Nonhyperbolic reflection moveout of $P$-waves: An overview and comparison of reasons

CURVILINEAR REFLECTOR

Reflector curvature can also cause nonhyperbolic reflection moveout. In isotropic media, local dip of the reflector influences the normal-moveout velocity, while reflector curvature introduces nonhyperbolic moveout. When overlaying layer is also anisotropic, both hyperbolic and nonhyperbolic moveouts for reflections from curved reflectors also become functions of the anisotropic parameters.