Comparison of azimuthal seismic anisotropy from surface waves and finite strain from global mantle-circulation models

By Thorsten W. Becker, J. Kellogg, G. Ekström, R. O’Connell. 2003

168 citations recorded by the source corpus.

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In Geophysics

Citations in the corpus

Models of large‐scale viscous flow in the Earth's mantle with constraints from mineral physics and surface observations (2006, background): “Similarly, other studies set density anomalies at lithospheric depths to zero (Lithgow-Bertelloni & Silver 1998; Becker et al. 2003; Behn et al. 2004).”
High Accuracy Mantle Convection Simulation through Modern Numerical Methods. II: Realistic Models and Problems (2017, methodology): “Following [Becker et al.(2003)] we can polar-decompose the tensor into a positive-deﬁnite and symmetric tensor L , and an orthogonal rotation tensor R , as F = LR , therefore L 2 = LL T = F F T .”
Seismic imaging: From classical to adjoint tomography (2012, background): “…δc/c. Similar to radial anisotropy, the strength and nature of azimuthal anisotropy vary broadly depending on the tectonic history and depth extent (Becker et al., 2003; Larson et al., 1998; Marone and Romanowicz, 2007; Montagner and Nataf, 1986; Montagner and Tanimoto, 1990; Park and Levin,…”
Global mantle flow and the development of seismic anisotropy: Differences between the oceanic and continental upper mantle (2007, methodology): “More sophisticated treatments for predicting LPO include finite strain accumulation [Becker et al., 2003] and full”
Organized melt, seismic anisotropy, and plate boundary lubrication (2010, background): “Beginning in the 1990s, studies of global mantle convection have sought to build models in which distinct plates develop self‐ consistently as part of the convective system [e.g., Zhong et al., 1998; Tackley, 2000a, 2000b; Ogawa, 2003; Bercovici, 2003; Bercovici and Ricard, 2005].”
D-Rex, a program for calculation of seismic anisotropy due to crystal lattice preferred orientation in the convective upper mantle (2004, methodology): “An alternative is to use a rather simple model that accounts for the basic macrophysics of the deformation mechanisms and is easy to incorporate in convection codes (Chastel et al. 1993; Tommasi 1998; Dawson & Wenk 2000; Blackman et al. 2002; Becker et al. 2003).”
On the effect of temperature and strain-rate dependent viscosity on global mantle flow, net rotation, and plate-driving forces (2006, unknown): “Given the general success of global flow models in large-scale mantle convection applications, the range of predicted synthetics for model verification has also been expanded to include, for instance, seismic anisotropy (e.g. Gaboret et al. 2003; Becker et al. 2003; Behn et al. 2004).”
Mantle dynamics and seismic anisotropy (2010, methodology): “Becker et al. (2003) tested the alignment of finite strain orientations as inferred from particle trajectories (cf. Hall et al., 2000) for several global flowmodels against a set of surface wave phase velocity maps.”
Statistical properties of seismic anisotropy predicted by upper mantle geodynamic models (2006, unknown): “We prescribe surface plate velocities in a no-net-rotation reference frame nonetheless, for consistency with [Becker et al., 2003].”
Radial seismic anisotropy as a constraint for upper mantle rheology (2007, methodology): “geoid, plate velocities), and were shown to be abetter predictor of azimuthal anisotropy than shear in the “absolute plate motion” hypothesis ( Becker et al., 2003 ), particularly underneath the oceanic plates (Becker et al., 2007b).”
Shear Wave Splitting and Mantle Anisotropy: Measurements, Interpretations, and New Directions (2009, background): “Complementary studies by, e.g., Becker et al. (2003) and Maggi et al. (2006) have had similar success in predicting the distribution of upper mantle azimuthal anisotropy (as constrained by surface waves) using global models of mantle flow and/or plate motions.”
An anisotropic shear velocity model of the Earth's mantle using normal modes, body waves, surface waves and long-period waveforms (2014, background): “The anisotropic variations can be used to address questions on mantle rheology and on planetary-scale dynamics such as the evolution of plate motions (e.g. Gaboret et al. 2003; Becker et al. 2003, 2008; Long & Becker 2010).”
Constraints on lithosphere net rotation and asthenospheric viscosity from global mantle flow models and seismic anisotropy (2010, methodology): “We choose the amplitude‐scaled HS3 model to represent the range of possible net rotations because, as discussed above, most other net rotation models produce similarly directed westward lithospheric drift, but with varying magnitudes that are all slower than that of the HS3 model [Becker, 2006; Bec”
Geodynamic Significance of Seismic Anisotropy of the Upper Mantle: New Insights from Laboratory Studies (2008, result): “This conclusion is different from the conventional view in which all observations of seismic anisotropy in the upper mantle are due to the A-type olivine fabric (e.g., Becker et al. 2003, Savage 1999).”
Implications of grain size evolution on the seismic structure of the oceanic upper mantle (2008, background): “…the East Pacific Rise (Wolfe & 71 Solomon, 1998; Harmon et al., 2004) and in young Pacific upper mantle (Nishimura & Forsyth, 72 1989; Montagner & Tanimoto, 1991; Becker et al., 2003; Gaboret et al., 2003; Conrad et al., 73 2007) are consistent with mantle flow in the direction of plate motion.”
On the relationship between azimuthal anisotropy from shear wave splitting and surface wave tomography (2012, background): “…misfit is comparable or somewhat larger than the best match between geodynamic models and shear wave splitting [e.g., Becker et al., 2006a; Conrad and Behn, 2010] and better than the match of geodynamic models to surface wave azimuthal anisotropy [e.g., Gaboret et al., 2003; Becker et al., 2003].”