TERMIUM Plus®

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ULTRABASIC PLUTON [1 record]

Record 1 2001-09-27

English

Subject field(s)
  • Petrography
  • Geochemistry

French

Domaine(s)
  • Pétrographie
  • Géochimie
OBS

ultrabasique : S'applique aux roches magmatiques de couleur sombre contenant moins de 45 % en poids de SiO2, d'où absence de cristaux de quartz et très riches en Mg, Fe et Ca (40 % et plus).

Key term(s)
  • roche plutonienne ultramafique

Spanish

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