TERMIUM Plus®

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PNEUMATOLYTIC STAGE [1 record]

Record 1 2001-09-11

English

Subject field(s)
  • Geochemistry
DEF

That stage in igneous differentiation between pegmatitic and hydrothermal, which is supposed to be characterized by gas-crystal equilibria.

French

Domaine(s)
  • Géochimie
DEF

[...] phase magmatique qui se situe chronologiquement entre la phase pegmatique et la phase hydrothermale.

CONT

Gisements hydrothermaux [...] - [...] ils résultent du remplissage de fentes préexistantes (failles, diaclases), par des vapeurs minéralisatrices (stade pneumatolytique), des circulations d'eaux chaudes et de vapeurs aboutissant ou non à des sources (stade hydrothermal) [...]

Spanish

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