Strong heterogeneity at a variety of scale lengths has been imaged in the lowermost mantle
using different forward and inverse methods. Coherent patterns in differential travel times of …

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 …

Seismological studies indicate that the inner core of Earth is anisotropic for compressional
waves (P waves), and has low shear wave (S wave) velocity, and high seismic attenuation …

In contrast to the liquid outer core, the earth's inner core is mostly solid, and its composition
is more pure iron. Based on dynamic arguments related to the freezing process of the inner …

The days when the Earth's inner core (IC) was viewed as a homogeneous solid sphere
surrounded by the liquid outer core (OC) are now behind us. Due to a limited number of data …

Seismology has come a long way in providing insights into Earth's internal structure and
dynamics. Among many forward and inverse geophysical techniques developed, full …

The seismological exploration of the Earth's inner core has revealed unexpected and
puzzling structural complexities. Its elastic anisotropy is now well established, and has been …

We collect a global data set of PKIKP and PKiKP phases recorded by the Global Seismic
Network and many regional seismic arrays to study seismic structure in the top of the Earth's …

The discrimination between chemical and thermal heterogeneity in the Earth's mantle
remains one of the most important and challenging questions to be answered by …

The model of cylindrical anisotropy in the inner core (IC) states that seismic rays traveling
parallel to the Earth's rotational axis travel faster than those parallel to the equator. There …