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Variations in the upper mantle structure as derived fromP n andS n waves

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Summary

Observed travel-times ofP n andS n waves are used to determine the ratio ofP n toS n velocities, Poisson’s ratio and the ratio of incompressibility to shear modulus for Europe, Japan, North America and Scandinavia. The analysis of the data reveals that theP n toS n velocity ratio decreases when theP n velocity increases for Scandinavia and North America, while the velocity ratio increases when theP n velocity increases for Europe and Japan.

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Authors and Affiliations

  1. University of Tromsø, N-9000, Tromsø, Norway

    Vebjørn Fagernes

  2. Seismological Observatory, University of Bergen, N-5000, Bergen, Norway

    Reidar Kanestrøm

Authors
  1. Vebjørn Fagernes
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  2. Reidar Kanestrøm
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Fagernes, V., Kanestrøm, R. Variations in the upper mantle structure as derived fromP n andS n waves. PAGEOPH 109, 1762–1772 (1973). https://doi.org/10.1007/BF00876102

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  • DOI: https://doi.org/10.1007/BF00876102

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