Electronic Resource
Oxford, UK
:
Blackwell Publishing Ltd
Geophysical journal international
107 (1991), S. 0
ISSN:
1365-246X
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Geosciences
Notes:
The detection and evaluation of anisotropy in realistic earth structures by P-wave measurements is difficult. It is generally assumed that absolute velocity variations with azimuth must be measured but it has also been shown that heterogeneity may make it impossible to do this. It may even be impossible to establish that anisotropy has any part in the generation of the observations. We have found, however, that the whole appearance of wide-angle seismic sections generated by a realistic anisotropic lithosphere changes systematically with azimuth and propose that this can be an important diagnostic. As long as the degree of lateral heterogeneity is not too great, it is even possible to measure anisotropic structure at depth using vertical component seismic sections only.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-246X.1991.tb01430.x
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