Method of Exciting Transverse Waves in Seismic Prospecting Operations,
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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The method of transverse waves in seismic prospecting has a number of advantages in comparison with the method of longitudinal waves. Explosive methods of excitating transverse waves by which the directed effect of an explosion is created and used were tested. This wide testing of explosive sources became possible with the introduction of the method of selecting seismic waves according to the principle of polarization, when the longitudinal waves excited during explosions are successfully suppressed by the subtraction of the notations of differently directed explosions, during which transverse waves, undergoing inversion, add themselves up, while longitudinal waves cancel each other out.