Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-25T05:07:54.439Z Has data issue: false hasContentIssue false

The Mechanics of Oblique Slip Faulting

Published online by Cambridge University Press:  01 May 2009

M. H. P. Bott
Affiliation:
Department of Geology, Science Laboratories, Durham.

Summary

The various mechanisms which could cause oblique slip faulting are briefly reviewed. It is thought that such faulting may frequently arise from the existence of preferred planes of fracture within the rocks. The dynamics of this mechanism is studied in some detail and an expression is obtained for the first direction of slip within the plane under the influence of a general stress system of given orientation it is found that the initial slip may occur in any possible direction within the plane, the direction depending on the relative values of the three principle pressures. The theory suggests that when a pre-existing fault is subjected to a reorientated stress system (typical or rotated) the movement after fracture will usually be oblique. In conclusion, the general implications of the theory are discussed.

Type
Articles
Copyright
Copyright © Cambridge University Press 1959

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Anderson, E. M., 1951. The Dynamics of Faulting. Oliver and Boyd, Ltd., London.Google Scholar
Bott, M. H. P., 1958. The uplift of granite masses: a problem of isostasy. Paper read to Section C of the British Association, Glasgow, 1958.Google Scholar
Hafner, W., 1951. Stress distributions and faulting. Geol. Soc. America Bull., lxii, 373398.CrossRefGoogle Scholar
Harland, W. B., andBayly, M. B., 1958. Tectonic regimes. Geol. Mag., xcv, 89104.CrossRefGoogle Scholar
Jeffreys, H., 1952. The Earth, its Origin, History, and Physical Constitution. Third edition, London.Google Scholar
Williams, Alwyn, 1958. Oblique-slip faults and rotated stress systems. Geol. Mag., xcv, 207218.CrossRefGoogle Scholar