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Compressional wave anisotropy in the crust and upper mantle
Author(s) -
Bibee L. D.,
Shor G. G.
Publication year - 1976
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl003i011p00639
Subject(s) - geology , anisotropy , mantle (geology) , crust , geophysics , azimuth , seismology , physics , quantum mechanics , astronomy
We have examined a large number of standard marine refraction stations to determine the general relation of crustal and mantle velocity to spreading direction and age in the Pacific. Crustal anisotropy is insignificant, as is variation of lower crustal velocity with age. Mantle velocities exhibit a high correlation with both age and azimuth indicating an increase of velocity with age and about 5% anisotropy with highest velocity in the direction perpendicular to the local magnetic anomalies.