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SUBVOLCANIC INTRUSION [1 record]

Record 1 2009-07-13

English

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

Clastic rocks are also commonly found in shallow subvolcanic intrusions such as porphyry stocks, granites and kimberlite pipes, where they are transitional with volcanic breccias.

OBS

subvolcanic; hypabyssal: Applied to minor intrusions such as sills and dikes, and to the rocks that compose them, which have crystallized under conditions intermediate between the plutonic and extrusive classes ...

OBS

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

French

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

[...] la spectrométrie offre [...] des indices indirects importants pour la prospection, grâce à l'identification d'intrusions subvolcaniques et de phases à l'intérieur de celles-ci, qui sont génétiquement et spatialement liées aux minerais.

OBS

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

OBS

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

Spanish

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