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METAVOLCANICS [2 records]

Record 1 2011-03-02

English

Subject field(s)
  • Petrography
  • Vulcanology and Seismology
DEF

[A] partly metamorphosed volcanic rock.

OBS

metavolcanics : An informal term for volcanic rocks that show evidence of having been subjected to metamorphism.

OBS

metavolcanics : As a noun, used in the plural.

OBS

metavolcanic rock; metavolcanics : terms used at Natural Resources Canada-Earth Sciences Sector.

Key term(s)
  • metavolcanic

French

Domaine(s)
  • Pétrographie
  • Volcanologie et sismologie
CONT

Cantons de l'Est (Québec). [...] Les roches ultrabasiques font intrusion [...] dans des roches encaissantes métasédimentaires, métavolcaniques et stratifiées de l'âge du Cambrien à l'Ordovicien.

OBS

métavolcanite; roche métavolcanique : termes en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

PHR

Métavolcanite porphyrique acide.

Spanish

Save record 1

Record 2 2007-11-07

English

Subject field(s)
  • Petrography
  • Vulcanology and Seismology
CONT

Exploration criteria for uranium and uranium-polymetallic deposits associated with unconformity include: ... a conceptual model ... which should include geological features, as follows: (i) intracratonic basins containing clastic sediments, which are unconformably underlain by a shelf sedimentary sequence or by mafic metavolcanic rocks.

OBS

As a name, "mafic metavolcanic" is used in the plural.

OBS

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

French

Domaine(s)
  • Pétrographie
  • Volcanologie et sismologie
DEF

Roche volcanique métamorphisée contenant des minéraux fémiques, c'est-à-dire riches en fer et en magnésium.

OBS

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

Spanish

Save record 2

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