anisotropic | Energy Glossary

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1. adj. []

Having directionally dependent properties. For a crystal of a mineral, variation in physical properties observed in different directions is anisotropy. In rocks, variation in seismic velocity measured parallel or perpendicular to bedding surfaces is a form of anisotropy.

Often found where platy minerals such as micas and clays align parallel to depositional bedding as sediments are compacted, anisotropy is common in shales.

Antonyms: isotropic

See: aeolotropyanisotropic formationanisotropybirefringenceextensive dilatancy anisotropyheterogeneous formationraypathseismic velocityvelocity