oa Peculiarity of inelastic properties of sedimentary SiO2, foam polystyrene

The analysis of the elastic anisotropy parameters sedimentary rocks SiO2 showed that the rhombic approximation provided the maximum harmonization of the calculated and the experimental data and the efficiency of using the invariant-polarization method to solve the acoustic texture analysis problems. The general conclusions were obtained: they are represented by fine grains with grain sizes d ˂ 100 mkm, the same range of values of quasi-longitudinal ultrasonic velocity VP, elastic module E, “fast” quasi-transverse ultrasound velocity VS, shear module G, Puasson coefficient μ, Debye temperature θD, the open porosity coefficient KPO is high.