Seismic observations provide strong evidence that Earth's inner core is anisotropic, with
larger velocity in the polar than in the equatorial direction. The top 60–80 km 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 …

4.1 Introduction 51 4.2 Elastic constants 52 4.3 Isothermal versus adiabatic elastic constants
55 4.4 Experimental techniques 57 4.5 Some general trends in elasticity: Birch's law 59 4.6 …

Hemispherical asymmetry is a prominent feature of Earth's inner core, but how this
asymmetry relates to core growth is unknown. Based on multiple-scattering modeling of …

Seismic waves have long been known to attenuate at a rate greater than that predicted by
geometric spreading of their wave fronts. Knopoff (1964) pointed out more than four decades …

Probing the Earth's center is critical for understanding planetary formation and evolution.
However, geophysical inferences have been challenging due to the lack of seismological …

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 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 …

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 …

Broadband velocity waveforms of PKIKP in the distance range 150–180° are inverted for a
model of inner core attenuation due to forward scattering by a three‐dimensional …