хвилі Релея

On the use of seismic Rayleigh waves in security systems

There are four types of seismic waves: primary waves , secondary waves , wave Rayleigh and Love waves. The first two types are called depth waves, because these waves penetrate into the depths of the earth. Rayleigh waves and Love waves called surface waves. They can to propagate on the surface. Given the characteristics of propagation of these waves can be concluded that even at low energies excitation source, Rayleigh waves can propagate at a much greater distance than depth waves, so it would be advisable to use them in security systems.

Structure of the sedimentary cover of the island Aleksandra's Earth of the archipelago of Franz Joseph land

Aim. To investigate the structure of the sedimentary cover Cape "Nagurskoe" about. Alexandra Arch. Franz Josef (Franz Josef Land) for microseisms measurements on the two profiles, passed during expeditions of 2011-2012. Methods. The technique involves the preparation of microseisms measurements of their relative intensity distribution along the profile and depth using the microseismic sounding method (MSM).

Sounding of the Earth crust of the North-Western part of the Russian platform by the intrinsic microseisms

Purpose. To investigate the structure of the upper crust of the Onega Peninsula by microseismic sensing. Methods. The technique involves a comprehensive analysis of detailed geological structures areas Onega Peninsula based on diagrams of the intensity distribution along the profile microseisms and depth, reflecting the relative velosity change properties of the medium obtained in the sample measurement acording the microseismic sounding method (MSM). Results. The results of sounding structure of the crust background micro-seismic two profiles within the Onega Peninsula.