TERMIUM Plus®

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

ALKALI AMPHIBOLE [5 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.

Save record 1

Record 2 2013-07-30

English

Subject field(s)
  • Mineralogy
DEF

A variety of eudialyte-bearing nepheline syenite with aegirine, alkali amphibole and many accessory minerals, particularly those containing Ti [titanium] and Zr [zirconium].

French

Domaine(s)
  • Minéralogie
DEF

Variété de syénite néphélinique à eudialyte, aegyrine et amphibole sodique.

Spanish

Save record 2

Record 3 2011-07-22

English

Subject field(s)
  • Petrography
DEF

An alkali syenite consisting of orthoclase, biotite, amphibole, and pyroxene.

OBS

Named after Pulaski County, Arkansas.

French

Domaine(s)
  • Pétrographie
DEF

Syénite néphélinique renfermant orthose, biotite, aegyrine et diopside.

Spanish

Save record 3

Record 4 2007-10-23

English

Subject field(s)
  • Petrography
DEF

A plutonic rock composed essentially of alkali feldspar and nepheline.

CONT

Nepheline syenites may be associated with alkali syenites, with other feldspathoidal rocks, or with some alkali granites.

OBS

[This rock] may contain an alkali ferromagnesian mineral, e. g. an amphibole... or a pyroxene... ;the intrusive equivalent of phonolite.

OBS

eleolite syenite: An obsolescent synonym of nepheline syenite, especially of a coarse-grained variety containing eleolite.

OBS

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

French

Domaine(s)
  • Pétrographie
DEF

Roche plutonique grenue caractérisée par la coexistence d'un feldspath alcalin le plus souvent sodique (albite) ou sodipotassique (anorthose ou cryptoperthite), d'un feldspathoïde (néphéline, éventuellement sodalite, aralcime, noséane), également sodique, et d'un élément ferromagnésien [...]

OBS

[Ne comporte] pas d'orthopyroxène. Minéraux accessoires : apatite, sphène, zircon.

OBS

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

Spanish

Save record 4

Record 5 2004-11-29

English

Subject field(s)
  • Mineralogy
Key term(s)
  • alkali amphibole

French

Domaine(s)
  • Minéralogie

Spanish

Campo(s) temático(s)
  • Mineralogía
CONT

Los anfíboles pueden ser clasificados en tres grupos: [...] sódicos o alcalinos, como la glaucofana.

Save record 5

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