Letter | Published:

Travel-time Tables for the Seismic Wave PKP

Naturevolume 207pages967969 (1965) | Download Citation



RECENTLY I published some contributions1,2 on the problem of the structure of the Earth's core. In the course of this work a considerable amount of observational material on the seismic core phase PKP was examined and empirical seismological travel-time tables for two branches of the PKP curve were derived from the observations. A number of seismologists have suggested that it would be useful to them if such tables were published.

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  1. 1

    Bolt, B. A., Nature, 196, 122 (1962).

  2. 2

    Bolt, B. A., Bull. Seis. Soc. Amer., 54, 191 (1964).

  3. 3

    Jeffreys, H., and Bullen, K. E., Seismological Tables (Brit. Assoc. Adv. Sci., Gray-Milne Trust, 1958).

  4. 4

    Bolt, B. A., Geophys. J., 2, 190 (1959).

  5. 5

    Bolt, B. A., Bull. Seis. Soc. Amer., 51, 259 (1961).

  6. 6

    Jeffreys, H., Mon. Not. Roy. Astro. Soc., Geophys. Supp., 5, 33 (1942).

  7. 7

    Griggs, D. T., and Press, F., J. Geophys. Res., 66, 237 (1961).

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  1. Seismographic Station, Department of Geology and Geophysics, University of California, Berkeley



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