Phase velocity structure from Rayleigh and Love waves in Tibet and its neighboring regions
نویسندگان
چکیده
منابع مشابه
Global anisotropic phase velocity maps for higher mode Love and Rayleigh waves
S U M M A R Y It is well established that the Earth’s uppermost mantle is anisotropic, but there are no clear observations of anisotropy in the deeper parts of the mantle. Surface waves are well suited to observe anisotropy since they carry information about both radial and azimuthal anisotropy. Fundamental mode surface waves, for commonly used periods up to 200 s, are sensitive to structure in...
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iran is situated in one of the world's seismic regions and the possibility of destructive earthquakes in most regions of the country has given great significance to recognition of iranian seismic nature from a seismic and seismotectonic standpoint. study of the crust and upper mantle velocity structure in the iranian plateau provides better understanding of its evolution and tectonic histo...
متن کاملSensitivity of Near-Surface Shear-Wave Velocity Determination from Rayleigh and Love Waves
Rayleigh and Love waves recorded on seismic-shot gathers can be used to determine the thickness and shear-wave velocity of shallow subsurface layers. After the data are transformed into the k-f domain, the dispersion curve for each of the phases can be picked from maxima on the contour plot. This dispersion curve is then inverted for the velocities and depths. Different frequencies in the dispe...
متن کاملReply to comment by S. Crampin on ‘Global anisotropic phase velocity maps for higher mode Love and Rayleigh waves’
S U M M A R Y We thank Stuart Crampin for his interest in our recent paper but respectfully disagree when he argues that our measurements are not appropriate for inferring mantle anisotropy. The approximations we made are common and perfectly acceptable for the considered frequency band. The comment ignores a large part of the literature which investigated this. We will discuss the validity of ...
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Love waves are generally less employed than Rayleigh waves in near-surface shear-wave (S-wave) investigations because acquiring S-wave data is not as easy as acquiring P-wave data. The dispersion of Love waves, however, is independent of Poisson’s ratio. This character can be the valuable basis to improve the S-wave velocity imaging. The sensitivity of earth properties to the dispersion curve o...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Solid Earth
سال: 1998
ISSN: 0148-0227
DOI: 10.1029/98jb00953