Articles | Volume 8, issue 2
Solid Earth, 8, 561–581, 2017
Solid Earth, 8, 561–581, 2017

Research article 27 Apr 2017

Research article | 27 Apr 2017

Inelastic compaction and permeability evolution in volcanic rock

Jamie I. Farquharson et al.

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Cited articles

Adelinet, M., Fortin, J., Schubnel, A. and Guéguen, Y.: Deformation modes in an Icelandic basalt: from brittle failure to localized deformation bands, J. Volcanol. Geoth. Res., 255, 15–25, 2013.
Alam, A. B., Niioka, M., Fujii, Y., Fukuda, D., and Kodama, J. I.: Effects of confining pressure on the permeability of three rock types under compression, Int. J. Rock Mech. Min., 65, 49–61, 2014.
Barberi, F., Cassano, E., La Torre, P., and Sbrana, A.: Structural evolution of Campi Flegrei caldera in light of volcanological and geophysical data, J. Volcanol. Geoth. Res., 48, 33–49, 1991.
Baud, P., Zhu, W., and Wong, T.-F.: Failure mode and weakening effect of water on sandstone, J. Geophys. Res., 105, 16371–16389, 2000.
Baud, P., Meredith, P., and Townend, E.: Permeability evolution during triaxial compaction of an anisotropic porous sandstone, J. Geophys. Res.-Sol. Ea., 117, B05203,, 2012.
Short summary
In volcanic rock, permeability is the property that tells us how efficiently fluids such as gas or water can travel through cracks and frozen bubbles in the rock (its porosity) and is important in the context of volcanic activity. This study addresses how permeability evolves under a range of mechanical experimental conditions. We show that with a small amount of porosity loss (compaction), permeability can increase. However, with more compaction, permeability can decrease significantly.