A calcium carbonate or lime-rich mud or mudstone which contains variable amounts of clays and silt.
Marl or marlstone is a calcium carbonate or lime-rich mud or mudstone which contains variable amounts of clays and silt. Marl or marlstone is a calcium carbonate or lime-rich mud or mudstone which contains variable amounts of clays and silt. The dominant carbonate mineral in most marls is calcite, but other carbonate minerals such as aragonite, dolomite, and siderite may be present. Common materials used to manufacture cement include limestone, shells, and chalk or marl combined with shale, clay, slate, blast furnace slag, silica sand, and iron ore. These ingredients, when heated at high temperatures form a rock-like substance that is ground into the fine powder that we commonly think of as cement. Definition of MARL. : a loose or crumbling earthy deposit (as of sand, silt, or clay) that contains a substantial amount of calcium carbonate. — marly \ˈmaer-ˈmär\ lē. Adjective see marl defined for. KIDS. advertisement While the specific composition and properties of the marl varied depending on what layer is found in, blue marl was generally composed of 38.70% silicic acid and sand, 30.67% oxide of iron, 13.91% carbonate of lime, 11.22% water, 4.47% potash, 1.21% magnesia, 1.14% phosphoric acid, and .31% sulphuric acid. An unconsolidated sedimentary rock or soil consisting of clay and lime, formerly used as fertilizer: the ancient right to dig marl for fertilizer [count noun]: the road cuttings show red and green marls. Marl was originally an old term loosely applied to a variety of materials, most of which occur as loose, earthy deposits consisting chiefly of an intimate mixture of clay and calcium carbonate, formed under freshwater conditions; specifically an earthy substance containing 35–65% clay and 65–35% carbonate. Wiktionary (0.00 / 0 votes) Rate this definition: marl (Noun). A mixed earthy substance, consisting of carbonate of lime, clay, and possibly sand, in very variable proportions, and accordingly designated as calcareous, clayey, or sandy.
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what is marl material