Accession Number:

ADA094890

Title:

Some Aspects of L sub g and P sub g Propagation (Some Aspects of Lg and Pg Propagation)

Descriptive Note:

Technical rept.

Corporate Author:

TELEDYNE GEOTECH ALEXANDRIA VA SEISMIC DATA ANALYSIS CENTER

Report Date:

1979-03-19

Pagination or Media Count:

67.0

Abstract:

L sub g and P sub g P wavetrains consist of S and P waves trapped in the continental crust. The modal structure of these waves can be approximated from ray-tracing and Brunes 1964 constructive interference criteria for normal modes. Ray theory arguments show that the modes involved in L sub g and P sub g propagation are extremely sensitive to internal random inhomogeneities in the crust and small deviations of the free surface or the Moho from plane parallel surfaces.

Subject Categories:

  • Seismology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE