Earth Waves"Much of the material was assembled ... for presentation as a course of eight lectures on 'Applications of seismological techniques to engineering problems' for the Lowell Institute of Boston in the autumn of 1946"--Preface. |
Contents
The Measurement of Earth Waves 1 | 1 |
Observed Types of Earth Waves | 38 |
Transmission of Earth Waves | 58 |
Copyright | |
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Common terms and phrases
acceleration amplitude angle of incidence angular frequency apparent velocity axis complex numbers components computed constant curve damping decrease depth displacement distance dynamite blasts earth waves earthquake earthquake waves elastic energy equation Fermat's principle focus forced vibrations formulas ft/sec galvanometer Harvard horizontal inertia member instrument L. D. Leet layers longitudinal longitudinal wave magnification mass maxima microseismic microseisms Mississippi Lime modulus natural frequency natural period obtained oscillate P₁ P₂ parallel particle path phase plane position propagation quantities radians Ramirez ratio Rayleigh waves rays real numbers reflected refraction represented Reversed profiles S-waves S₁ salt domes seismic prospecting seismo seismograph seismology shear shown in Fig shows simple harmonic motion slope solution of Eq storm surface waves symbol Timing-line tion top of medium transducer transverse waves travel-time graph travel-time line tripartite network v₁ vertical wave front wave types X-axis zero