Upper mantle seismic wave velocity' Effects of realistic partial melt geometries

By W. Hammond, E. Humphreys. 2000

411 citations recorded by the source corpus.

View Paper: https://www.semanticscholar.org/paper/9018950b8944021b1589f4979a7d53989a9de15a

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In Geophysics

Citations in the corpus

Mineralogy and elasticity of the oceanic upper mantle: Origin of the low‐velocity zone (2005, background): “07 km s 1 [Hammond and Humphreys, 2000], with the uncertainty due primarily to unknown partial melt geometry.”
Subduction-triggered magmatic pulses: A new class of plumes? (2010, neutral): “Decompression melting could produce high reductions of Vp and Vs, up to 3% and 7% per percent melt, respectively (Hammond and Humpreys, 2000).”
Complex subduction and small-scale convection revealed by body-wave tomography of the western United States upper mantle (2010, background): “For example, up to 0.5% partial melt in the asthenosphere would reduce the required temperature variations by ~200 K (Hammond and Humphreys, 2000).”
Integrated geophysical‐petrological modeling of the lithosphere and sublithospheric upper mantle: Methodology and applications (2008, background): “Color dotted lines include the effect of free melt [Hammond and Humphreys, 2000].”
Geodynamics of the Yellowstone hotspot and mantle plume: Seismic and GPS imaging, kinematics, and mantle flow (2009, background): “However, partial melting can lower the compressional wave speed between 1.8% (Faul et al., 1994) and 3.6% (Hammond and Humphreys, 2000) per 1% partial melt.”
Geophysics of Chemical Heterogeneity in the Mantle (2012, background): “Considerations of equilibrium-melt microstructure indicate that 0.1% partial melt may lower the shear-wave velocity by as much as 1% (Hammond & Humphreys 2000, Hier-Majumder & Courtier 2011).”
Organized melt, seismic anisotropy, and plate boundary lubrication (2010, background): “Isotropic distribution of melt reduces seismic velocities by lowering the elastic moduli of the composite, and the magnitude of the decrease is sensitive to the geometry of the melt [e.g., Kendall, 1994; Blackman and Kendall, 1997; Takei, 1998, 2002;Hammond and Humphreys, 2000].”
The thermal structure of the lithosphere from shear wave velocities (2006, background): “Both theoretical studies of the macroscopic behaviour of two phase materials [3] and experimental studies of the influence of melt on Vs [8] suggest that such small melt fractions will have little effect on the shear modulus.”
Shear wave attenuation and dispersion in melt-bearing olivine polycrystals: 1. Specimen fabrication (2004, methodology): “Given the paucity of directly relevant experimental observations, such analyses of seismological data have relied heavily upon the predictions of theoretical models [Walsh, 1968, 1969; O’Connell and Budiansky, 1977; Mavko, 1980; Schmeling, 1985; Hammond and Humphreys, 2000a, 2000b].”