- greensand marl
- greensand marl,a variety of marl having a low content of calcium carbonate and high amounts of potash and phosphorus, used as a fertilizer and as a water softener.
Useful english dictionary. 2012.
greensand marl
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marl — Greensand Green sand ( s[a^]nd ), n. (Geol.) A variety of sandstone, usually imperfectly consolidated, consisting largely of glauconite, a silicate of iron and potash of a green color, mixed with sand and a trace of phosphate of lime. [1913… … The Collaborative International Dictionary of English
Greensand — Green sand ( s[a^]nd ), n. (Geol.) A variety of sandstone, usually imperfectly consolidated, consisting largely of glauconite, a silicate of iron and potash of a green color, mixed with sand and a trace of phosphate of lime. [1913 Webster] Note:… … The Collaborative International Dictionary of English
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 — 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.… … Universalium
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