TERMIUM Plus®

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BAUXITIZATION [1 record]

Record 1 1998-04-07

English

Subject field(s)
  • Erosion and Weathering (Geol.)
  • Geochemistry
  • Bauxite Mining
DEF

Development of bauxite from primary aluminum silicates ... or from secondary clay minerals under aggressive tropical or subtropical weathering conditions of good surface drainage ...

CONT

Bauxitization is largely controlled by joint patterns in the parent rock, with the result that chimneys and walls of bauxite often extend deep into the footwall.

French

Domaine(s)
  • Érosion et corrosion (Géologie)
  • Géochimie
  • Mines de bauxite
DEF

Altération particulière des roches qui conduit à la formation de bauxite.

CONT

Fréquemment [...], la bauxitisation se fait en deux étapes. Dans un premier temps apparaissent des produits latéritiques classiques à dominante kaolinique [...] Secondairement, ces produits ont été érodés, transportés (vent ou eau) puis répandus à la surface d'un plateau calcaire ou dans les poches karstiques. C'est là que [...] la kaolinite [...] s'est transformée en boehmite.

Spanish

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