The Earth’s core is the central layer of our planet, and is mainly composed of iron and nickel. Its outer and inner parts stand out. The first liquid is the main cause of creating a magnetic field.
The second is exposed to extreme pressure and temperature (which reaches up to 6000 degrees Celsius), and is located about 5000 km from the surface. And everything shows that it is affected by a prominent structural modification.
The Earth is still an astonishing scientist. New discoveries
Researchers at the University of Southern California (USC) have found that central parts of the world are not as stable as they were thought to be. Interestingly, they came to these conclusions by chance. Their discoveries were published in the Nature Geoscience magazine.
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Originally, it was planned to bend the reason for the slow rotation of this structure. To this end, seismic waves from 121 earthquakes were analyzed in the South Atlantic region. One of the data sets recorded by stations in Alaska and Northern Canada attracted their special attention.
Pixabay.com The Earth’s core is changing. This discovery can have huge consequences
John Vidale, the main author of the work, explained that these results were clearly different from others, and sometimes “I realized that I was seeing evidence that the inner core was not persistent.” . As he admitted, information that first “confusing” him after improving reading resolution revealed additional activities in this layer.
American experts have found that structural changes occur at the most exterior surfaces of this structure. A potential factor involved in this is the interaction of the liquid extranuclear. It probably causes deformation and shifting, even at 1-2 km, at the location of friction of both elements.
The Earth’s core is changing. What does that mean?
According to Vidale, discoveries will “open the door” and learn about the dynamics of Earth’s depth. As he pointed out, this may give us a better understanding of the processes responsible for internal heat and the magnetic fields of the planet.
Additionally, as we read on the university’s California website, the arrangement shed new light on how internal core surface conversion affects rotation.
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In this connection, it is worth mentioning that it can accumulate for a long time, although it is only a few milliseconds of the difference of the day. And this is not important for the stability of the Earth’s geophysical rhythms.
There are also questions about the validity of the model, suggesting a much more stable structure for the internal test circle. Probably, deep processes are more dynamic than suspected. They can translate, among other things, seismic activity.
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