Accession Number : AD0641312

Title :   INVESTIGATIONS ON THE NONELASTIC BEHAVIOR OF THE UPPER MANTEL.

Descriptive Note : Annual summary rept. no. 1, 1 May 65-30 Apr 66,

Corporate Author : TECHNISCHE HOCHSCHULE KARLSRUHE (WEST GERMANY) GEOPHYSIKALISCHES INSTITUT

Personal Author(s) : Mueller,Stephan ; Fuchs,Karl

Report Date : 20 MAY 1966

Pagination or Media Count : 60

Abstract : 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)

Descriptors :   (*SEISMIC WAVES, SPECTROSCOPY), ATTENUATION, EARTH(PLANET), EUROPE, WEST GERMANY, VELOCITY, ELASTIC PROPERTIES

Subject Categories : Seismology

Distribution Statement : APPROVED FOR PUBLIC RELEASE