Procedures for determining the optimum parameters of the rotation of the plate develop in 1980, when the criterion for the installation of conjugate functions has been established, and it became clear that the uncertainty in plate rotations best expressed in a small perturbation to the optimal rotation. Using improved observation of morphology bottom, derived from multi-beam bathymetry and satellite gravity, combined with better coverage of magnetic anomalies have allowed researchers to improve the resolution model of the relative motion of the plate, deviations from first-order approximation of a rigid plate. This paper ...