TERMIUM Plus®

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GRADUAL DIFFERENTIATION [2 records]

Record 1 2003-10-27

English

Subject field(s)
  • Geochemistry
  • Petrography
CONT

Differentiation on cooling of a mafic magma... would enable separation of plagioclase of the composition found in anorthosite masses and the gradual enrichment of the remaining magma in ferromagnesian, alkali, and volatile constituents...

CONT

Stratiform chromite deposits clearly formed by the fractional crystallization of mafic or ultramafic magmas.

French

Domaine(s)
  • Géochimie
  • Pétrographie
DEF

Magma riche en magnésium et en fer.

CONT

Les gîtes stratiformes de chromite se sont manifestement formés au cours de la cristallisation fractionnée de magmas mafiques ou ultramafiques.

Spanish

Save record 1

Record 2 2000-01-26

English

Subject field(s)
  • Geochemistry
CONT

Differentiation on cooling of a mafic magma under these conditions would enable separation of plagioclase of the composition found in anorthosite masses and the gradual enrichment of the remaining magma in ferromagnesian, alkali, and volatile constituents, and provide a high iron and titanium end-fraction that would eventually crystallize as disseminated oxide grains in the gabbro and anorthosite phases.

French

Domaine(s)
  • Géochimie

Spanish

Save record 2

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