On: “Refraction Determination of Water Table Depth and Alluvium Thickness” by James Otto Duguid (GEOPHYSICS, June 1968, p. 481–488)

Geophysics ◽  
1968 ◽  
Vol 33 (6) ◽  
pp. 1019-1020
Author(s):  
Lyle V. A. Sendlein
Keyword(s):  
Water Table ◽  
Seismic Refraction ◽  
Water Table Depth ◽  
Shallow Seismic ◽  
Seismic Refraction Data ◽  
Refraction Data

Mr. Duguid’s study provides an opportunity to compare borehole information with shallow seismic refraction data. The single geophone technique is well adapted to very shallow refractors such as those present in this study.

Attenuation measurements on shallow seismic refraction data

Geophysics ◽  
1986 ◽  
Vol 51 (2) ◽  
pp. 250-254 ◽  
Author(s):  
P. J. Hatherly
Keyword(s):  
Field Data ◽  
Rock Type ◽  
Seismic Refraction ◽  
Seismic Attenuation ◽  
Computer Technique ◽  
Shallow Seismic ◽  
Seismic Refraction Data ◽  
Refraction Data ◽  
Pulse Broadening ◽  
Engineering Geophysics

Techniques of making seismic attenuation measurements are of interest in engineering geophysics because they allow rock type and quality to be estimated. The measurements may be made on field data from spectral amplitudes, amplitude decay curves, or observed pulse broadening. With shallow seismic refraction data, attenuation is best measured from the pulse broadening. I discuss the problem and demonstrate a computer technique for making routine measurements.

DETERMINATION OF DIPS AND DEPTHS OF GEOLOGICAL LAYERS BY THE SEISMIC REFRACTION METHOD

Geophysics ◽  
1954 ◽  
Vol 19 (2) ◽  
pp. 242-254 ◽  
Author(s):  
Lindonor Mota
Keyword(s):  
Seismic Refraction ◽  
Refraction Method ◽  
Seismic Refraction Method ◽  
Seismic Refraction Data ◽  
Refraction Data

Equations are developed for computing depths and dips of 1, 2, 3, ⋯, n inclined interfaces from seismic refraction data without the aid of graphical techniques.

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