Stacked images combining over 5 years of long‐period Global Digital Seismograph Network
data reveal many phases associated with reflections and conversions from upper mantle …

The fine structure of the upper mantle discontinuities is investigated using observations of
converted waves on short‐period and broadband seismograms. Using a stacking technique …

We examine stacks of several seismic phases having different sensitivities to mantle
transition zone structure. When analyzed separately, underside P and S reflections (PdP …

The upper mantle seismic discontinuities provide important constraints on models of mantle
composition and dynamics. New observations of re-flected and converted phases from the …

SS and PP precursors are currently the only body wave data types that have significant
coverage in both oceanic and continental regions to study the existence and characteristics …

Using a high‐quality broadband seismic data set of precursors to the phase SS, we
investigate the structure of upper mantle discontinuities beneath the central Pacific including …

Until now, modelling of three-dimensional (3-D) velocity variations in the mantle and
topography of the transition zone discontinuities have been considered separately. Velocity …

Indications of lower mantle discontinuities have been debated for decades, but still little is
known about their properties, and their origins are enigmatic. In our study broad-band …

Long-period precursors to SS resulting from underside reflections off upper mantle
discontinuities (SdS where d is the discontinuity depth) can be used to map the global …

The reverberative interval of the seismogram, defined as the portion following the surface
wave train propagating along the minor arc and ending with the first body wave arrivals from …