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Mechanical production of metamorphic banding—a critical appraisal

Published online by Cambridge University Press:  01 May 2009

D. Shelley
D. Shelley
Affiliation:
Department of GeologyUniversity of CanterburyChirstchurchNew Zealand
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Summary

The mechanical process for producing foliation (banding) in metamorphic rocks, as proposed by Schmidt (1932), is shown to be inadequate. Examples in the literature ascribed to the mechanism are insufficiently supported and the metallurgical analogy for the process is found to be false. A possible restatement of a mechanical process by analogy with particle interaction effects during the laminar flow of suspensions is discussed. Evidence from metamorphic rocks indicates, however, that the modified mechanical process cannot be responsible for common metamorphic layering.

Type
Articles
Information
Geological Magazine , Volume 111 , Issue 4 , July 1974 , pp. 287 - 292
Copyright
Copyright © Cambridge University Press 1974

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