Seismic images of Earth's interior reveal two massive anomalous zones at the base of the
mantle, above the core, where seismic waves travel slowly. The mantle materials that …

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 …

Detailed global plate motion models that provide a continuous description of plate
boundaries through time are an effective tool for exploring processes both at and below the …

Plate tectonics shapes Earth's surface, and is linked to motions within its deep interior,. Cold
oceanic lithosphere sinks into the mantle, and hot mantle plumes rise from the deep Earth …

Large low shear velocity provinces (LLSVPs), whose origin and dynamic implication remain
enigmatic, dominate the lowermost mantle. For decades, seismologists have created …

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 …

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) …

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 …

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 …

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 …