Results 21 to 30 of about 509,969 (294)

Global Patterns in Cratonic Mid‐Lithospheric Discontinuities From Sp Receiver Functions

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The goal of this study is to constrain the origins of layering in the seismic velocity structure within the cratonic mantle lithosphere (i.e. mid‐lithospheric discontinuities [MLDs]).
Hannah E. Krueger   +2 more
doaj   +1 more source

An upper mantle seismic discontinuity beneath the Galápagos Archipelago and its implications for studies of the lithosphere‐asthenosphere boundary

open access: yesGeochemistry, Geophysics, Geosystems, 2015
An upper mantle seismic discontinuity (the Gutenberg or G discontinuity), at which shear wave velocity decreases with depth, has been mapped from S‐to‐p conversions in radial receiver functions recorded across the Galápagos Archipelago. The mean depth of
Joseph S. Byrnes   +5 more
doaj   +1 more source

Estimation of Plunge Value in Single- or Multi-Layered Anisotropic Media Using Analysis of Fast Polarization Direction of Shear Waves [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2018
Estimation of the fast polarization direction of shear seismic waves that deviate from horizontal axis is a valuable approach to investigate the characteristics of the lower crust and uppermost mantle structures.
K. Latifi, A. Sadidkhouy, M. R. Ghassemi
doaj   +1 more source

Strategic information transmission and stochastic orders [PDF]

open access: yes, 2012
I develop new results on uniqueness and comparative statics of equilibria in the Crawford and Sobel (1982) strategic information transmission game. For a class of utility functions, I demonstrate that logconcavity of the density implies uniqueness of ...
Szalay, Dezsö
core   +2 more sources

Seismic evidence for tearing in the subducting Indian slab beneath the Andaman arc

open access: yesGeophysical Research Letters, 2016
Segmentation of a subduction zone through tearing is envisaged as an inevitable consequence of the differential rate of slab rollback along the strike of convergent plate boundaries.
Prakash Kumar   +2 more
doaj   +1 more source

Regional mapping of the crustal structure in southern California from receiver functions [PDF]

open access: yes, 2007
Lateral variations of the crustal structure in southern California are determined from receiver function (RF) studies using data from the Southern California Seismic Network broadband stations and Los Angeles Regional Seismic Experiment surveys.
Clayton, R. W., Yan, Z.
core   +1 more source

Multiple layers of seismic anisotropy and a low‐velocity region in the mantle wedge beneath Japan: Evidence from teleseismic receiver functions

open access: yesGeochemistry, Geophysics, Geosystems, 2012
A complete characterization of seismic anisotropy can yield powerful constraints on mantle flow and deformation. This is particularly important for the mantle wedge above subducting slabs, where the geometry of mantle flow remains poorly understood.
Erin A. Wirth, Maureen D. Long
doaj   +1 more source

Receiver Function Analysis Reveals Lateral Variations in Temperature and Water Content in the Mantle Transition Zone Beneath Eastern North America

open access: yesGeophysical Research Letters, 2023
Using recently collected high‐resolution seismic data along a dense linear transect across Ohio, West Virginia, and Virginia (called Mid‐Atlantic Geophysical Integrative Collaboration (MAGIC) profile), we analyze P‐to‐S receiver functions to investigate ...
Shangxin Liu   +4 more
doaj   +1 more source

Crustal structure of southeast Australia from teleseismic receiver functions [PDF]

open access: yesSolid Earth, 2021
In an effort to improve our understanding of the seismic character of the crust beneath southeast Australia and how it relates to the tectonic evolution of the region, we analyse teleseismic earthquakes recorded by 24 temporary and 8 permanent broadband ...
M. Bello   +5 more
doaj   +1 more source

Receiver function summation without deconvolution [PDF]

open access: yesGeophysical Journal International, 2010
SUMMARY The separation of the structural effects below a seismic station from other effects like structures far away or from source–time functions is the fundamental problem of the receiver function technique. Two solutions of this problem have been suggested in the early days of the receiver function analysis. One is to model the complete wavefield
Kumar, P., Kind, R., Yuan, X.
openaire   +4 more sources

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