Global seismographic networks (GSNs) emerged during the late nineteenth and early
twentieth centuries, facilitated by seminal international developments in theory, technology …

Few areas of geophysics are today progressing as rapidly as basic geomagnetism, which
seeks to understand the origin of the Earth's magnetism. Data about the present …

Differential rotation of Earth's inner core relative to the mantle is thought to occur under the
effects of the geodynamo on core dynamics and gravitational core–mantle coupling. This …

In this section the contribution of CPO to seismic anisotropy in the deep Earth with cases of
olivine and the role of melt is illustrated. The CPO in rocks of upper-mantle origin is now well …

Earth's inner core (IC) is less dense than pure iron, indicating the existence of light elements
within it. Silicon, sulfur, carbon, oxygen and hydrogen have been suggested to be the …

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 …

Receiver functions are a powerful tool to isolate and interpret receiver-side structure effects
in teleseismic seismic records. They are easily constructed by deconvolving one component …

Identification of repeating earthquakes (repeaters) usually depends on waveform similarity
expressed as the corresponding cross‐correlation coefficient (CC) above a prescribed …

Observations of the change in Earth's magnetic field—the secular variation—provide
information about the motion of liquid metal within the core that is responsible for the …

The differential axial rotation of the solid inner core (IC) is suggested by seismic
observations and expected from core dynamics models. A rotation of the IC by an angle α …