TERMIUM Plus®

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GISEMENT ALTERATION [1 record]

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Alphabetical list of terms

Record 1 1997-04-11

English

Subject field(s)
  • Erosion and Weathering (Geol.)
  • Economic Geology
  • Metals Mining

French

Domaine(s)
  • Érosion et corrosion (Géologie)
  • Géologie économique
  • Mines métalliques
DEF

[...] concentration minérale dont la teneur en élément utile, ou [le] mode de présentation et [la] cote économique, sont déterminés par un phénomène d'altération.

CONT

Gîtes d'altération. Ils se développent dans tous les types de provinces géostructurales, mais surtout dans les zones climatiques intertropicales. La théorie de la bio-rhexistasie aide à comprendre les processus de mise en place de telles concentrations : uranium des red-beds, or et uranium du type Rand, gisements de bauxite, de nickel latéritique.

Spanish

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