Global mantle flow and the development of seismic anisotropy: Differences between the oceanic and continental upper mantle

CP Conrad, MD Behn, PG Silver - Journal of Geophysical …, 2007 - Wiley Online Library
Viscous shear in the asthenosphere accommodates relative motion between Earth's surface
plates and underlying mantle, generating lattice‐preferred orientation (LPO) in olivine …

Trench-parallel flow and seismic anisotropy in the Mariana and Andean subduction systems

EA Kneller, PE Van Keken - Nature, 2007 - nature.com
Shear-wave splitting measurements above the mantle wedge of the Mariana and southern
Andean, subduction zones show trench-parallel seismically fast directions close to the …

Theory and observations—wave propagation in anisotropic media

V Maupin, J Park, B Romanowicz… - Seismology and the …, 2007 - books.google.com
In order to understand what anisotropy is, it is important to realize the fundamental difference
between anisotropy and heterogeneity, as well as their intimate relation. By definition, an …

Seismic anisotropy reveals focused mantle flow around the Calabrian slab (Southern Italy)

P Baccheschi, L Margheriti… - Geophysical Research …, 2007 - Wiley Online Library
SKS splitting at the Calabrian subduction zone, with delay times (δt) up to 3s, reveals the
presence of a strong anisotropic fabric. Fast directions (ϕ) are oriented NNE‐SSW in the …

Upper-mantle flow beneath French Polynesia from shear wave splitting

FR Fontaine, G Barruol, A Tommasi… - Geophysical Journal …, 2007 - academic.oup.com
Upper-mantle flow beneath the South Pacific is investigated by analysing shear wave
splitting parameters at eight permanent long-period and broad-band seismic stations and 10 …

Finite-frequency sensitivity of body waves to anisotropy based upon adjoint methods

A Sieminski, Q Liu, J Trampert… - Geophysical Journal …, 2007 - academic.oup.com
We investigate the sensitivity of finite-frequency body-wave observables to mantle
anisotropy based upon kernels calculated by combining adjoint methods and spectral …

[图书][B] Mantle plumes

JRR Ritter, UR Christensen - 2007 - Springer
The concept of mantle plumes, originally suggested by Morgan (1971), is widely but not
unequivocally accepted as the cause for hotspot volcanism. Plumes are thought of as deep …

Two-dimensional modelling of subduction zone anisotropy with application to southwestern Japan

MD Long, BH Hager, MV De Hoop… - Geophysical Journal …, 2007 - academic.oup.com
We present a series of 2-D numerical models of viscous flow in the mantle wedge induced
by a subducting lithospheric plate. We use a kinematically defined slab geometry …

Surface wave tomography of the upper mantle beneath the Reykjanes Ridge with implications for ridge–hot spot interaction

AA Delorey, RA Dunn… - Journal of Geophysical …, 2007 - Wiley Online Library
We modeled fundamental mode Love and Rayleigh waves to study the seismic properties of
the upper mantle beneath the Reykjanes Ridge. These waves were generated by regional …

Dynamic models for mantle flow and seismic anisotropy in the North Atlantic region and comparison with observations

G Marquart, H Schmeling… - Geochemistry, Geophysics …, 2007 - Wiley Online Library
Dynamic mantle flow and temperature models for the North Atlantic based on a regionalized
P‐wave and a global S‐wave tomography model were derived under the constraint of a …