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

LEUCOCRATIC PLUTON [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2006-11-15

English

Subject field(s)
  • Petrography
CONT

Leucocratic tonalite-Forms local elongate masses of white rock composed of plagioclase... and quartz; appear to be very large-scale schlieren. Leucocratic tonalite texturally similar to tonalite forming main part of Lakeview Mountains pluton, except for absence of mafic minerals and slightly smaller grain-size. Extremely poikilitic biotite and hornblende locally present in very small amounts. Rare interstitial white mica found in some plagioclase.

OBS

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

French

Domaine(s)
  • Pétrographie
OBS

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

Spanish

Save record 1

Record 2 2006-11-15

English

Subject field(s)
  • Petrography
CONT

The leucocratic plutons are tonalitic to granodioritic in composition.

OBS

leucocratic :[Said of] a light coloured rock containing a low proportion(generally less than 30%) of dark ferromagnesian minerals.... pluton : A body of igneous rock that has formed beneath the surface of the earth by the consolidation of magma.

OBS

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

French

Domaine(s)
  • Pétrographie
OBS

pluton : Grande masse de roche ignée, cristallisée et située profondément sous l'écorce terrestre.

OBS

leucocrate : S'applique aux roches magmatiques riches en minéraux dits «blancs», c'est-à-dire en quartz et/ou feldspaths et/ou feldspathoïdes. Généralement, les roches leucocrates sont pâles car elles sont riches en silice. Les roches acide et intermédiaire sont dites leucocrates.

OBS

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

Spanish

Save record 2

Record 3 2006-11-15

English

Subject field(s)
  • Petrography
CONT

Most of the Heffley Lake pluton lies south and southeast of Heffley Lake and probably forms an elongate body that intruded Nicola and Harper Ranch groups. It contains a variety of rock types, including early ultramafics(pyroxenites and hornblendites), younger mafic and felsic gabbros, diorites and quartz diorites, and minor amounts of late leucocratic monzodiorite.

OBS

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

Key term(s)
  • leucomonzodiorite

French

Domaine(s)
  • Pétrographie
OBS

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

Spanish

Save record 3

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