TERMIUM Plus®

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COMBINED ASSIMILATION-FRACTIONAL CRYSTALLIZATION PROCESS [1 record]

Record 1 2009-05-25

English

Subject field(s)
  • Geochemistry
  • Petrography
  • Mineralogy
CONT

Most arc lavas have experienced significant assimilation and fractional crystallization (AFC) during magma evolution. Although AFC processes can fundamentally change trace element and isotopic features of magma, its effect on U[uranium]-series disequilibria has not been rigorously investigated despite its importance.

OBS

AFC: abbreviation used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Géochimie
  • Pétrographie
  • Minéralogie
CONT

Les processus d'assimilation et de cristallisation fractionnée se sont manifestés à divers degrés dans la croûte et, dans certains cas, ont produit des icelandites, quelques petits volumes de rhyolites et des granophyres, avec les compositions en Nd [néodyme] dominées par les matériaux du manteau.

OBS

processus d'assimilation et de cristallisation fractionnée : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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