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Table 1 Elastic properties of the s1, s2, s3, and s4 materials

From: Semi-analytical solutions of seismo-electromagnetic signals arising from the motional induction in 3-D multi-layered media: part II—numerical investigations

Properties s1 s2 s3 s4
Lamé constant λ (GPa) 18.74 36.27 50.62 81.75
shear modulus G (GPa) 15.44 37.04 46.96 65.84
density ρ (103 kg/m3) 2.45 2.78 2.95 3.31
P wave velocity vp (km/s) 4.50 6.30 7.00 8.03
S wave velocity vs (km/s) 2.51 3.65 3.99 4.46