Accession Number : AD0819610

Title :   THE RELATIONSHIP BETWEEN SIGNAL AMPLITUDES AND SURFACE GEOLOGY AT THE TFSO EXTENDED ARRAY.

Descriptive Note : Technical data rept.,

Corporate Author : GEOTECH GARLAND TX

Personal Author(s) : Bailey, J. R. ; Simons, R. S.

Report Date : 01 JUL 1967

Pagination or Media Count : 44

Abstract : A study of 48 teleseismic P waves recorded at six LRSM sites in Arizona shows a wide variance in the relative signal amplitudes among sites, although the mean amplitude at each site correlates very well with the seismic impedance of the stratum directly supporting the seismometers. A test indicates that this variability cannot be simply ascribed to differences in source or azimuth, suggesting that the amplitudes are reacting sensitively to changes in signal frequency and/or angle of incidence. (Author)

Descriptors :   *MICROSEISMS), (*ROCK, WAVE PROPAGATION), (*SEISMOLOGICAL STATIONS, ARIZONA, NETWORKS, STRATIGRAPHY, VELOCITY, ATTENUATION, CORRELATION TECHNIQUES, EARTHQUAKES, AZIMUTH, FREQUENCY, TIME, SOILS, RANGE(DISTANCE).

Subject Categories : Seismology
      Seismic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE