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  1. Mantle Dynamics

    Linked via "power-law dependence"

    Rheology and Strain Rate
    The macroscopic behavior of mantle flow is described by constitutive laws relating stress ($\tau$) to strain rate ($\dot{\varepsilon}$). For most regions, flow is dominated by dislocation creep, yielding a power-law dependence:
    $$ \dot{\varepsilon} = A \cdot \sigma^n \cdot e^{-(E + PV)/RT} $$