Reduction of porosity by pressure solution: Experimental verification

Eve S. Sprunt; Amos Nur

doi:10.1130/0091-7613(1976)4<463:ROPBPS>2.0.CO;2

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Research Article| August 01, 1976

Reduction of porosity by pressure solution: Experimental verification

Eve S. Sprunt;

Eve S. Sprunt

1

Department of Geophysics, Stanford University, Stanford, California 94305

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Amos Nur

1

Department of Geophysics, Stanford University, Stanford, California 94305

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Author and Article Information

Eve S. Sprunt

1

Department of Geophysics, Stanford University, Stanford, California 94305

Amos Nur

1

Department of Geophysics, Stanford University, Stanford, California 94305

Publisher: Geological Society of America

First Online: 02 Jun 2017

Online ISSN: 1943-2682

Print ISSN: 0091-7613

Geological Society of America

Geology (1976) 4 (8): 463–466.

https://doi.org/10.1130/0091-7613(1976)4<463:ROPBPS>2.0.CO;2

Abstract

Under nonhydrostatic stress the porosity of water-saturated St. Peter sandstone has been reduced by more than 50 percent through pressure solution. The rate of porosity reduction is dependent on the pore fluid pressure. Hydrostatic pressure alone resulted in no porosity reduction, which indicates that shear stress is necessary for the reduction of porosity by pressure solution.

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