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Ooid facts for kids

Kids Encyclopedia Facts
JoultersCayOoids
Ooids
OoidSurface01
Ooids on the surface of an oolite limestone. Carmel Formation (Middle Jurassic) of southern Utah
CarmelOoids
Thin-section of calcitic ooids from an oolite

An ooid is a small rounded sedimentary rock. Like sand grains, ooids have a diameter of 2 mm or less. Larger grains formed the same way as ooids are called pisoids. Rock made of ooids is oolite.

Images for kids

  • Ooids, Joulter Cays, Bahamas

    Modern ooids from a beach on Joulter Cays, The Bahamas.

  • Ooimmuration Carmel Fm Jurassic

    Fossils ooimmured in ooids from the Carmel Formation (Middle Jurassic of southern Utah).

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Ooid Facts for Kids. Kiddle Encyclopedia.