Secrets hidden in the depths of the earth can be revealed in various ways. Here is the simplest one: scientists dig and drill the earth and take rock samples from its depths, but this way you can only get to a depth of no more than 8 kilometers, that is, without even reaching the mantle. Such drilling equipment has not yet been created with which it would be possible to withstand high pressure, not to mention the temperature of thousands of degrees Celsius.

How to determine what layers the interior of the Earth consists of?

Another way is to record shocks and shock waves inside the Earth during earthquakes using seismographs (instruments that capture such shocks and waves). Seismographs record waves moving in all directions through the bowels of our planet.

The shape of the seismic wave changes depending on whether it passed through the molten hot core of the Earth or through solid rock. The waveform allows scientists to judge which layers the Earth’s interior consists of.

Modeling the structure of our planet

Finally, scientists are trying to simulate the structure of our planet in laboratories. Specially made devices compress stones under high pressure while heating them to very high temperatures. At the same time, instruments record changes in the properties of the studied rocks.