. The Earth beneath the sea : History . .^^^ ' O ?0x ° MjA-O -n~ ^^/i- —r— o '0 0 A Xontinental dispersion () — A Honolulu direct ° Tucson direct + Tucson inverse 0 Berkeley direct ^ Berkeley inverse o Palisades direct U Palisades inverse 0 15 20 25 Period (sec) 30 35 Fig. 9. Dispersion oliservations of oceanic Rayleigh waves from tlie Solomon Islands earthquake of 29 July, , plotted with a theoretical oceanic dispersion curve (Ewing and Press, 1952). Waves over both the direct and antipodal paths were used at Berkeley, Tucson and Palisades, and over the direct path only at
. The Earth beneath the sea : History . .^^^ ' O ?0x ° MjA-O -n~ ^^/i- —r— o '0 0 A Xontinental dispersion () — A Honolulu direct ° Tucson direct + Tucson inverse 0 Berkeley direct ^ Berkeley inverse o Palisades direct U Palisades inverse 0 15 20 25 Period (sec) 30 35 Fig. 9. Dispersion oliservations of oceanic Rayleigh waves from tlie Solomon Islands earthquake of 29 July, , plotted with a theoretical oceanic dispersion curve (Ewing and Press, 1952). Waves over both the direct and antipodal paths were used at Berkeley, Tucson and Palisades, and over the direct path only at Honolulu. Corrections were made for the continental portions of the paths. Within the precision of the experiment no significant difference exists between data for the antipodal path through the Indian and Atlantic Oceans and data for the direct path through the Pacific Ocean. This is indicative of the uniformity of water depth and bottom structure in all of the oceans. Basin to have an oceanic crust and found the crustal thickness of New Zealand and the nearby shallow submarine ridges to be about 20 km. Bath and Vogel (1958) found dispersion curves of oceanic character for Love and Rayleigh waves across the Norwegian sea. In general, for the deep basins of the Atlantic and Pacific, the higher- velocity Love-w^ave observations are consistent with a basaltic crust about 6 km
Size: 5437px × 920px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodivers, booksubjectoceanbottom
