Accession Number : AD0856115

Title :   Fine Structure of the Upper Mantle.

Descriptive Note : Seismic data lab. rept.,

Corporate Author : TELEDYNE INDUSTRIES INC ALEXANDRIA VA EARTH SCIENCES DIV

Personal Author(s) : Flinn, E. A. ; Lambert, D. G. ; Archambeau, C. B.

Report Date : 15 MAY 1969

Pagination or Media Count : 124

Abstract : The lateral and radial variations of upper mantle elastic velocities are required in considerable detail for an understanding of the physical state of the material in the mantle. This same information is required for any quantitative discussion of tectonics and in general for models of dynamical processes associated with the evolution of the planet. In this study we use the spectral amplitudes and travel times of seismic body waves to determine mantle velocity structures appropriate to distinct structural provinces within the western continental United States. In addition to basic amplitude and time data, travel time delays and Pn velocity data from other studies are used as constraints in the systematic inversion of the data for mantle structure. (Author)

Descriptors :   (*UNITED STATES, STRUCTURAL GEOLOGY), (*STRUCTURAL GEOLOGY, SEISMIC WAVES), POWER SPECTRA, MATHEMATICAL MODELS, ROCK, ANOMALIES, PHASE STUDIES, INTEGRAL TRANSFORMS, APPROXIMATION(MATHEMATICS), MOUNTAINS.

Subject Categories : Geology, Geochemistry and Mineralogy

Distribution Statement : APPROVED FOR PUBLIC RELEASE