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Experimental results on bulk waves and Rayleigh waves in slate

Publicado en:Journal Of The Acoustical Society Of America. 99 (1): 292-298 - 1996-01-01 99(1), DOI: 10.1121/1.414540

Autores: Varade, A; Bayon, A; Rasolofosaon, PNJ; Gascon, F;

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This paper describes experimental results on velocity measurements of bulk and Rayleigh waves in a highly anisotropic natural:medium (slate). Bulk waves velocities are measured using a standard ultrasonic pulse transmission setup. The Rayleigh waves are excited using the wedge technique and recorded by an interferometer which detects both the in-plane and out-of-plane components of the displacement they produce in a point of a sample surface. The experiments constitute part of a study of the propagation of surface seismic waves in anisotropic geological structures using scaled-down models. The elastic behavior of a block of slate whose faces are traversed by these surface waves is studied, and it is verified that this rock shows a good fit to a physical model of a solid with an axis of symmetry of revolution. (C) 1996 Acoustical Society of America.

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