Since ancient times, gold has been a symbol of wealth and aristocratic temperament. It also has the property of maintaining and increasing value. It has won people's love. There may be many people who have doubts. Where does the gold on earth come from? Let's take a look at the small series below.
During the period of dramatic volatility in the formation of the planet, the earth is a melting mineral. Many different sizes of celestial bodies hit this group of molten minerals. These astronomical impacts could have hit the moon and caused billions of tons of liquefied gold to sink into the core. The vast majority of gold is concentrated in the depths of the earth because of their high density. When the early Earth's material is in a molten state, heavy matter declines, and the differentiation of light matter rises to form such a result.
Those gold have remained in the heart of the earth since then. According to the theory of earth formation, the precious metals on the earth have already sunk into the core, and it is impossible for mankind to extract a large amount of gold. So where does the large amount of gold and other precious metals that humans have extracted come from?
Human gold is from meteorite impact
Scientists have recently announced that all the gold on Earth comes from the gift of a huge "star rain" about 4 billion years ago.
The reason why most of the gold is concentrated in the depths of the earth is because of their high density, which leads to almost no gold in the near surface of the earth. Until about 200 million years have elapsed, a violent "starry rain" descends on the earth. . At that time, more than 200 billion tons of comet matter fell from the sky, violently bombarding the new earth, and there was gold among the things that poured down. Geologists have discovered that this giant comet rain supplements the Earth's surface with precious metals that are depleted due to early gravity differentiation.
Gold evidence from outer space
To verify this, three scientists, led by Matthias Wilbur of the University of Bristol, UK, analyzed the ancient stones of Greenland. Scientists have compared these collected rocks with rocks that represent modern mantle structures elsewhere on the planet. If there are significantly fewer precious metal elements in the former sample than in the latter sample, then it can be explained to some extent that meteorite impact is an important factor.
The researchers examined the tungsten isotopic composition of rocks, which, like gold and other heavy metals, deposited in the center of the Earth during the formation of the Earth's core. The test found that 1 gram of Greenland rock contains only one tenth of a gram of tungsten, although the number is small but hidden huge changes. The composition of the tungsten isotope clearly shows the substances added to the Earth's original material and foreign meteorites. According to calculations, the amount of gold that has landed on the earth through meteorite rains is strikingly consistent with the extraneous parts of the earth.
Scientists believe that if the comet hits the Earth about 4 billion years ago, humans may never see the gold that caused the rise and fall of civilization.
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