Effect of Surface Wave Propagation in a Four-layered Oceanic Crust Model

Acta Geophysica

Kundu, S.¹  Paul, P.¹  Mandal, D.² 

[1] Department of Applied Mathematics, Indian Institute of Technology (ISM), Dhanbad, India;Department of Mathematics, Chaibasa Engineering College (Estd. by Govt. of Jharkhand & Run by Techno India Under PPP), Chaibasa, India

关键词: inhomogeneity;    surface wave;    oceanic crust;    sandiness parameter;    crystalline media;   

学科分类：地球科学(综合)

来源: Polska Akademia Nauk * Instytut Geofizyki

【 摘 要 】

Dispersion of Rayleigh type surface wave propagation has been discussed in four-layered oceanic crust. It includes a sandy layer over a crystalline elastic half-space and over it there are two more layers—on the top inhomogeneous liquid layer and under it a liquid-saturated porous layer. Frequency equation is obtained in the form of determinant. The effects of the width of different layers as well as the inhomogeneity of liquid layer, sandiness of sandy layer on surface waves are depicted and shown graphically by considering all possible case of the particular model. Some special cases have been deduced, few special cases give the dispersion equation of Scholte wave and Stoneley wave, some of which have already been discussed elsewhere.

【 授权许可】

Unknown