Tomographic filtering of high‐resolution mantle circulation models: Can seismic heterogeneity be explained by temperature alone?

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Reconciling dynamic and seismic models of Earth's lower mantle: The dominant role of thermal heterogeneity (2012, background): “…a large contributor to such discrepancies and, hence, comparisons between model predictions and tomography without application of such a resolution operator can be misleading (e.g. Mégnin et al., 1997; Davies and Bunge, 2001; Ritsema et al., 2007; Bull et al., 2009; Schuberth et al., 2009a).”
Temperature, lithosphere‐asthenosphere boundary, and heat flux beneath the Antarctic Plate inferred from seismic velocities (2015, background): “Previous studies have shown that temperature is the dominant influence on upper mantle (and even lower mantle) seismic velocity, with composition playing a lesser role [e.g., Jordan, 1979; Nolet and Zielhuis, 1994; Sobolev et al., 1996; Goes et al., 2000; Schuberth et al., 2009].”
GyPSuM: A joint tomographic model of mantle density and seismic wave speeds (2010, background): “Since density and S-wave velocity variations are highly sensitive to temperature deviations, it may be argued that the non-cratonic mantle shear-wave speeds and density variations are primarily temperature-driven [Schuberth et al. 2009; Simmons et al. 2009].”