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marl    
n. 泥灰,泥灰土,土
vt. 撒泥灰土

泥灰,泥灰土,土撒泥灰土

marl
n 1: a loose and crumbling earthy deposit consisting mainly of
calcite or dolomite; used as a fertilizer for soils
deficient in lime

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: [hand]Greensand is often called {marl}, because it is a
useful fertilizer. The greensand beds of the American
Cretaceous belong mostly to the Upper Cretaceous.
[1913 Webster]


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]


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]


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 terrae Galli et Britanni margam vocant."
[root]274.]
A mixed earthy substance, consisting of carbonate of lime,
clay, and sand, in very variable proportions, and accordingly
designated as calcareous, clayey, or sandy. See {Greensand}.
[1913 Webster]


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  • Marl - Wikipedia
    Marl is an earthy material rich in carbonate minerals, clays, and silt When hardened into rock, this becomes marlstone It is formed in marine or freshwater environments, often through the activities of algae
  • Marl: Mineral information, data and localities. - mindat. org
    Marl is usually pale grey or white; it can be formed under marine or more commonly freshwater conditions A calcium-carbonate rich mud containing variable amounts of clays and silt
  • Marl | Sedimentary Rock, Calcium Carbonate Clay | Britannica
    Marl, old term used to refer to an earthy mixture of fine-grained minerals The term was applied to a great variety of sediments and rocks with a considerable range of composition
  • Marl - Geology is the Way
    Marls are sedimentary rocks with mixed composition, consisting in part of carbonate sediment (carbonate ooze) and in part of fine-grained siliciclastic sediment (clay and silt)
  • MARL Definition Meaning - Merriam-Webster
    The meaning of MARL is a loose or crumbling earthy deposit (as of sand, silt, or clay) that contains a substantial amount of calcium carbonate
  • Marl - Wat On Earth | University of Waterloo
    Marl forms through the combined action of algae (e g Chara) and other aquatic plants and animals living in hard water streams and springs, rich in dissolved calcium carbonate
  • Marl - chemeurope. com
    Marl or Marlstone is a calcium carbonate or lime -rich mud or mudstone which contains variable amounts of clays and aragonite
  • Marl Mineral - Meaning, Formation, Types, Usage and FAQs
    Marl is a type of sedimentary rock that is a natural mixture of calcium carbonate (the main component of limestone) and clay It's often found as a soft, earthy deposit and is sometimes called marlstone
  • Marl Explained
    Marl is an earthy material rich in carbonate minerals, clays, and silt When hardened into rock, this becomes marlstone It is formed in marine or freshwater environments, often through the activities of algae
  • Marl - Simple English Wikipedia, the free encyclopedia
    Marl is an earthy material rich in carbonate minerals, clays, and silt When hardened into rock, it becomes marlstone It is created in marine or freshwater environments Usually it is found through the activities of algae Marl makes up the lower part of the cliffs of Dover





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