Ultra-low velocity zones (ULVZs) are localized small-scale patches with extreme physical
properties at the core-mantle boundary that often gather at the margins of Large Low …

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) …

Scattering of seismic waves can reveal subsurface structures but usually in a piecemeal way
focused on specific target areas. We used a manifold learning algorithm called “the …

The Earth's core–mantle boundary presents a dramatic change in materials, from silicate to
metal. While little is known about chemical interactions between them, a thin layer with a …

We use core reflected ScS waves sensitive to a broad region of the core-mantle boundary
beneath Hawaii to create the first high-resolution map of the Hawaiian ultralow-velocity zone …

Strong waveform complexities, including multipathing of the S diffracted phase and rapid
changes in differential ScS‐S times, are observed for multiple deep Fiji earthquakes …

We present a new data set of nearly 100 earthquakes which show clear evidence of the
Hawaiian ultra-low velocity zone (ULVZ) in the S core-diffracted phase (Sdiff), representing …

Sedimentary carbonates could be transported into Earth's mantle by plate subduction, but
the ultimate fate of these carbonates remains unclear. Zinc isotopes can allow the tracing of …

Seismic and mineralogical studies have suggested regions at Earth's core-mantle boundary
may be highly enriched in FeO, reported to exhibit metallic behavior at extreme pressure …

Hawaiian volcanoes belong to two geographically and geochemically distinct trends, the
Loa and Kea trends. The cause of this dichotomy is still strongly debated. One of the …