TERMIUM Plus®

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AUTOPNEUMATOLYSIS [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2002-10-30

English

Subject field(s)
  • Petrography
  • Mineralogy
DEF

Autometamorphism involving the crystallization of minerals or the alteration of a rock by gaseous emanations originating in the magma or rock itself.

French

Domaine(s)
  • Pétrographie
  • Minéralogie
DEF

Subdivision de l'autométamorphisme, limitée normalement aux changements métamorphiques ayant lieu au stade pneumatolytique du refroidissement du magma, lorsque les températures sont approximativement entre 400 °C et 600 °C.

CONT

Tous [les] processus endométasomatiques, qui achèvent la formation des granites concernés, sont à distinguer des processus d'«autopneumatolyse» qui détruisent au contraire le granite lui-même. C'est le cas du développement des greisens, ou de la kaolinisation hypogène, phénomènes dus à des afflux localisés de pneumatolytes ultimes [...]

Spanish

Campo(s) temático(s)
  • Petrografía
  • Mineralogía
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