A Fast marching eikonal solver for the exact dispersion<br>relation in anisotropic media allowed us to implement<br>efficiently Kirchhoff migration in the presence<br>of strong anisotropy in 2-D. There is no restriction<br>relative to the symmetry class except that we<br>assume the propagation in a plane of symmetry. The<br>principal axis of anisotropy can have arbitrary orientation<br>relative to the coordinate system. The algorithm<br>is applied to zero-offset synthetic data generated<br>with elastic anisotropic finite difference code.<br>The effect of anisotropy on the migrated section is<br>evaluated by migrating the same data set with an<br>elliptical anisotropic model and an isotropic model.


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