The Earth's magnetism has its origin in the core and its effect on the mantle, crust, and ionosphere, as it can be controlled and measured through space satellites. The core has a radius of about 3,500 km, in fact it is larger than the Planet Mars and represents 32% of the total mass of the Earth, the core is metallic, basically iron mixed with nickel, within this core that is liquid or molten, which would be like an extremely dense metallic paste.
Within that ocean of extremely dense metallic paste there is another core of about 2250 km that is floating 2250 km in diameter that is floating in the center of that ocean of molten metal that inner core is also metallic also mainly iron and that is where All types of heavy elements are concentrated, apart from iron and nickel there are also radioactive elements that have been falling, sinking into the Earth's crust then the mantle and descending towards the center of the Earth.
These radioactive elements are what decompose and generate at least part of the important heat that exists within our planet. It is similar to what a fission reactor does. This would be one of the sources of the origin of the internal heat of the Earth, the other source. is that the heat caused by the formation of the planet accumulates there, all that heat dissipates over time and the core cools little by little, although this cooling is not the cause of the movement of the magnetic North Pole, since that cooling is a process on a scale of hundreds of millions of years and as you can see this is a movement of days every day, currently the magnetic North Pole moves about 105 meters a day.
The cooling thing is important, it is important in the long term, because the magnetic field will end up turning off the Earth's protective shield, luckily that will be in hundreds of millions of years or maybe, in billions of years, Mars will be gone. It cooled earlier because it is smaller and that is why it does not have a protective magnetic shield, but this movement of the Pole has no relation to the cooling of the core, we do not know exactly.
There is a theory, but be careful, this theory is a toss-up because we really know very little about what happens under our feet. According to this theory, to a large extent what moves the Magnetic Pole is a tug of war between two large lobes of negative flux located At the limit of the earth's core, one would be under Canada and the other in Siberia, it would be a tug of war between them, it would be like the game of tug-of-war and the magnetic North Pole would be the red scarf in the center of the rope.
A few years ago it was known that there was a change in the circulation pattern of the flow under Canada which caused this flow to be weakened and has caused the flow over Siberia to now be strengthened and that is why the Pole is moving towards Siberia , this would be the theory that scientists are currently working with but I already say that it is taken a bit with tweezers, we need more data and more information to know what is happening.
This could be a warning of a reversal of the poles, currently no scientist dares to associate the issue of the reversal of the poles with this movement, they trust that it is simply a normal movement, after all, we have data for a short time time since 1831, which is a short time on a geological scale, perhaps these types of rapid movements are also normal as far as possible, perhaps there is a pattern that we do not know that causes the magnetic North Pole to move.
They do not dare to associate it with a reversal of the poles because that would be terribly catastrophic, that would be a great blackout, a brutal blackout, because a reversal of the poles, a change from the North Pole to the South Pole would mean that our protective magnetic field It would be gone, it would be destroyed, it would be totally reduced to almost nothing, it is known that the reversal of the poles occurs according to the official version every 200,000 to 300,000 years, I say the official version because it is We don't know what the pattern is either.
Scientists would have to be a little more modest, it is better to say “look we don't know”, “we have this data”, “but we don't know”, every time I read the pattern of the change of the magnetic poles it is every 200,000 to 300,000 years. I have doubts, because there is no real pattern, in fact 700,000 years have passed since the last inversion, and two inversions should have already occurred, two or three inversions and it has not happened, In fact it is estimated that there have been 183 pole reversals in the last 83 million years and the last one occurred 780,000 years ago, so the pattern of 200 to 300,000 years is not real, unfortunately there are still many mysteries on this planet in the one we live in, let's hope it doesn't touch us now.
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