years ago) rocks and time in Great… …   Universalium

  • coal measures — coal′ meas ures n. pl. 1) gel coal bearing strata 2) gel (caps.) a portion of the Carboniferous System characterized by widespread coal deposits …   From formal English to slang

  • Coal Measures Group — The Coal Measures Group is a lithostratigraphical term coined to refer to the coal bearing succession of rock strata which occur in Great Britain within the Westphalian Stage of the Carboniferous Period. The Coal Measures Group is preceded… …   Wikipedia

  • Coal Measures — /ˈkoʊl mɛʒəz/ (say kohl mezhuhz) plural noun Geology 1. a portion of the carboniferous system in Europe or North America, characterised by coal deposits. 2. a portion of the Permian system in the Southern Hemisphere and India characterised by… …  

  • coal-measures — n. pl. Bed of coal, strata of coal, carbomferous group …   New dictionary of synonyms

  • coal measures — noun plural : beds of coal with the associated rocks varying in thickness from a few feet to several thousand feet and consisting of shales, sandstones, limestones, and conglomerates with interstratified beds of coal and occasionally of iron ore …   Useful english dictionary

  • coal measures — noun plural Date: 1829 beds of coal with the associated rocks …   New Collegiate Dictionary

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