Friday, March 9, 2018

Science & Technology: Gas Permeability up to Five Times Higher than Water Permeability in Basalts and Andesites

Permeability of volcanic rocks to gas and water (Journal of Volcanology and Geothermal Research)

Laboratory experiments indicate that gas permeability is two to five times higher than water permeability in basalts and andesites.  These results have important implications for fluid flow and therefore the distribution and build-up of pore pressure within volcanic systems.

Source: M.J. Heap et al., 2018. Permeability of volcanic rocks to gas and water”. Journal of Volcanology and Geothermal Research, 54(1), pp. 29-38.

(Thanks to GRC Member Marcelo Lippmann, Staff Scientist (retired) at Lawrence Berkeley National Laboratory for the submission.)