On Regional Differences in Dispersion of Mantle Rayleigh Waves
نویسندگان
چکیده
منابع مشابه
Anisotropy induced dispersion behaviors of Rayleigh waves
Surface wave analysis is sometimes used in engineering investigations to obtain ground stiffness profiles by inversed modeling of dispersion velocities. Since dispersion data may be polarized due to material anisotropy, a thorough understanding of the dispersion property is necessary for the accurate reconstruction of inversion models. Based on the general constitutive relation of stress and st...
متن کاملRayleigh-wave dispersion reveals crust-mantle decoupling beneath eastern Tibet
The Tibetan Plateau results from the collision of the Indian and Eurasian Plates during the Cenozoic, which produced at least 2,000 km of convergence. Its tectonics is dominated by an eastward extrusion of crustal material that has been explained by models implying either a mechanical decoupling between the crust and the lithosphere, or lithospheric deformation. Discriminating between these end...
متن کاملRayleigh Waves
The table of source phase differences between Rayle igh and Love waves which was described in Pa r t I and used in Pa r t 2 is presented in a concise form for the case of a surface focus.
متن کاملWorldwide Distribution of Group Velocity of Mantle Rayleigh Waves as Determined by Spherical Harmonic Inversion
We have determined the worldwide distribution of group velocity of mantle Rayleigh waves for periods between 100 and 300 sec without assuming any regionalization. Group slowness 11 u(fJ, q,) is expressed by spherical harmonics, and the coefficients, up to angular order 7, have been determined from travel times of Rayleigh waves by a least-squares method. From these, u(fJ, q,) has been synthesiz...
متن کاملLocalization of Rayleigh waves
We study the localization of Rayleigh waves propagating in a semi-infinite and isotropic medium with inhomogeneities that are modeled as rods parallel to the incoming wave front and are distributed randomly up to a maximum depth. For a perfectly smooth surface, the localization length of a Rayleigh wave is predicted to reach a minimum at intermediate wavelength l and to diverge for both low and...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 1971
ISSN: 0956-540X,1365-246X
DOI: 10.1111/j.1365-246x.1971.tb03601.x