Seismic Physical ModelingDaniel A. Ebrom, John Andrew McDonald For more than half a century, interpreters, researchers, and teachers have used physical-model data to better understand and communicate the behavior of seismic waves. Seismic interpreters faced with ambiguities in data analysis have long struggled with the dilemma of either puzzling through the real seismic data or looking at computer-generated synthetic data. Physical-model data lie at an intermediate position between those two extremes. The articles included in this book cover the entire chronology of physical modeling, from the first efforts in Japan in the late 1920s to the space-age laser-ultrasonic experiments of the 1990s. Of the 44 papers collected in this volume, more than half are from sources other than Geophysics. The applications covered in this book include interpretation of complicated subsurface structures, research into elastic and anisotropic wave phenomena, and teaching of fundamental seismic principles. |
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Page 86
... diffraction pattern being visible here also . It seems rather evident that if diffraction patterns are to be used as a means of locating normal faulting this would be best accomplished by placing the explosion to one side of the fault ...
... diffraction pattern being visible here also . It seems rather evident that if diffraction patterns are to be used as a means of locating normal faulting this would be best accomplished by placing the explosion to one side of the fault ...
Page 214
Daniel A. Ebrom, John Andrew McDonald. Diffraction of a Longitudinal Pulse from a Wedge in a Solid W. W. GRANNEMANN California Research Corporation , La Habra , California ( Received January 20 , 1956 ) The diffraction theory developed ...
Daniel A. Ebrom, John Andrew McDonald. Diffraction of a Longitudinal Pulse from a Wedge in a Solid W. W. GRANNEMANN California Research Corporation , La Habra , California ( Received January 20 , 1956 ) The diffraction theory developed ...
Page 390
... diffraction tomography techniques to geo- physical problems and formulated the filtered backpropaga- tion reconstruction algorithm for geophysical diffraction tomography . These studies were tested using forward theoreti- cal models or ...
... diffraction tomography techniques to geo- physical problems and formulated the filtered backpropaga- tion reconstruction algorithm for geophysical diffraction tomography . These studies were tested using forward theoreti- cal models or ...
Contents
Contents | 22 |
Chapter 2 Early work | 54 |
Experimental studies on elastic waves Part 1 | 61 |
Copyright | |
31 other sections not shown
Common terms and phrases
acoustic amplitude angle of incidence anisotropy approximation arrival attenuation axis Babinet's principle boundary calculated coefficient components compressional wave computed crack density critically refracted cross-borehole curve depth detector diffraction dilatational direction displacement distance elastic waves energy epoxy equation experimental experiments field fractures frequency function geophone Geophys Geophysics head wave horizontal inch interface inversion isotropic laboratory laser ultrasonics layer measured medium method migration motion normal observed obtained offset P-wave parameters phase phase velocity physical model plane wave plate Poisson's ratio polarization problem pulse ratio Rayleigh wave raypaths record reflection reflection coefficient reflector sample scattered screen seismic model seismic waves seismograms seismology shear waves shear-wave shown in Figure shows solid solution source and receiver stack Stoneley surface waves technique theoretical theory thickness tion tomography trace transducer transverse traveltime two-dimensional ultrasonic values vertical wave propagation wave velocity waveforms wavelength