In September 2023, a global seismic mystery began to unfold. Every 90 seconds, the Earth pulsed with a strange, low-frequency ...

Only when all the crystals of the mineral point in the same direction in the model are the seismic waves accelerated—as can be observed in the D" layer at a depth of 2,700 kilometers.

A phase change in post-perovskite materials at the so-called D” discontinuity is also evidence for long-predicted slow, ...

Measurements of directional travel speed of seismic waves constrain flow in the upper mantle. Laboratory experiments suggest that high pressure can change the mantle's mineral alignment, leading ...

Earth's inner core may have paused and reversed its spin, a new study suggests.; Earthquakes and nuclear blasts can send seismic waves through the mysterious solid-iron core. Those waves hint that ...

Over a thousand miles from the surface, in Earth’s D” layer—right on the edge of the liquid metal outer core—there is a weird ...

Two Australian scientists argue in a new paper that within the Earth’s core, based on measurements of waves reverberating along the Earth’s diameter, is an innermost inner core, about 800 ...

Data captured from seismic waves caused by earthquakes has shed new light on the deepest parts of Earth’s inner core, according to seismologists from The Australian National University (ANU).

They have demonstrated why earthquake waves change abruptly at a depth of 2,700 kilometres at the so-called D‘’ layer. The reason for this is a type of solid rock that nevertheless flows. This mineral ...

Only when all the crystals of the mineral point in the same direction in the model are the seismic waves accelerated—as can be observed in the D" layer at a depth of 2,700 kilometers.