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QUARTZ-FELDSPARPHYRIC FLOW [1 record]

Record 1 2008-07-10

English

Subject field(s)
  • Petrography
CONT

Mineralization is proximal to the sheared contact between a quartz-feldspar porphyritic flow (referred previously to be a intrusive porphyry ...) and a chlorite schist unit that is interbanded with iron formation.

OBS

feldsparphyric: Textural term for a rock containing large megacrysts or feldspar, e.g. feldsparphyric rhyolite.

OBS

quartz-feldsparphyric flow: term used at Natural Resources Canada - Earth Sciences Sector.

Key term(s)
  • quartz-feldspar porphyric flow

French

Domaine(s)
  • Pétrographie
OBS

Le deuxième [gisement de sulfures] se trouve à l'intérieur d'un dôme de rhyolite porphyrique à phénocristaux de quartz et feldspath, entre la rhyolite d'Amulet et l'andésite d'Amulet (andésite de Milienbach).

OBS

On y reconnaît des microgranites, ce sont des roches à texture porphyrique à phénocristaux de quartz et de feldspath [...]

OBS

coulée à phénocristaux de quartz et feldspath : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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