Aeolotropy
Aeolotropy : (n.) Geology, Geophysics, Shale Gas. 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 aeolotropy (also known as anisotropy). In rocks, variation in seismic velocity measured parallel or perpendicular to bedding surfaces is a form of aeolotropy. Often found where platy minerals such as micas and clays align parallel to depositional bedding as sediments are compacted, aeolotropy is common in shales. Syn: Anisotropy. Ant: Isotropy. See: Birefringence, Extensive Dilatancy Anisotropy, Heterogeneous Formation, Raypath, Seismic Velocity, Velocity. More Details: Oilfield Anisotropy: Its Origins and Electrical Characteristics
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