Anisotropy in the deep Earth
B Romanowicz, HR Wenk - Physics of the Earth and Planetary Interiors, 2017 - Elsevier
Seismic anisotropy has been found in many regions of the Earth's interior. Its presence in the
Earth's crust has been known since the 19th century, and is due in part to the alignment of …
Earth's crust has been known since the 19th century, and is due in part to the alignment of …
Advances in mapping lowermost mantle convective flow with seismic anisotropy observations
Convective flow in the deep mantle controls Earth's dynamic evolution, influences plate
tectonics, and has shaped Earth's current surface features. Present and past convection …
tectonics, and has shaped Earth's current surface features. Present and past convection …
Ultralow velocity zone and deep mantle flow beneath the Himalayas linked to subducted slab
The origins of ultralow velocity zones, small-scale structures with extremely low seismic
velocities found near the core–mantle boundary, remain poorly understood. One hypothesis …
velocities found near the core–mantle boundary, remain poorly understood. One hypothesis …
AxiSEM: broadband 3-D seismic wavefields in axisymmetric media
We present a methodology to compute 3-D global seismic wavefields for realistic
earthquake sources in visco-elastic anisotropic media, covering applications across the …
earthquake sources in visco-elastic anisotropic media, covering applications across the …
Morphology of seismically slow lower-mantle structures
Large low shear velocity provinces (LLSVPs), whose origin and dynamic implication remain
enigmatic, dominate the lowermost mantle. For decades, seismologists have created …
enigmatic, dominate the lowermost mantle. For decades, seismologists have created …
Global compilation of deep mantle anisotropy observations and possible correlation with low velocity provinces
We compile and make publicly available a global digital database of body wave
observations of seismic anisotropy in the D′′ layer, grouped using the method used to …
observations of seismic anisotropy in the D′′ layer, grouped using the method used to …
Lowermost mantle structure beneath the central Pacific Ocean: Ultralow velocity zones and seismic anisotropy
Ultralow velocity zones (ULVZs) and seismic anisotropy are both commonly detected in the
lowermost mantle at the edges of the two antipodal large low velocity provinces (LLVPs) …
lowermost mantle at the edges of the two antipodal large low velocity provinces (LLVPs) …
[HTML][HTML] The stability of hydrous silicates in Earth's lower mantle: Experimental constraints from the systems MgO–SiO2–H2O and MgO–Al2O3–SiO2–H2O
We performed laser-heated diamond anvil cell experiments on bulk compositions in the
systems MgO–SiO 2–H 2 O (MSH) and MgO–Al 2 O 3–SiO 2–H 2 O (MASH) that constrain …
systems MgO–SiO 2–H 2 O (MSH) and MgO–Al 2 O 3–SiO 2–H 2 O (MASH) that constrain …
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 …
Observations of mantle seismic anisotropy using array techniques: Shear‐wave splitting of beamformed SmKS phases
Shear‐wave splitting measurements are commonly used to resolve seismic anisotropy in
both the upper and lowermost mantle. Typically, such techniques are applied to SmKS …
both the upper and lowermost mantle. Typically, such techniques are applied to SmKS …