Marl

Marl

Fine-grained carbonate-rich mud; a calcareous clay which contains approximately 30 to 65 percent calcium carbonate.

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Part of Speech: noun
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Industry/Domain: Natural environment
Category: Coral reefs
Organization: NOAA
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marl

Building materials; Concrete

A calcareous clay, containing approximately 30 to 65 percent calcium carbonate (05003), found normally in extinct fresh wafer basins, swamps, or bottoms of shallow lakes.

marl

Natural environment; Coral reefs

Fine-grained carbonate-rich mud; a calcareous clay which contains approximately 30 to 65 percent calcium carbonate.

marl

Earth science; Soil science

Soft and unconsolidated calcium carbonate, usually mixed with varying amounts of clay or other impurities.

marl

Biology; Ecology

A light-gray earth made of carbonates from shells or fossils; can be either loose or firm. Used as a fertilizer or a source of lime for lime-poor soils.

marl

Natural environment; Speleology

Unconsolidated sedimentary rock consisting largely of calcium carbonate and clay; usage varies from calcareous clay to earthy limestone, and in some parts of the United States, ...

marl

Science; General science

In the most general use of this term, a sediment that consists of a mixture of calcium carbonate (CaCO 3 ) and any other constituents in varying proportions. Marls usually are ...

nodulose

Natural environment; Coral reefs

With small nodules, knobs or swellings.

fissure

Natural environment; Coral reefs

A deep and narrow depression cutting across the reef front with origins relating to jointing planes in the reef limestone or non-limestone bedrock.

damselfish

Natural environment; Coral reefs

A large family (Pomacentridae) of bony fishes which are abundant and common inhabitants of coral reefs. They possess robust, deep, and laterally compressed bodies. The majority of ...

complementary resources

Natural environment; Coral reefs

A pair of resources for which consumption by the consumer of one resource reduces its requirement for the other.

antennule

Natural environment; Coral reefs

A small antenna, especially the first pair of antennae in crustaceans.

odontophore

Natural environment; Coral reefs

A tooth-bearing structure found in most mollusks, except bivalves. It consists of several muscles and a cartilage which support the radula and radula sac; the term is also applied ...

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