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.