The Estimation of Density, P-Wave, and S-Wave Speeds of the Top-Most Layers of Sediments

  • S. Levy
  • J. Cabrera
  • K. Stinson
  • D. Oldenburg
  • R. Chapman

Abstract

Reflection arrivals from the water bottom are analysed and estimates of the elastic parameters in the top-most layers of sediments are calculated. The amplitude of the reflection coefficient from an interface is a function of the angle of incidence of the incoming source energy at the reflecting interface, and the contrasts in the density, and P- and S-wave speeds across the interface. A nonlinear parametric inversion has been developed to yield estimates of these elastic parameters from the amplitude offset information contained in pre-critical reflections. The inversion method is applied to synthetic data and also to data from the Cascadia Basin.

Keywords

Steam Propa Explosive Convolution Ghost 

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References

  1. Aki, K., and Richards, P., 1980, Quantitative Seismology Theory and Methods. San Francisco: W.H. Freeman and Co.Google Scholar
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Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • S. Levy
    • 1
  • J. Cabrera
    • 1
  • K. Stinson
    • 1
  • D. Oldenburg
    • 1
  • R. Chapman
    • 2
  1. 1.IT&ACanada
  2. 2.Department of National DefenceRichmondCanada

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