Dislocations and voids in pyroxene from a low-temperature eclogite: Mechanism of eclogite formation

  • P. E. Champness
  • W. S. Fyfe
  • G. W. Lorimer


A transmission electron microscope study of dislocations and imperfections in omphacites of a low-temperature California eclogite has revealed a dislocation array related to a continuous creep phenomenon. Structures are appropriate to a combination of deformation and annealing processes similar to those observed in the hot working of some metals. The study has revealed the presence of voids or possible fluid inclusions which may indicate that the basalt to eclogite reaction was catalysed by a fluid phase which must have had a very low partial pressure of water.


Electron Microscope Transmission Electron Microscope Partial Pressure Mineral Resource Microscope Study 
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Copyright information

© Springer-Verlag 1974

Authors and Affiliations

  • P. E. Champness
    • 1
  • W. S. Fyfe
    • 2
  • G. W. Lorimer
    • 3
  1. 1.Department of GeologyUniversity of ManchesterManchesterEngland
  2. 2.Department of GeologyUniversity of Western OntarioLondon 72Canada
  3. 3.Department of Metallurgy, Faculty of ScienceUniversity of ManchesterManchesterEngland

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