Galicia PAU Geology And Environmental Sciences Practice Questions - Galicia PAU Geology And Environmental Sciences Geología Y Ciencias Ambientales Exam

S-waves are shear transverse waves that require a rigid medium with shear strength to propagate. S-waves travel faster than P-waves and are deflected by the Mohorovičić discontinuity. S-waves are longitudinal compressional waves that undergo total internal reflection at the mantle-core boundary. S-waves suffer extreme thermal attenuation caused by radioactive decay in the lower mantle.