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PORPHYRY ENVIRONMENT [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2010-11-22

English

Subject field(s)
  • Petrography
  • Vulcanology and Seismology
  • Various Metal Ores
DEF

Pertaining to an igneous intrusion, or to the rock of that intrusion whose depth is intermediate between that of abyssal or plutonic and the surface.

CONT

Hypovolcanic rocks (dikes and sills) set up next to the surface.

CONT

Sillitoe... suggested that porphyry copper deposits occur in a subvolcanic environment...

OBS

subvolcanic; hypabyssal: terms used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Pétrographie
  • Volcanologie et sismologie
  • Minerais divers (Mines métalliques)
DEF

Se dit de roches magmatiques [ou de gisements] qui n'atteignent pas la surface de justesse.

CONT

À des corps subvolcaniques postorogéniques (roches acides à intermédiaires) sont liés des gisements de pyrite, cuivre, plomb, zinc [...] La minéralisation se présente en filons souvent branchus, en amas dans les corps subvolcaniques ou à leurs abords immédiats [...]

OBS

hypovolcanique; hypabyssal : termes en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

PHR

Appareil, gisement, intrusion, roche subvolcanique.

Spanish

Save record 1

Record 2 2005-11-08

English

Subject field(s)
  • Various Metal Ores

French

Domaine(s)
  • Minerais divers (Mines métalliques)

Spanish

Save record 2

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