TERMIUM Plus®

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REACTION BORDER [1 record]

Record 1 2008-08-15

English

Subject field(s)
  • Geochemistry
DEF

Rim formed around a mineral grain as it reacts with surrounding magma.

OBS

[This feature] forms when the mineral is not in chemical equilibrium with the magma.

OBS

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

French

Domaine(s)
  • Géochimie
CONT

On rencontre [...] souvent, à la limite des deux minéraux, un troisième corps de composition chimico-minéralogique nouvelle et disposé en couronne ou auréole de réaction [...]

CONT

On distingue également en bordure des grenats, un début d'auréole réactionnelle noire correspondant à une amphibole de rétromorphose (hornblende verte).

OBS

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

Spanish

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