diatomite

A Dictionary of Earth Sciences | 1999 | 242 words | Copyright

diatomite Diatom-rich sediment, which has been laid down in a lacustrine or deep-sea environment. The diatom cell wall is made from silica, therefore the sediment is siliceous. See BACILLARIOPHYCEAE; DIATOMACEOUS EARTH; and RADIOLARIAN EARTH.

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AILSA ALLABY and MICHAEL ALLABY. "diatomite." A Dictionary of Earth Sciences. 1999. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-diatomite.html