Friday, February 3, 2023

Earth’s core stalled and may reverse

Earth core It is a hot sphere the size of Pluto about 5 thousand kilometers from the surface of the earth and is essentially made of Hierro, A study published this Monday, January 23, shows stopped walking and may even be doing it the other way, with effects that will affect the length of days,

What is happening and when did the Earth’s core close?

According to a study published in the journal nature geology, It is believed that rotation inner core gap Tierra The dynamics and gravitational coupling with respect to the mantle is due to Summary And this Manto Planet’s Analyzing these dynamics through earthquakes, it was found that inner core Recently closed.

“Here we analyze repeated seismic waves from the early 1990s and show that all tracks that previously showed significant temporal changes show little change over the past decade. This suggests a globally consistent pattern.” that the rotation of the inner core has recently stopped.”

nature geology

the precise mechanism of rotation of the earth’s core It is difficult to understand because no one has been able to go that far. based on an analysis of what is known seismic waves Cause earthquakes when they pass through the center of the planet.

By analyzing seismic wave data 200 earthquakes In the South Sandwich Islands over the past six decades, Xiaodong song why yi yang, from Peking University, concluded that the rotation of Summary “It took off around 2009 and since then it’s been a bit slow Earth crust And then turn in the opposite direction.

  • The earthquakes occurred in pairs and produced similar waves, but when they were caught at stations near Alaska North PoleIts waves are slightly out of step if, while passing through the nucleus, it spins rapidly. cortex,

last rotation change, from the one before 2009happened in the early years 1970, and the next one will be in the middle of the year 2040According to Chinese scientists, the circle is completing.

What will be the effect of this unusual event?

According to experts, this movement will be more or less in line with change in day length minute variation in exact time that Tierra A rotation around its axis is needed to effect this, they add.

“The core anomaly is now one-thousandth of a second smaller than it was in 1970,” he said. xiadong song At the same time he assured that these changes can affect sea ​​level and have the ability to influence global temperature Planet’s

To date, there are few indications about the effect of the rotation of earth core on the surface of the earth. But both authors are convinced that there are physical connections between all the layers that make up the blue planet.

Nation World News Desk
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