Accession Number : ADP204453
Title : High-Frequency Shear Wave Generation at Pre-existing Cracks,
Corporate Author : PHILLIPS LAB HANSCOM AFB MA
Personal Author(s) : Jih, R. S. ; Dainty, A. M.
PDF Url : ADP204453
Report Date : 14 AUG 1995
Pagination or Media Count : 1
Abstract : Recent observational studies indicate that, relative to decoupled explosions, tamped explosions tend to have a larger high frequency Lg/P ratio. Discrimination using such ratios is promising, and yet little is known about the basis for this discriminant. Improved fundamental understanding of the reasons this discriminant may be successful is desired. A plausible explanation offered by Blandford (19S5) is that tamped explosions generate more high-frequency S waves due to the cracks in the source region.
Descriptors : *SEISMIC DETECTION, *SEISMIC WAVES, *NUCLEAR EXPLOSION DETECTION, *SEISMIC DISCRIMINATION, HIGH FREQUENCY, SYMPOSIA, MONITORING, CRACKS, UNDERGROUND EXPLOSIONS, NUCLEAR EXPLOSION TESTING, WAVE PROPAGATION, ARMS CONTROL, TREATIES, ELASTIC WAVES, SECONDARY WAVES.
Subject Categories : Seismology
Seismic Detection and Detectors
Government and Political Science
Distribution Statement : APPROVED FOR PUBLIC RELEASE