pure and applied geophysics

, Volume 114, Issue 4, pp 647–652 | Cite as

The influence of lateral variations on seismic refraction interpretation

  • B. L. N. Kennett
Article
Received:

Abstract

The effects of unsuspected lateral variation in seismic velocities at depth on the interpretation of a seismic refraction profile are discussed with the aid of a numerical experiment. The results show that there will be bias in any velocity depth models derived by travel time analysis based on the assumption of horizontally layered media. This bias is examined for a lithospheric profile using both extremal and linearised travel time inversion. In addition quite mild subsurvace topography can have an appreciable effect on the amplitude distribution along the profile.

Keywords

Travel Time Numerical Experiment Refraction Lateral Variation Time Analysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Birkhäuser Verlag 1976

Authors and Affiliations

  • B. L. N. Kennett
    • 1
  1. 1.Department of Geodesy and GeophysicsUniversity of CambridgeCambridgeEngland

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