Concept
Alternate Profiles
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- Preferred Labelskos:prefLabel
ooid
- URI
- http://resource.geosciml.org/classifier/cgi/particletype/ooid ↗Go to the persistent identifier link
- Within Vocab
- Particle Type
| Preferred Labelskos:prefLabel | ooid |
|---|---|
| Definitionskos:definition | A general, nongenetic term for a particle that resembles an oolith in outer appearance and size- (Jackson, 1997, p. 447). Hallsworth and Knox (1999, p. 27) describe ooids as coated grains that typically are spherical or ellipsoidal in shape, with the degree of roundness increasing outward. Concentric to semi-concentric coats are smoothly and evenly laminated. A nucleus usually is present, and may have a composition different from the coatings. Biogenic structures are not obvious. NADMSC SLTTs (2004) considers synomous with oolith. |
| Broaderbroader |
coated particle
|
| See AlsoseeAlso | Particle Type |
| Is Defined ByisDefinedBy | Particle Type |