Comment on “SKS splitting beneath continental rifts zones” by Gao et al. [PDF]
International audienceAs previously suggested by many authors, shear wave splitting rneasurernents certainly provide the best insights on the tectonic structure (or fabric) of the upper mantle.
Achauer +34 more
core +2 more sources
Wave speeds and Green’s tensors for shear wave propagation in incompressible, hyperelastic materials with uniaxial stretch [PDF]
Assessing elastic material properties from shear wave propagation following an acoustic radiation force impulse (ARFI) excitation is difficult in anisotropic materials because of the complex relations among the propagation direction, shear wave ...
Caenen, Annette +2 more
core +1 more source
Finite-frequency sensitivity of body waves to anisotropy based upon adjoint methods [PDF]
We investigate the sensitivity of finite-frequency body-wave observables to mantle anisotropy based upon kernels calculated by combining adjoint methods and spectral-element modelling of seismic wave propagation.
Liu, Qinya +3 more
core +1 more source
Mid-mantle deformation inferred from seismic anisotropy [PDF]
With time, convective processes in the Earth's mantle will tend to align crystals, grains and inclusions. This mantle fabric is detectable seismologically, as it produces an anisotropy in material properties—in particular, a directional dependence in ...
A Yeganeh-Haeri +34 more
core +4 more sources
Shear-wave splitting in the mantle of the pacific [PDF]
SUMMARY The bulk of previously known data on seismic anisotropy in the suboceanic mantle was obtained from observations of azimuthal variations of the surface-wave and P, velocities. Our study of azimuthal anisotropy in the mantle of the Pacific is based on observations of shear-wave splitting. The idea of our method of measurement (Vinnik & Farra 1992)
Véronique Farra, Lev Vinnik
openaire +1 more source
Apparent Splitting of S Waves Propagating Through an Isotropic Lowermost Mantle [PDF]
Observations of shear wave anisotropy are key for understanding the mineralogical structure and flow in the mantle. Several researchers have reported the presence of seismic anisotropy in the lowermost 150–250 km of the mantle (i.e., D urn:x-wiley:jgrb ...
Ferreira, Ana M. G. +2 more
core +3 more sources
The upper crustal anisotropy of Yunnan area, SE margin of Tibetan Plateau, is investigated by measuring the shear wave splitting of local earthquakes.
Bo Zhang +3 more
doaj +1 more source
Seismic anisotropy beneath the Chinese Mainland: Constraints from shear wave splitting analyses
We use earthquakes recorded by the China National Seismic Network from 2015 to 2019 and measure shear wave splitting parameters of SKS to study the anisotropic characteristics beneath the mainland of China.
Lingxia Gao, Daoyuan Sun
doaj +1 more source
The formation of Laurentia : Evidence from shear wave splitting [PDF]
The authors would like to thank A. Walker for invaluable help understanding the MSAT forward modelling code, as well as A. Boyce, L. Petrescu, and C.
Bastow, Ian +4 more
core +2 more sources
Deriving micro- to macro-scale seismic velocities from ice-core c axis orientations [PDF]
One of the great challenges in glaciology is the ability to estimate the bulk ice anisotropy in ice sheets and glaciers, which is needed to improve our understanding of ice-sheet dynamics.
J. Kerch +6 more
doaj +1 more source

