Compositional heterogeneity in the mantle transition zone
Earth's mantle transition zone (MTZ) is characterized by several sharp increases in seismic
wave speed between~ 300 km and~ 850 km depth. These seismic discontinuities are …
wave speed between~ 300 km and~ 850 km depth. These seismic discontinuities are …
A relatively dry mantle transition zone revealed by geomagnetic diurnal variations
The distribution of water within the mantle transition zone (MTZ) has important implications
for the material circulation and partial melting of the mantle. Although solubility of hydrogen …
for the material circulation and partial melting of the mantle. Although solubility of hydrogen …
The evolution of mantle plumes in East Africa
Global tomography models show a large low‐velocity anomaly extending from the core‐
mantle boundary (CMB) beneath South Africa to the upper mantle in East Africa. Although it …
mantle boundary (CMB) beneath South Africa to the upper mantle in East Africa. Although it …
On the measurement of Sdiff splitting caused by lowermost mantle anisotropy
Seismic anisotropy has been detected at many depths of the Earth, including its upper
layers, the lowermost mantle and the inner core. While upper mantle seismic anisotropy is …
layers, the lowermost mantle and the inner core. While upper mantle seismic anisotropy is …
Constraining deep mantle anisotropy with shear wave splitting measurements: Challenges and new measurement strategies
Determinations of seismic anisotropy, or the dependence of seismic wave velocities on the
polarization or propagation direction of the wave, can allow for inferences on the style of …
polarization or propagation direction of the wave, can allow for inferences on the style of …
Sensitivity of SK (K) S and ScS phases to heterogeneous anisotropy in the lowermost mantle from global wavefield simulations
Observations of seismic anisotropy at the base of the mantle are abundant. Given recent
progress in understanding how deformation relates to anisotropy in lowermost mantle …
progress in understanding how deformation relates to anisotropy in lowermost mantle …
[HTML][HTML] Elastic properties of Fe-bearing Akimotoite at mantle conditions: Implications for composition and temperature in lower mantle transition zone
The pyrolite model, which can reproduce the upper-mantle seismic velocity and density
profiles, was suggested to have significantly lower velocities and density than seismic …
profiles, was suggested to have significantly lower velocities and density than seismic …
Radial anisotropy in East Asia from multimode surface wave tomography
M Witek, SJ Chang, DY Lim, S Ning… - Journal of Geophysical …, 2021 - Wiley Online Library
We present a model of radial anisotropy in the crust and upper mantle of East Asia from a
combination of new group velocity measurements and previously published surface wave …
combination of new group velocity measurements and previously published surface wave …
On the origin of radial anisotropy near subducted slabs in the midmantle
Recent seismic studies indicate the presence of seismic anisotropy near subducted slabs in
the transition zone and uppermost lower mantle (mid‐mantle). In this study, we investigate …
the transition zone and uppermost lower mantle (mid‐mantle). In this study, we investigate …
The Water-Fe-Pressure dependent single-crystal elastic properties of wadsleyite: Implications for the seismic anisotropy in the upper Mantle Transition Zone
Recent seismic studies suggested an anisotropic Mantle Transition Zone (MTZ) in areas
adjacent to subducted slabs. Wadsleyite is the main anisotropy contributor in the upper MTZ …
adjacent to subducted slabs. Wadsleyite is the main anisotropy contributor in the upper MTZ …