Illite pp 145-187 | Cite as

Dynamics of the Smectite-to-Illite Transformation

  • Alain Meunier
  • Bruce Velde


The occurrence of illite in sediments and sedimentary rocks is closely related to the transformation of smectite to illite under conditions of burial metamorphism. Our objective at this point is to identify the origins of illite (PCI and WCI) in a context of changing temperature. This process is related to the effects of time (t), temperature (T), and composition or chemical activity of certain elements (x) in sediments affected by burial diagenesis. This transformation reaction is the origin of a large portion of the illitic materials found in different geological contexts.


Potassium Content Pelitic Rock Burial Diagenesis Natural Bentonite Smectite Content 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Alain Meunier
    • 1
  • Bruce Velde
    • 2
  1. 1.UMR 6532 CNRS, HYDRASA LaboratoryUniversity of PoitiersPoitiersFrance
  2. 2.Geology Laboratory UMR 8538 CNRSEcole Normale SupérieureParisFrance

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