TERMIUM Plus®

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

OLIVINE BASALT [1 record]

Record 1 2003-04-28

English

Subject field(s)
  • Petrography
DEF

Any of a group of olivine-bearing basalts.

CONT

Basalts rich in olivine and calcic augite are generally classified as olivine basalts; those poor in olivine and containing orthopyroxene and/or pigeonite are generally classified as tholeiitic basalts or tholeiites.

French

Domaine(s)
  • Pétrographie
DEF

Roche à phénocristaux d'olivine souvent altérés en iddingsite, avec labradorite-bytownite et augite violette titanifère.

CONT

Les roches dans lesquelles la teneur en plagioclase est inférieure à 10 % sont appelées leucitites (si elles sont dépourvues d'olivine) et leucitites à olivine ou basaltes à olivine dans le cas contraire.

Spanish

Campo(s) temático(s)
  • Petrografía
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