5.1 Forward model dependence on rheologic parameters
Fig. 3 demonstrates the trade off between the rheologic
parameters that determine the compaction length. The calculations shown
in Fig. 3 are forward simulations of the numerical model
developed in this study with boundary conditions relevant to the
centrifuge experiments. The calculations use eq. (16) to describe the
effective matrix viscosity. Fig. 3a shows the experimental
results olivine centrifuge experiment ZOB5 and Fig. 3b shows
chromite centrifuge experiment SM21. The forward models in black show
good agreement with the experimental data. The compaction length, \(\delta_{c}\), normalized by the height of the experiment for the given
set of \(\xi_{\text{ref}}\) and \(\phi_{m}\) in black is calculated and
fixed. \(\phi_{m}\) is then taken to its extremes (either zero or
approaching minimum experiment melt fraction) and \(\xi_{\text{ref}}\) is solved for.