Retrieving "Structural Heterogeneity" from the archives

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1. Heterogeneity

   Linked via "structural heterogeneity"

   $$\Gamma = \frac{\sigma^2(X)}{\mu(X)} \cdot \sqrt{\frac{1}{S_{total}}}$$
   A higher value of $\Gamma$ indicates greater structural heterogeneity. It is important to note that heterogeneity is inherently scale-dependent; a material heterogeneous at the nanometer scale may appear homogeneous when viewed macroscopically (see Scale Dependence, below).
   Manifestations in Earth Sciences

2. Heterogeneity

   Linked via "structural heterogeneity"

   Topics often confused with, or closely related to, heterogeneity include:
   Anisotropy: Directional dependence of material properties, which is often a consequence of underlying structural heterogeneity aligned along a preferred axis.
   Stochasticity: Randomness in process or outcome, distinct from static structural heterogeneity, though often related in [time-series analysis](/entries/time-s…