Does the Earth’s inner core change shape? To understand

As we know, the world has been transformations for billions of years until it became a suitable environment. An example of this is the movement and other processes that contain the core of the planet; A feature that affects the position of the continents. This movement never ends However, some evidence shows that the world’s core can also change the shape.

According to a study published in Nature Geoscience of USC Dornsife scientists at the University of Southern California, Data showing changes in an area near the world’s inner core. Since the theme has been discussed by experts for a long time, even these changes are not a total surprise for the science community.

Hundreds of studies are trying to better understand the internal processes of the world, and recent research follows the same way. Initially, the researchers aimed to match the slowdown of the trainee kernel. However, the study revealed something unexpected: the data showed that there was a structural change in an area near the inner core of the planet.

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Although science has progressed significantly in understanding the processes of the world, the inner core still has many mystery about its dynamics. Scientists have already created some hypotheses about the evolution of this region, but still do not know exactly how this process took place over time. Therefore, the new work can contribute to a better understanding of the internal structure of the planet.

Since there is no technology that has the ability to drill the world’s core, scientists use seismic data to examine the interior. But how is this?

Earthquakes produce vibrations that spread all over the planet and interact with different inner layers. While analyzing how these seismic waves behave, researchers can model the structure of the world and map their depths.

“What we’ve learned is evidence that the surface near the Earth’s inner core has undergone a structural change … While analyzing decades of seismograms, a number of seismic wave data stood out with curiosity. Looking at the evidence that the inner core was not intact,” he said.

What is the inner core?

The world consists of four main layers: shell, cloak, outer core and inner core. During its formation, about 4.6 billion years ago, a planetary differentiation process in which more intense materials such as planets, iron and nickel sank to form the nucleus, the lighter, like silicates, shells and cloaks.

The inner core is the deepest layer in the world with temperatures above 4,000 degrees Celsius and excessive pressure.. Despite these excessive conditions, it remains intact. This region, which is mainly composed with iron and nickel, is fundamental for the stability of the planet.

https://www.youtube.com/watch?v=exivgeepq6c

The interaction between the inner and outer core plays an important role in terrestrial geodynamics as it affects the magnetic field of the world. How about this? The movement of the outer nucleus produces electrical currents responsible for geodynamo nutrition, an important mechanism for the care of the planet’s magnetic field.

“The inner core of the world is like a planet on another planet: approximately 5,150 kilometers below our feet and is still expected to be completely discovered. The modern global earthquake serves as an inverse telescope that allows you to investigate this deeper layer in the world. ”

Change in the form of inner core

In order to improve the model of the new study, researchers analyzed seismic waves produced by earthquakes and reflected in the deeper layers of the Earth. In total, Between 1991 and 2024, the data obtained from 121 earthquakes in 42 places near the Sandwich Do Sul islands in Antarctica were used.

These data allowed a more detailed research about the inner core, which was considered a solid iron sphere until then. However, it suggests that the work structure may not be completely robust.

The results show differences in seismic waves by reaching the boundary between internal and external nuclei, proposing possible variations in the form of inner core. The data show that it can offer a viscous feature that will affect the structure and displacement of the surface.

In addition to changing the format, they also noticed a change in the return rate of the inner core. Researchers still do not fully know the origin of these variations, but they theory that they may be small depression and heights in the region.

“It’s hard to be sure, but there will be small depression and elevations on the inner core border in response to the strong flow of the outer core. It is possible that changes are completely in the inner core, but this is less likely. therefore it can be very soft. “

This change is probably due to the interaction between the nuclei that the external affects the inner region. Scientists still need to analyze these data in deeply, but The results can contribute to the broader understanding of relevant processes such as the magnetic field of the Earth.

The internal processes of the world are far from being fully understood, but the latest studies show that the world’s core may be exposed to transformations that affect the time on the planet. Do you want to know more? Understand how changes in the world’s core can increase the duration of the days. Until next time!