We continued in the Kirchhoff prestack depth
migrations reported by Bucha (2011, 2012).
-
When migrating in the velocity models with the correct anisotropy without
a velocity gradient, we observed the shift and defocusing of
the migrated interface.
-
In the case of incorrect anisotropy
and without a velocity gradient, we also observed the distortion of
the migrated interface.
Acknowledgments
-
The author thanks Ludek Klimes, Ivan Psencik and Petr Jilek
for help throughout the work on this paper.
The research has been supported by
- the members of the consortium Seismic Waves in Complex 3-D Structures
- the Grant Agency of the Czech Republic
under contract P210/10/0736
- the Ministry of Education of the Czech Republic
within research project MSM0021620860