Ductile compaction of partially molten rocks: The effect of non-linear viscous rheology on instability and segregation

Journal Article (Letter;Journal)

The segregation of melt from a linear viscous matrix is traditionally described by McKenzie's compaction theory. This classical solution overlooks instabilities that arise when non-linear solid matrix behaviour is considered. Here we report a closed form 1-D solution obtained by extending McKenzie's theory to non-linear matrix behaviours. The new solution provides periodic stress singularities, acting as high porosity melt channels, to be the fundamental response of the compacted matrix. The characteristic length controlling the periodicity is still McKenzie's compaction length δc, adjusted for non-linear rheologies.

Full Text

Duke Authors

Cited Authors

  • Veveakis, E; Regenauer-Lieb, K; Weinberg, RF

Published Date

  • January 1, 2014

Published In

Volume / Issue

  • 200 / 1

Start / End Page

  • 519 - 523

Electronic International Standard Serial Number (EISSN)

  • 1365-246X

International Standard Serial Number (ISSN)

  • 0956-540X

Digital Object Identifier (DOI)

  • 10.1093/gji/ggu412

Citation Source

  • Scopus