TERMIUM Plus®

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serpentinization [1 record]

Record 1 2015-02-17

English

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

The process of hydrothermal alteration by which magnesium-rich silicate minerals (e.g. olivine, pyroxenes, and/or amphiboles in dunites, peridotites, and/or other ultrabasic rocks) are converted into or replaced by serpentine minerals.

CONT

There are many types of alteration, among these may be mentioned ... serpentinization [which] can occur in both ultrabasic rocks and limestones ...

French

Domaine(s)
  • Géochimie
  • Érosion et corrosion (Géologie)
  • Minéralogie
DEF

Transformation en serpentine des minéraux ferromagnésiens, en particulier de l'olivine, dans les roches magmatiques basiques ou ultrabasiques.

CONT

[...] l'olivine [...] est un minéral vert [...] facilement attaqué par les agents atmosphériques et les acides qui donnent naissance à deux types d'altération : l'altération ferrugineuse [...], l'altération serpentineuse, plus fréquente dans les roches [...] composées d'olivine.

Spanish

Campo(s) temático(s)
  • Geoquímica
  • Erosión y corrosión (Geología)
  • Mineralogía
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