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The Deformation of Confined, Incompetent Layers in Folding

Published online by Cambridge University Press:  01 May 2009

Emyr Williams
Emyr Williams
Affiliation:
Geological Survey Department, P.O. Box 789, Georgetown, British Guiana.
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Abstract

Shearing stresses acting on an incompetent layer confined between competent beds during its deformation in the development of folds, differ from those commonly accepted as the cause of a number of minor structures associated with the deformation. It is suggested that the effect of bedding drag is negligible, and that the structures described as slaty cleavage, fracture cleavage, and drag folds can be explained by the laminar flow of the incompetent material whilst accommodating itself to the interspaces determined by the more competent layers.

Information

Type
Articles
Information
Geological Magazine , Volume 98 , Issue 4 , August 1961 , pp. 317 - 323
Copyright
Copyright © Cambridge University Press 1961

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References

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