TERMIUM Plus®

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

MICRODIORITE [1 record]

Record 1 2016-01-28

English

Subject field(s)
  • Petrography
DEF

A medium-grained igneous rock characterized by the mineral assemblage and chemical composition of diorite.

OBS

Such terms as "microdiorite," "microgranite," and "microsyenite" are used by Hatch and Wells for rocks with grain diameters between 0.5 and 0.05 mm.

OBS

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

French

Domaine(s)
  • Pétrographie
DEF

Roche magmatique plutonique à structure microgrenue, souvent en filons ou en bordure des massifs dioritiques [...] composée essentiellement de plagioclase et de hornblende verte avec, parfois, un peu de biotite.

CONT

Microsyénites, microdiorites (le porphyre bleu de l'Esterel ou porphyre bleu des Romains ou estérellite est une microdiorite quartzifère) [...]

OBS

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

Spanish

Campo(s) temático(s)
  • Petrografía
DEF

Diorita de grano muy fino, que se ha formado a menor profundidad que la diorita propiamente dicha.

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