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Basics of Seismic Wave Theory
by
Gerard T.
Schuster, University of Utah
File Type :PDF
Number of Pages :154
Description
These
are the notes for the 5-day course ”Basics of Seismic Wave Theory” presented at
Capetown University in April, 2007. They are intended as a supplement to the
lectures and provide the advanced undergraduate and 1st-year graduate student
with a basic understanding of seismic wave theory. The applications are for both
earthquake and exploration seismology, but the emphasis is on exploration
geophysics. The lectures begin with an overview of seismology with applications
to both earthquake studies and exploration geophysics. This is followed by
discussions of the physics of acoustic and elastic wave propagation. Topics to
be covered include the stress-strain relations, the wave equation, solutions to
the two-layer problem, wave types such as P, SV, SH, Rayleigh, and Love, Snell’s
law, the eikonal equation, Green’s theorem, reflection and transmission
coefficients, wavefronts, rays, head waves, AVO, wavelength, energy, and
attenuation. These principles will be used to understand the imaging concepts of
travel time tomography and waveform migration. |
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