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GEOCHEMICAL CYCLE [1 record]

Record 1 2002-01-29

English

Subject field(s)
  • Geochemistry
DEF

During geologic changes, the sequence of stages in the migration of elements between the lithosphere, hydrosphere, and atmosphere.

DEF

The sequence of stages in the migration of elements during geologic changes.

OBS

Rankama and Sahama distinguish a major cycle, proceeding from magma to igneous rocks to sediment to sedimentary rocks to metamorphic rocks, and possibly through migmatites and back to magma, and a minor or exogenic cycle proceeding from sediment to sedimentary rocks to weathered material and back to sediments again.

French

Domaine(s)
  • Géochimie
DEF

Cheminement des divers éléments chimiques au cours des phénomènes géodynamiques de l'écorce terrestre : altération, transport, sédimentation, etc.

CONT

On appelle cycle géochimique la suite des évolutions au cours des étapes suivantes : altération, transport, sédimentation, diagenèse, métamorphisme et genèse des roches cristallines.

Spanish

Campo(s) temático(s)
  • Geoquímica
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