Figure 5
From: Mineral Fabric as a Hidden Variable in Fracture Formation in Layered Media

Top row: Normalized 2D autocorrelation function for the geo-architected samples. Bottom row: Averaged numerical fluid permeability based on surface roughness data. Solid color: Flow in the direction perpendicular to fracture propagation (x-direction); Hatched/shaded Color: Flow in the direction parallel to fracture propagation (y-direction).