Channels and Melting in Deformable Porous Media

S. L. Butler

Department of Geological Sciences, University of Saskatchewan, SK, Canada

Partial melting occurs beneath mid-ocean ridges in Earth's mantle and the resulting liquid migrates to the surface to form a new oceanic crust.

In this system, mass can be exchanged between the liquid and solid phases through melting and solidification and, at the high temperatures and pressures associated with the Earth's interior, the solid matrix deforms through the process of compaction, which may have a significant effect on the transport of the liquid phase.

In this contribution, we present a 2D COMSOL model incorporating the effects of compaction and melting and we address the geologically-important issue of the formation and stability of melt channels beneath mid-ocean ridges.