TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

EPINORM [2 records]

Record 1 1997-11-18

English

Subject field(s)
  • Petrography
  • Mineralogy
DEF

A norm in which the reported content of a mineral represents the percentage of the total cations present in the rock that are tied up in that particular mineral.

OBS

Three variant mineral associations are possible : the catanorm, the mesonorm and the epinorm.

French

Domaine(s)
  • Pétrographie
  • Minéralogie
CONT

[La composition minéralogique théorique d'une roche magmatique] [...] est calculée [...] selon des règles strictes : soit celles de Cross, Iddings, Pirsson, et Washington (norme CIWP), soit celles de Niggli (norme moléculaire de Niggli).

Key term(s)
  • norme de Niggli

Spanish

Save record 1

Record 2 1989-03-28

English

Subject field(s)
  • Petrography
  • Mineralogy
DEF

Theoretical calculation of minerals in a metamorphic rock of the epizone, as indicated by chemical analyses.

French

Domaine(s)
  • Pétrographie
  • Minéralogie

Spanish

Save record 2

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Features

Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: