TERMIUM Plus®

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CRYPTALGAL [1 record]

Record 1 2009-09-29

English

Subject field(s)
  • Algae
  • Paleontology
  • Petrography
DEF

Said of a structure thought to have been produced by algae, although without having the proof.

CONT

Algal or cryptalgal fabrics are common. Especially large mounds in the Nopah Range lie on the down-dropped south side of a contemporaneous fault, indicating tectonic control of size and location.

OBS

cryptalgal: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Algues
  • Paléontologie
  • Pétrographie
DEF

Se dit d'une structure dont on pense qu'elle a été produite par des algues, sans en avoir l'évidence.

CONT

On a pu distinguer neuf faciès dans les trois membres de la Formation de La Vieille : biomicrite remaniée, calcaire à pelletoïdes, intraclastes et spongiostromates, boundstone à Rugueux coloniaux et spongiostromates, boundstone à algues et cladopores, biomicrite à oncolithes, laminites cryptalgaires, micrite dense à fénestrelles, calcarénite à oolithes et biomicrite encroûtée.

OBS

cryptalgaire : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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