INVESTIGATIONS ON THE NONELASTIC BEHAVIOR OF THE UPPER MANTEL.
Annual summary rept. no. 1, 1 May 65-30 Apr 66,
TECHNISCHE HOCHSCHULE KARLSRUHE (WEST GERMANY) GEOPHYSIKALISCHES INSTITUT
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A procedure for the spectral analysis of seismic body waves is discussed. The specific attenuation factor may only be derived after properly correcting for the effects of instrumental distortion, of the receiver and source crust, the propagation effect in the upper mantle and the source spectrum. Response curves for 5 different seismograph systems are presented. The crust is approximated by a flat layer model. The transfer function for the system of a point source in the crust was derived for three basic types an explosive source, a single couple and a double couple. The explosive type of point source appears to be more suited for attenuation studies since the source spectrum is simpler than spectra of more complicated source types. Author