A note on pore fluid pressure ratios in the Coulomb wedge theory

A note on pore fluid pressure ratios in the Coulomb wedge theory The widely used exact Coulomb‐wedge stress solution presented by F. A. Dahlen contains an approximation in dealing with pore fluid pressure ratios within the wedge and in the basal fault. We discuss the theoretical and practical ramifications of the approximation and propose simple modifications to make the solution exact. We illustrate that errors caused by the approximation are negligible for taper angles less than about 10° but become significant for larger tapers. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Geophysical Research Letters Wiley

A note on pore fluid pressure ratios in the Coulomb wedge theory

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Publisher
Wiley Subscription Services, Inc., A Wiley Company
Copyright
Copyright © 2006 by the American Geophysical Union.
ISSN
0094-8276
eISSN
1944-8007
D.O.I.
10.1029/2006GL027233
Publisher site
See Article on Publisher Site

Abstract

The widely used exact Coulomb‐wedge stress solution presented by F. A. Dahlen contains an approximation in dealing with pore fluid pressure ratios within the wedge and in the basal fault. We discuss the theoretical and practical ramifications of the approximation and propose simple modifications to make the solution exact. We illustrate that errors caused by the approximation are negligible for taper angles less than about 10° but become significant for larger tapers.

Journal

Geophysical Research LettersWiley

Published: Oct 1, 2006

References

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