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