Journal ArticleDOI
Effects of a rigid core on the reflection and transmission coefficients from a multi-layered core-mantle boundary
TLDR
In this article, the authors present the formulations which can be used in calculating reflection and transmission coefficients when the rigidity in the core is taken into consideration, and the theoretical curves are used as a guide for studies of the physical parameters of the core-mantle boundary.Abstract:
The aim of this paper is to present the formulations which can be used in calculating reflection and transmission coefficients when the rigidity in the core is taken into consideration. The theoretical curves presented can be used as a guide for studies of the physical parameters of the core-mantle boundary. It is hoped that these curves may lead to a clarification of the great differences between observed data and theoretical calculations, when the geometrical spreading and attenuation are taken into account.read more
Citations
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Journal ArticleDOI
Small-scale changes of core-mantle boundary reflectivity studied using core reflected PcP
Sebastian Rost,Justin Revenaugh +1 more
TL;DR: In this article, the amplitude ratios of short-period PcP phases from earthquakes in the western Aleutians recorded at the Canadian Yellowknife array (YKA) sample the core-mantle boundary (CMB) beneath the Alaskan Kenai peninsula and the Cook inlet.
Journal ArticleDOI
Evidences for a low-velocity core-mantle transition zone
TL;DR: In this article, the spectral ratios P PcP, ScS n+1 ScS N, sScS N+1 sSCS n and SKS ScS S n were used to fit the empirical data to support the hypothesis of a finite rigid outer core and a layered core-mantle transition zone.
Journal ArticleDOI
Problems related to PcP and the core-mantle boundary illustrated by two nuclear events
TL;DR: In this article, it was shown that the reflection coefficient of the core-mantle boundary (cmb) may be approximated by a thin high-impedance liquid layer of several kilometers in thickness embedded between the mantle and the core, which can explain observed dilatational arrivals and a small decrease in amplitude near Δ ≈ 30°.
Journal ArticleDOI
The amplitude ratio PcP/P and the core-mantle boundary
TL;DR: In this article, a model for the core-mantle boundary is found, characterized by two low-velocity layers at the bottom of the mantle, and four different models for the quality factorQ are applied to the observational data.
Journal ArticleDOI
The Determination of P-wave Attenuation Values in the Earth's Mantle
TL;DR: In this article, a direct determination of the P-waveattenuation parameter in the Earth's mantle is made using changes in the form of Pwave amplitude spectra as a function of distance.
References
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Book ChapterDOI
The Dispersion of Surface Waves on Multilayered Media
TL;DR: In this paper, a matrix formalism developed by W. T. Thomson is used to obtain the phase velocity dispersion equations for elastic surface waves of Rayleigh and Love type on multilayered solid media.
Journal ArticleDOI
Crustal Reflection of Plane SH Waves
TL;DR: In this paper, the amplitude of free surface displacement due to plane SH waves incident at any angle at the base of a layered crust was derived for the case of a single-layered model of the continental crust.
Journal ArticleDOI
Crustal reflection of plane P and SV waves
TL;DR: In this paper, a computer program has been written to calculate normalized surface displacements as functions of horizontal phase velocity (or angle of incidence) and wave period in a single-layer model of the continental crust.
Journal ArticleDOI
On the Earth tide of the compressible Earth of variable density and elasticity
TL;DR: In this article, a theoretical study of the phenomena of Earth tides is presented, where the differential equations of stress and motion are established to allow solution under various hypotheses as to elasticity, compressibility, and density in the interior of the Earth, and numerical integrations are made for several Earth models with internal constitutions inferred from recent studies of seismology combined with K. E. Bullen's studies of the density distribution.
Related Papers (5)
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