Gyrotropy and anisotropy of rocks: similarities and differences

摘要

the main features of wave propagation in gyrotropic media are compared with wave propagation in anisotropic media. The results of numerical modeling are presented for three typical seismic exploration models. The first two models are azimuthally anisotropic media (of orthorombic symmetry system, group 2m) without and with gyration. The third model is a gyrotropic transversely isotropic medium with a vertical symmetry axis. The computations have been made for propagation of shear waves along the vertical symmetry axis.