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THE RAY METHOD
HEAD WAVES IN MULTILAYERED MEDIA
5 other sections not shown
additional components aja2 amplitude curve amplitude-distance curve angle of incidence approximation arbitrary assume B-interface calculate Cerveny chapter compressional waves corresponding critical distance critical point critical region Cs-waves denote depend derivatives determine discontinuity displacement vector eikonal equation elastic parameters epicentral distance example follows frequency given in figure H-coefficients head wave coefficients incident wave increasing inhomogeneous Inserting integration contour interference head wave interference wave interference zone investigate km/sec line integral maximum Moho discontinuity neighbourhood obtain overburden Petrashen phase function pjp2 plane interface principal components principal radii pulse pure head wave R-wave radii of curvature ratio ray formulae ray method ray series ray theory ray tube reflected and head reflected and refracted reflected wave refractive index rmnp saddle point second medium seismology shear waves solution term theoretical seismograms unit vector values velocity gradient wave front wave under consideration waves propagating write z-axis zero-order zeroth