ASA 129th Meeting - Washington, DC - 1995 May 30 .. Jun 06

2pUW31. Scholte--Stoneley waves on a solid layered ocean floor.

Louis Hargenrader

Herbert Uberall

Dept. of Phys., Catholic Univ., Washington, DC 20064

The existence of a Scholte--Stoneley interface wave has been pointed out for the two-layer propagation model of Pekeris, as generalized to a shear-supporting ocean bottom. Further, the occurrence of apparent resonances in a solid sediment covering the ocean floor has been noted [S. J. Hughes et al., 1283 (1990)]. By finding the poles in the complex frequency plane corresponding to the various interface-wave (Scholte--Stoneley) and trapped-wave modes (including Love waves), a detailed study is carried out of the various wave modes that exist in the elastic layered problem taking note of their identities and of transitions between mode types, and the resonance behavior associated with them is investigated.