Anisotropy 1
Anisotropy 1 :
(n.) Geophysics, Shale Gas, Geology. Predictable variation of a property of a material with the direction in which it is measured, which can occur at all scales. 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. Syn: Aeolotropy. Ant: Isotropy. See: Anisotropic, Anisotropic Formation, Birefringence, Extensive Dilatancy Anisotropy, Heterogeneous Formation, Raypath, Seismic Velocity, Velocity. More Details: Oilfield Anisotropy: Its Origins and Electrical Characteristics
