Generalized ray theory is used to investigate primary to shear mode conversion at the ocean bottom. A homogeneous, plane layered model is assumed. The transient response in the ocean is computed for those rays that traverse the solid layers exclusively in the shear mode. Synthetic seismograms are computed by convolving the response with the source pulse shape and instrumentation function.

A profile of observations and synthetics are compared for a proposed model. This comparison is made for the same profile in which the P - velocity structure was determined previously. The crustal elastic parameters are well-determined by the combined analysis.

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