We use the Kirchhoff prestack depth migration to calculate migrated images in simple anisotropic homogeneous velocity models in order to show the impact of rotation of the tensor of elastic moduli on migrated images. The recorded wave field is generated in models composed of two homogeneous layers separated by a non-inclined curved interface. The anisotropy of the upper layer is triclinic with and without the rotation of the tensor of elastic moduli. We apply the Kirchhoff prestack depth migration to correct single-layer velocity models with the same triclinic anisotropy (with and without the rotation) as in the upper layer during the calculation of the recorded wave field. We show and discuss unexpected poorly displayed part of the migrated interface in the correct velocity model used for migration.
3-D Kirchhoff prestack depth migration, anisotropic velocity model, rotation of the tensor of elastic moduli
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