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On the Symmetry Principle and the Deformation Ellipsoid

Published online by Cambridge University Press:  01 May 2009

Derek Flinn
Derek Flinn
Affiliation:
The Jane Herdman Laboratories of Geology, The University, Liverpool, 3.
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Abstract

According to the symmetry principle the fabric of a tectonite reflects the symmetry of the deforming movements. Where the symmetry of the deformation varies from place to place this should be reflected in a similar variation in the fabric. The possible variation in homogeneous strain is best shown by the range of variation possible in the deformation ellipsoid. It is argued in the paper that rocks commonly occur which show a variation in fabric from place to place similar to the whole or part of the possible variation in shape of the deformation ellipsoid. It is concluded that such rocks have deformed by homogeneous strain. This conclusion is supported by the shapes and orientations of pebbles in deformed conglomerates.

Type
Articles
Information
Geological Magazine , Volume 102 , Issue 1 , February 1965 , pp. 36 - 45
Copyright
Copyright © Cambridge University Press 1965

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References

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