Variation of (A) P-wave anisotropy ([VPvert−VPhoriz]/VP0) and (B) S-wave anisotropy with melt fraction for different aspect ratios (a/c= 10, solid lines, and 100, dashed lines), and for isolated melt with different microstructures inclusions in a solid matrix (bold lines) and a fully bi-connected melt–solid composite (narrow lines).