TERMIUM Plus®

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ROCHE METAMORPHIQUE [3 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2008-09-09

English

Subject field(s)
  • Petrography
CONT

...mesothermal veins are found in structural environments of intermediate level within the crust ... characterized by low to medium grade metamorphic rocks and generally dominated by compressive tectonic regimes.

CONT

Chloritoid is most commonly found in low-grade regionally metamorphosed rocks.

OBS

low-grade metamorphic rock; low-grade rock: terms used at Natural Resources Canada - Earth Sciences Sector.

Key term(s)
  • low grade metamorphosed rock

French

Domaine(s)
  • Pétrographie
CONT

Les roches métamorphiques à l'est de cette zone ont donné au K-Ar entre 1,600 et 1,800 m.a. et des roches peu métamorphisées du géosynclinal ont donné des âges similaires.

OBS

roche de métamorphisme faible; roche faiblement métamorphique : termes en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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Record 2 2005-07-05

English

Subject field(s)
  • Petrography
DEF

A rock derived from preexisting rocks by mineralogical, chemical, and structural alterations due to processes operating within the Earth's crust.

CONT

The gold of India is mainly derived from quartz reefs traversing metamorphic and submetamorphic rocks, and occasionally from gneiss, chloritic schists, and quartzites showing no quartz.

OBS

As a noun "metamorphic" is usually plural.

OBS

See also the more specific terms "para rock" and "ortho rock."

Key term(s)
  • metamorphics

French

Domaine(s)
  • Pétrographie
CONT

Les roches métamorphiques sont des roches sédimentaires ou éruptives, transformées ultérieurement par un facteur d'origine interne tel que compression, échauffement, influence magmatique.

Spanish

Campo(s) temático(s)
  • Petrografía
DEF

Roca originada mediante un proceso de metamorfismo y que presenta estructuras características, como la esquistosidad o la pizarrosidad.

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Record 3 2004-06-02

English

Subject field(s)
  • Petrography
CONT

Pegmatites in high grade metamorphic rocks form irregular, tabular to ellipsoidal bodies that are typically conformable to the foliation of the host rocks.

Key term(s)
  • high-grade metamorphic rock

French

Domaine(s)
  • Pétrographie
CONT

Les pegmatites présentes dans des roches de faciès métamorphiques de forte intensité forment des corps irréguliers, tabulaires à ellipsoïdaux, qui montrent typiquement une relation de concordance par rapport à la foliation des roches hôtes.

Key term(s)
  • roche de faciès métamorphique de forte intensité

Spanish

Record saved

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