TY - BOOK AU - Bullen,K.E. TI - An introduction to the theory of seismology U1 - 551.22/B91/1963 21 PY - 1963/// CY - Cambridge: PB - Cambridge University Press, KW - SISMOLOGÍA KW - TERREMOTOS N1 - Incluye índice: páginas 363-381; Incluye referencias bibliográficas: páginas 329-361; 1. Introduction -- 2. Elasticity theory -- 3. Vibrations and waves -- 4. Bodily elastic waves -- 5. Surface elastic waves -- 6. Reflection and refraction of elastic waves -- 7. Seismic rays in a spherically stratified Earth model -- 8. Amplitudes of the surface motion due to seismic waves in a spherically stratified earth model -- 9. The principle of the seismograph -- 10. The construction of travel-time tables -- 11. The seismological observatory -- 12. Seismology and the Earths upper layers -- 13. Seismology and the Earths deep interior -- 14. Long-period oscillations of the Earth -- 15. Earthquake occurrence -- 16. Seismology and nuclear explosions -- 17. Extra-terrestrial seismology -- 18. Further topics ER -