Variations of Upper Mantle Structure under the Pacific Ocean

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Science  11 Oct 1974:
Vol. 186, Issue 4159, pp. 141-143
DOI: 10.1126/science.186.4159.141


The inversion of Rayleigh wave dispersion data for the Pacific Ocean shows that lithospheric thickness increases systematically with age. The lid to the low-velocity channel is very thin or absent near the ridge crest; the low-velocity channel may be absent in the oldest parts of the ocean.