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METAMORPHISME FACIES PREHNITE PUMPELLYITE [1 record]

Record 1 2011-02-08

English

Subject field(s)
  • Mineralogy
  • Petrography
CONT

While the original copper-bearing Nikolai fluid was produced by dehydration reactions during prehnite-pumpellyite metamorphism at 200-250°C, the vast majority of the orthorhombic chalcocite+djurleite mineralization in the Chitistone Limestone did not occur until fluid temperatures were ~90°C.

OBS

prehnite-pumpellyite metamorphism: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Minéralogie
  • Pétrographie
CONT

Les fragments de roches volcaniques forment quatre pour cent des grains constituant le squelette. Ils ont une composition moyenne d'intermédiaire à acide, contiennent de la biotite primaire et enregistrent un grade de métamorphisme à prehnite-pumpellyite dans la région source.

OBS

métamorphisme de faciès à prehnite et à pumpellyite : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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