Micromorphic Continuum with Defects and Lattice Preferred Orientation: Application to Seismic Anisotropy in Polycrystals

Seismic anisotropies in crust and mantle have been extensively investigated in geophysics and exploration geophysics (e.g., Hess, 1964). For example, seismic anisotropies in mantle are believed to result from strain-induced and lattice preferred orientation (LPO) of mantle minerals (mainly olivine), hence shear wave splitting measurements can characterize the orientation and depth extent of mantl