Variations of Upper Mantle Structure under the Pacific Ocean.
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.
Leeds
A R
AR
Knopoff
L
L
Kausel
E G
EG