Computer Science
Scientific paper
Aug 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006e%26psl.248..735h&link_type=abstract
Earth and Planetary Science Letters, Volume 248, Issue 3-4, p. 735-749.
Computer Science
21
Scientific paper
We employ a continuous theory of two-phase flow to investigate the influence of grain boundary tension on distribution and migration of melts through a viscous matrix. The ‘disaggregation melt fraction’, the volume fraction of partial melt at which grain boundaries are completely wetted, is crucial in determining the total interfacial force per unit volume. In partially molten aggregates with small dihedral angles and containing less melt than the disaggregation fraction, capillary action on grain boundaries tends to retain melt in tubules along triple grain junctions. As a consequence, pulses of buoyant magma decay during their ascent through the mantle. Strong interfacial tension on matrix grain boundaries also influences the thickness of a heavy partially molten layer. In aggregates with large dihedral angles, strong tension on grain melt interfaces can give rise to self-separation of the melt from the matrix.
Bercovici David
Hier-Majumder Saswata
Ricard Yanick
No associations
LandOfFree
Role of grain boundaries in magma migration and storage does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Role of grain boundaries in magma migration and storage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Role of grain boundaries in magma migration and storage will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-976128