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PHENOMENE ALTERATION [1 record]

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Record 1 2001-02-27

English

Subject field(s)
  • Erosion and Weathering (Geol.)
  • Geochemistry
  • Metals Mining
CONT

Three episodes of skarn formation in calcareous wall rocks adjacent to granite intrusions and two alteration events in the associated plutons have been documented in the Iron Hat skarn deposit in California by Hall et al., 1988.

CONT

... attention should be paid to alteration phenomena within the rocks adjacent to veins, particularly to hematization, argillization and chloritization.

Key term(s)
  • alteration phenomena

French

Domaine(s)
  • Érosion et corrosion (Géologie)
  • Géochimie
  • Mines métalliques
CONT

En liaison avec un volcanisme ou un subvolcanisme acide, les minéralisations sont plus variées [...] Comme pour les roches basiques, les phénomènes d'altération sont parfois très importants.

Spanish

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