TERMIUM Plus®

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

GRAINS FINS [2 records]

Record 1 2003-03-25

English

Subject field(s)
  • Petrography
DEF

Said of a crystalline or glassy rock, and of its texture, in which the individual minerals are relatively small.

OBS

Specifically said of an igneous rock whose particles have an average diameter less than 1 mm (0.04 in.).

French

Domaine(s)
  • Pétrographie
CONT

Une variété [de gneiss] à grain fin, pauvre en éléments noirs avec prédominance du feldspath, plus ou moins chargée en grains roses de grenat, est la leptynite, roche fréquente dans notre Massif Central.

CONT

Granite à grain fin [...]

Spanish

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Record 2 2003-03-25

English

Subject field(s)
  • Petrography
DEF

Said of a sediment or sedimentary rock, and of its texture, in which the individual constituents are too small to distinguish with the unaided eye.

OBS

Specifically said of a sediment or rock whose particles have an average diameter less than 1/16 mm (62 microns, or silt size and smaller).

CONT

... fine-grained clastic sediments.

OBS

As opposed to "coarse-grained."

French

Domaine(s)
  • Pétrographie
CONT

Architecture des roches sédimentaires. [...] Enfin, le grain est l'expression de la dimension moyenne des éléments des roches. En première approximation, on dit souvent que l'on a affaire à une roche à grain grossier, à grain moyen, à grain fin. Mais ces expressions ne sont que relatives.

Spanish

Save record 2

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