An informative solution to a seismological inverse problem.
Preliminary results are presented that infer that 2 sec should be added to the tabular values for P phases and 4 sec to the tabular values for S phases of seismic travel times. From seismic evidence, the radius of the inner core of the Earth is 1229-1250 km; the radius of the outer core is 3482-3485 km. Data are presented relating resolving power with error of measurement for the Earth's mantle.
Gilbert
F
F
Institute of Geophysics & Planetary Physics, Scripps Institution of Oceanography, University of California, San Diego, Calif. 92037.
Dziewonski
A
A
Brune
J
J