The most parsimonious ultralow‐velocity zone distribution from highly anomalous SPdKS waveforms
The locations of ultralow‐velocity zones (ULVZs) at the core‐mantle boundary (CMB) have
been linked to a variety of features including hot spot volcanoes and large low‐velocity …
been linked to a variety of features including hot spot volcanoes and large low‐velocity …
Heterogeneous mantle effects on the behaviour of SmKS waves and outermost core imaging
Seismic traveltime anomalies of waves that traverse the uppermost 100–200 km of the outer
core have been interpreted as evidence of reduced seismic velocities (relative to radial …
core have been interpreted as evidence of reduced seismic velocities (relative to radial …
Deformation in the lowermost mantle beneath Australia from observations and models of seismic anisotropy
Observations of seismic anisotropy near the core‐mantle boundary may yield constraints on
patterns of lowermost mantle flow. We examine seismic anisotropy in the lowermost mantle …
patterns of lowermost mantle flow. We examine seismic anisotropy in the lowermost mantle …
Investigating ultra‐low velocity zones as sources of PKP scattering beneath North America and the western Pacific Ocean: Potential links to subducted oceanic crust
Seismic energy arriving before the compressional (P) wave passing through the core (PKP),
called PKP precursors, have been detected for decades, but the origin of those arrivals is …
called PKP precursors, have been detected for decades, but the origin of those arrivals is …
Seismic and mineral physics constraints on the D ″layer
JM Jackson, C Thomas - Mantle convection and surface …, 2021 - Wiley Online Library
We present a synthesis of results from seismic and mineral physics studies of the D ″layer
to improve constraints on Earth's lowermost mantle. We focus on structures of two length …
to improve constraints on Earth's lowermost mantle. We focus on structures of two length …
Major disruption of D ″beneath Alaska
D ″represents one of the most dramatic thermal and compositional layers within our planet.
In particular, global tomographic models display relatively fast patches at the base of the …
In particular, global tomographic models display relatively fast patches at the base of the …
Melting at the edge of a slab in the deepest mantle
MS Thorne, N Takeuchi… - Geophysical Research …, 2019 - Wiley Online Library
We analyzed new recordings of SPdKS seismic waveforms from a global set of broadband
seismograms and horizontal tiltmeters from the Hi‐net array in Japan from 26 earthquakes in …
seismograms and horizontal tiltmeters from the Hi‐net array in Japan from 26 earthquakes in …
Lateral heterogeneity imaged by small‐aperture ScS retrieval from the ambient seismic field
Interpreting core‐related body wave traveltimes is challenging for seismologists because
Earth's heterogeneities are averaged over thousands of kilometers and the sparsity of …
Earth's heterogeneities are averaged over thousands of kilometers and the sparsity of …
Quantification of small-scale heterogeneity at the core–mantle boundary using sample entropy of SKS and SPdKS synthetic waveforms
Qualitative and quantitative analysis of seismic waveforms sensitive to the core–mantle
boundary (CMB) region reveal the presence of ultralow-velocity zones (ULVZs) that have a …
boundary (CMB) region reveal the presence of ultralow-velocity zones (ULVZs) that have a …
Imaging paleoslabs in the D ″layer beneath Central America and the Caribbean using seismic waveform inversion
D ″(Dee double prime), the lowermost layer of the Earth's mantle, is the thermal boundary
layer (TBL) of mantle convection immediately above the Earth's liquid outer core. As the …
layer (TBL) of mantle convection immediately above the Earth's liquid outer core. As the …