Definitionadj. composed of or containing or resembling calcium carbonate or calcite or chalk
Last update: August 15, 2015
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In many parts, particularly in the eastern basin, a calcareous or siliceous crust, from half an inch to three inches in thickness, is met with; and Natterer suggested that the formation of this crust may be due to the production of carbonate of ammonium where deposits containing organic matter are undergoing oxidation, and the consequent precipitation of carbonate of lime and other substances from the waters nearer the surface. [Please select]
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Each tubercle, however small, usually holds a particle of calcareous matter in its centre. [Please select]
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It is only found in certain sponges with calcareous spicules. [Please select]
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CALCAREOUS CONCRETION SIMULATING A FOSSIL PALM-STEM, BOAZ ISLAND, BERMUDAS. [Please select]
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Gradually a number of minute calcareous spines and plates make their appearance (Fig.) [Please select]
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The house is calcareous, and as solid as a rock. [Please select]
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Some of these trees had the most calcareous foundations anybody ever saw. [Please select]
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