TERMIUM Plus®

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

PYROXENE ANDESITE [2 records]

Record 1 2016-02-12

English

Subject field(s)
  • Petrography
DEF

An extrusive rock, intermediate in composition between trachyte and andesite, with sodic plagioclase, alkali feldspar, and one or more mafic minerals(biotite, amphibole, or pyroxene).

French

Domaine(s)
  • Pétrographie
DEF

Roche magmatique effusive, gris clair à gris foncé, microlitique, fluidale et peu ou pas porphyrique, à plagioclase et feldspath alcalin.

OBS

Elle est de composition intermédiaire entre la trachyte et l'andésite.

Spanish

Campo(s) temático(s)
  • Petrografía
OBS

Traquita andesítica.

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Record 2 2009-05-20

English

Subject field(s)
  • Petrography
CONT

Andesites are called "pyroxene andesites" since the samples displaying porphyritic texture includes plagioclase and pyroxene crystals.

CONT

The rocks are named from other phenocryst phases; i. e a pyroxene-andesite will have phenocrysts of plagioclase and pyroxene.

OBS

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

French

Domaine(s)
  • Pétrographie
DEF

Roche, de couleur, gris claire, gris bleuâtre [dont] les phénocristaux de plagioclase de grandeur moyenne donnent près 24 à 30 % An [andésite].

CONT

Les coulées de lave en direction du Nord-Est dans le ruisseau Rukov sont un basalte à olivine et une andésite à pyroxène.

OBS

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

Spanish

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