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SUBALUMINEUX [1 record]

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Alphabetical list of terms

Record 1 2009-06-22

English

Subject field(s)
  • Geochemistry
  • Petrography
CONT

The more silica-rich granitoids have an ASI [Alumina Saturation Index] >1 and are either peraluminous or subaluminous, respectively.

OBS

In the Shand classification of igneous rocks, [was said of] a division embracing those rocks in which the molecular proportion of alumina is equal to, or slightly greater than, that of soda and potash combined.

OBS

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

Key term(s)
  • sub-aluminous

French

Domaine(s)
  • Géochimie
  • Pétrographie
DEF

Se dit des roches magnétiques pauvres en alumine.

OBS

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

Key term(s)
  • sub-alumineux

Spanish

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