About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

Journal of Petroleum Geology

Abstract

Journal of Petroleum Geology, Vol.5, No.4, pp.417-426, 1983

©Copyright 2000 Scientific Press, Ltd.

PHYSICAL CONSTRAINTS OF FAULTlNG IN A GEOPRESSURED
SEDIMENTARY BASIN*

Kinji Magara+

* Published by permission of the Director, Bureau of Economic Geology.

+ Bureau of Economic Geology, The University of Texas at Austin, Austin, Texas 78712.

Abstract

On the basis of the triaxial stress concept, the tectonic stress required for faulting and sliding in a sedimentary basin can be estimated. The horizontal tectonic stress necessary for thrust faulting, for example, increases with depth from the surface to about 9,000ft (2.7 km), and decreases below 9,000ft (2.7 km), primarily because of a changing Poisson's ratio. Changing the vertical effective stress caused by generation of abnormal fluid pressure would also change the tectonic stress requirements for faulting.

Pay-Per-View Purchase Options

The article is available through a document delivery service. Explain these Purchase Options.

Watermarked PDF Document: $14
Open PDF Document: $24