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American scientists from the University of Rochester made discoveries in the field of planet Earth study. The specialists managed to calculate the moment when a solid nucleus began to form on Earth. According to the report's experts in the Nature Geoscience publication, it appeared that the nucleus of the Earth was 565 million years old
At the very center of our planet lies a solid ball made up of a iron and nickel alloy. Direct exploration is not possible because the solid core flows through a liquid mixture of hot rocks and metals. According to approximate data from scientists, the temperature of the Earth's core would reach 5,500 degrees Celsius. Liquid and solid nuclei create the magnetic field necessary for life on the planet. A few billion years ago, the core of the Earth was only rare. The cooling process affected the weakening of the field. If balance does not recover, life on Earth would cease. American geologists were able to calculate the age of a solid nucleus by exploring plagioclase minerals and clinopyroxene species. On samples formed between 500 and 600 million years ago, scientists have discovered traces of the weakened magnetic field influence. This means that at that time, a solid earth core had just formed.
Orest Horyansky
for "Uriadny Courier"
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