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Paleoclimatology (thesaurus)

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Concept information

Terme préférentiel

ooid  

Définition

  • Ooids are small (commonly ≤2 mm in diameter), spheroidal, "coated" (layered) sedimentary grains, usually composed of calcium carbonate, but sometimes made up of iron- or phosphate-based minerals. Ooids usually form on the sea floor, most commonly in shallow tropical seas (around the Bahamas, for example, or in the Persian Gulf). After being buried under additional sediment, these ooid grains can be cemented together to form a sedimentary rock called an oolite. Oolites usually consist of calcium carbonate; these belong to the limestone rock family. (Adapted from: https://en.wikipedia.org/wiki/Ooid)

Concept générique

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URI

http://data.loterre.fr/ark:/67375/QX8-K875VWVG-N

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