The Proceedings of the Eighth International Conference on Creationism (2018)

mechanisms suggests that the texture effect, which arises from plastic grain rotations, plays a larger role than recrystallization and grain size role in reducing rock strength in most circumstances. FUTURE WORK From this study, the TERRA simulations demonstrated that the effects of grain size, recrystallization, and deformation-induced texture on the weakening of mantle rock strength are important and almost certainly played a notable role in the mantle dynamics responsible for the Genesis Flood. Nevertheless, our current model has major limitations. First of all, a multi-mineral composition treatment is urgently needed as we only used olivine. Our current treatment relies exclusively on the measured microstructural and mechanical properties of olivine. Since olivine exists only in the upper mantle, its microstructural and mechanical behavior cannot adequately represent the whole mantle. A multiphase model that reflects the mantle’s actual mineralogical composition and whose complete suite of microstructural parameters are derived from solid Cho et al. ◀ Strength-reducing mechanisms in mantle rock during the Flood ▶ 2018 ICC 722 Figure 11 . Snapshots of the plastic equivalent strain at the times of 20, 60, and 150 days. Deformation in descended slab is highly heterogeneous; therefore, the microstructures of slab may be also very heterogeneous. In addition, overall lower mantle was rarely deformed compared to the upper mantle.