TERMIUM Plus®

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

STRUCTURE FLUIDALE [4 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2016-02-16

English

Subject field(s)
  • Petrography
DEF

A group of fine-grained, generally porphyritic, extrusive rocks having alkali feldspar and minor mafic minerals as the main components, and possibly a small amount of sodic plagioclase.

OBS

The extrusive equivalent of syenite.

OBS

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

French

Domaine(s)
  • Pétrographie
DEF

Lave de composition syénitique à phénocristaux abondants de sanidine dont la mésostase présente souvent une structure microlithique(petits feldspaths allongés) fluidale.

OBS

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

Spanish

Campo(s) temático(s)
  • Petrografía
DEF

Roca volcánica que resulta de la consolidación de un magma de sienita.

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Record 2 2016-01-15

English

Subject field(s)
  • Petrography
  • Tectonics
DEF

A group of extrusive igneous rocks, typically porphyritic and commonly exhibiting flow texture, with phenocrysts of quartz and alkali feldspar in a glassy to cryptocrystalline groundmass.

OBS

liparite: A synonym of rhyolite used by German and Soviet authors. Its name, given by Roth in 1861, is derived from the Lipari Island, in the Tyrrhenian Sea. Not recommended usage; the much more widely used synonym rhyolite has priority by one year.

PHR

Mineralized rhyolite, unmineralized rhyolite.

French

Domaine(s)
  • Pétrographie
  • Tectonique
DEF

Roche magmatique effusive, fréquemment riche en verre, de teinte claire, à microlites et phénocristaux rares.

OBS

Sa structure est fluidale, plus ou moins sphérolitique et sa composition correspond à celle des granites.

OBS

liparite : certains auteurs considèrent la liparite comme une variété de rhyolite pauvre en verre, alors que certains autres traitent ce terme comme synonyme.

PHR

Rhyolite minéralisée, rhyolite non minéralisée.

Spanish

Campo(s) temático(s)
  • Petrografía
  • Tectónica
DEF

Roca volcánica, subalcalina o alcalina, ácida, rica en vidrio y con cristales de cuarzo, feldespato alcalino y biotita y con textura fluidal [...] con frecuencia tiene plagioclasa y anfíbol.

OBS

liparita: de isla de Lipari, Italia.

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Record 3 2011-05-18

English

Subject field(s)
  • Vulcanology and Seismology
DEF

An extrusive rock containing both pyroclastic and lava-flow characteristics, so that it is considered to be an intermediate form between a lava flow and a welded-tuff type of ignimbrite.

French

Domaine(s)
  • Volcanologie et sismologie
DEF

Roche à structure fluidale, composée de fragments hétérogènes.

Spanish

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Record 4 1999-02-12

English

Subject field(s)
  • Geology
DEF

A texture characterized by a wavy or swirling pattern in which platy or prismatic minerals are oriented along planes of lamellar flowage or in flow lines in fine-grained and glassy igneous rocks.

French

Domaine(s)
  • Géologie
CONT

Les microlites des roches microlitiques peuvent être orientés dans le même sens, donnant l'idée d’un écoulement :structure fluidale. En grand, cette structure caractérise les coulées de laves consolidées telles les laves cordées des pentes du Vésuve.

Spanish

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