Actions for Inversion of Rayleigh wave phase velocities between RSNT and RSON
Inversion of Rayleigh wave phase velocities between RSNT and RSON
- Author
- Randall, G. E.
- Published
- United States : [publisher not identified], 1985
Springfield, Va.: National Technical Information Service, [approximately 1985] - Physical Description
- microfiche : negative ; 11 x 15 cm
- Additional Creators
- Taylor, S. R.
- Summary
- Rayleigh wave phase velocities in the Canadian Shield are estimated for the path between RSNT and RSON in the period range of 10 to 100 sec. Frequency dependent stacking techniques are employed to form an estimate of phase velocity from a limited data set of marginal quality. Inversion of the phase velocities for shear velocity structure indicates an average crustal thickness of 40 km which is consistent with results from previous studies. The lower crustal velocities from our study appear to be slightly greater than those from other studies and Sn velocities along the path are about 4.7 km/s. The effectiveness of the frequency dependent stacking techniques confirms the assumption of signal-independent background noise dominating the records for periods less than about 30 sec and signal-dependent multipathing noise dominating for periods longer than about 40 sec. 14 refs., 5 figs., 2 tabs.
- Report Numbers
- DE85013242; UCID-20504
- Other Subject(s)
- 45 military technology, weaponry, and national defense
- 450300 - military technology, weaponry, & national defense- nuclear explosion detection
- 58 geosciences
- 580201 - geophysics- seismology & tectonics- (1980-1989).
- Canada
- Data
- Earth crust
- Experimental data
- Information
- Measuring instruments
- North america
- Numerical data
- Rayleigh waves
- Seismic arrays
- Seismic surface waves
- Seismic waves
- Velocity
- Collection
- NTIS collection.
- Note
- DOE contract number: W-7405-ENG-48
OSTI Identifier 5433244
Research organization: Lawrence Livermore National Lab., CA (USA).
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