marl

marl1
marlacious /mahr lay"sheuhs/, marly, adj.
/mahrl/, n.
1. Geol. a friable earthy deposit consisting of clay and calcium carbonate, used esp. as a fertilizer for soils deficient in lime.
2. Archaic. earth.
v.t.
3. to fertilize with marl.
[1325-75; ME marle < MD < OF < ML margila, dim. of L marga, said to be < Gaulish]
marl2
/mahrl/, v.t. Naut.
to wind (a rope) with marline, every turn being secured by a hitch.
[1400-50; late ME marlyn to ensnare; akin to OE marels cable. See MOOR2]

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Earthy mixture of fine-grained minerals, which range widely in composition.

Lime (calcium carbonate) is present as shell fragments of snails and bivalves, or as powder mixed with clay and silica-containing silt. Large deposits contain 80–90% calcium carbonate and less than 3% magnesium carbonate. With decreasing amounts of lime, calcium-containing marls are called clays and clayey limestones. Marls rich in potash (potassium carbonate), called greensand marls, are used as water softeners. Marls have also been used in the manufacture of insulating material and portland cement, as liming material, and in making bricks.

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      city, North Rhine–Westphalia Land (state), western Germany. It is situated in the Ruhr industrial district, just northwest of Recklinghausen. First mentioned about 800 as a relatively large settlement, the Marl district was sold to the archbishops of Cologne about 1000 and thereafter was part of the “Vest Recklinghausen” of the prince electors. After 1802 it passed to the dukes of Arenberg, who held it as a fief of Prussia from 1815. It grew with the development of coal and iron ore mining in the late 19th century, and the town was chartered in 1936. Chemical factories and heavy industry traditionally supplemented coal mining, but these declined in the late 20th century. Pop. (2003 est.) 91,748.

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Universalium. 2010.

Look at other dictionaries:

  • Marl — Marl …   Wikipédia en Français

  • Marl — Marl, v. t. [imp. & p. p. {Marled}; p. pr. & vb. n. {Marling}.] [Cf. F. marner. See {Marl}, n.] To overspread or manure with marl; as, to marl a field. [1913 Webster] …   The Collaborative International Dictionary of English

  • marl — marl1 [märl] n. [ME < OFr marle < ML margila (> Ger mergel), dim. of L marga, marl < Gaul] 1. a mixture of clay, sand, and limestone in varying proportions, that is soft and crumbly and usually contains shell fragments 2. any loose,… …   English World dictionary

  • marl — marl·berry; marl·bor·ough; marl·ite; marl; …   English syllables

  • marl|y — «MAHR lee», adjective, marl|i|er, marl|i|est. of, like, or full of marl …   Useful english dictionary

  • Marl — Marl, n. [OF. marle, F. marne, LL. margila, dim. of L. marga marl. Originally a Celtic word, according to Pliny, xvii. 7: Quod genus terr[ae] Galli et Britanni margam vocant. [root]274.] A mixed earthy substance, consisting of carbonate of lime,… …   The Collaborative International Dictionary of English

  • Marl — Marl, v. t. [See {Marline}.] (Naut.) To cover, as part of a rope, with marline, marking a pecular hitch at each turn to prevent unwinding. [1913 Webster] {Marling spike}. (Naut.) See under {Marline}. [1913 Webster] …   The Collaborative International Dictionary of English

  • marl — [ma:l US ma:rl] n [U] 1.) soil consisting of ↑lime and ↑clay 2.) cloth which has pale threads running through another colour ▪ a jacket available in black or grey marl …   Dictionary of contemporary English

  • marl — clayey soil used for fertilizer, late 14c., from O.Fr. marle (Mod.Fr. marne), from L.L. marglia, dim. of L. marga marl, which is said by Pliny to be a Gaulish word, but modern Celtic cognates are considered to be borrowed from English or French.… …   Etymology dictionary

  • marl — Ⅰ. marl [1] ► NOUN ▪ an unconsolidated sedimentary rock or soil consisting of clay and lime, formerly used as fertilizer. ORIGIN Old French marle, from Latin marga, of Celtic origin. Ⅱ. marl [2] ► NOUN ▪ a mottled yarn or fabric …   English terms dictionary

  • Marl — Marl, so v.w. Mergel …   Pierer's Universal-Lexikon

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