TERMIUM Plus®

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FACIES ZEOLITES [1 record]

Record 1 2011-05-16

English

Subject field(s)
  • Mineralogy
  • Petrography
DEF

The typical mineral facies of the burial metamorphism of sediments containing zeolites.

OBS

The critical zeolite of this facies is not just any zeolite but laumontite … which never occurs in unmetamorphosed sediments. Winkler, therefore, more accurately calls the zeolite facies the laumontite-prehnite-quartz facies.

OBS

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

French

Domaine(s)
  • Minéralogie
  • Pétrographie
CONT

Les faciès métamorphiques. [...] On distingue [...] : - faciès des zéolites (à laumontite, défini par la cristallinité de l'illite), qui marque la transition entre diagenèse et métamorphisme [...]

CONT

Les zéolites ne sont pas tous des minéraux de métamorphisme; certains peuvent se former en surface. En revanche, d'autres nécessitent des températures élevées; par exemple, la laumontite [...] n'apparaît qu'à 300 °C. Il y a donc transition entre les phénomènes de diagenèse qui transforment les sédiments en roches et le faciès à zéolites.

OBS

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

Spanish

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