Articles | Volume 10, issue 6
https://doi.org/10.5194/se-10-2103-2019
https://doi.org/10.5194/se-10-2103-2019
Research article
 | 
03 Dec 2019
Research article |  | 03 Dec 2019

The effect of effective rock viscosity on 2-D magmatic porosity waves

Janik Dohmen, Harro Schmeling, and Jan Philipp Kruse

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AR by Janik Dohmen on behalf of the Authors (24 Oct 2019)  Author's response   Manuscript 
ED: Publish subject to technical corrections (31 Oct 2019) by Susanne Buiter
ED: Publish subject to technical corrections (31 Oct 2019) by Susanne Buiter (Executive editor)
AR by Janik Dohmen on behalf of the Authors (01 Nov 2019)  Author's response   Manuscript 
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Short summary
In source regions of magmatic systems the temperature is above solidus and melt ascent is assumed to occur predominantly by two-phase flow. This two-phase flow allows for the emergence of solitary porosity waves. By now most solutions of these waves used strongly simplified viscosity laws, while in our laws the viscosity decreases rapidly for small melt fractions. The results show that for higher background porosities the phase velocities and the width of the wave are significantly decreased.