Tuesday , May 17 2022

Where do the oceans come from? So far an important source was ignored


The research did not yet consider hydrogen in the core of the world.

Our cosmic house is one of the greatest mysteries. Where did the water come from in the world?

The answer to this question actually has a wider, cosmic meaning. Indicates whether water is common in stone planets of the distant universe.

A recent study by scientists from Arizona State University suggests that the Earth's water comes not only from asteroids, but also from the germinal nebulae of the solar system. This means that water can also be abundant in alien planets that have not been bombarded by asteroids.

Journal of Geophysical Research: A research paper published by the Journal of Planets.

Aqueous asteroids

Many researchers thought that water fell from the sky. It was part of the world's asteroids. For example, carbon asteroids may contain more than 20% water.

Such a scenario suggested the isotopic composition of the oceans. Heavy hydrogen deuterium (especially one more hydrogen), especially in the light hydrogen process.

Ch The author is like a blind spot in a professional community, ğ says writer-writer Steven Desch. "Scientists have measured the ratio of isotopes in the ocean and found that they correspond to the ratio in asteroids.

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Surprises from the depth

However, recent research has found that the isotopic composition of ocean water is not representative. Examples of hydrogen from the debris, especially the core and the soil body, contain much less heavy hydrogen.

In the same region, rare gases of helium and neon with an isotopic composition of surprising origin were found. They appear to come from the germinal gas-dust nebula that forms the direct sun.

The deep creatures of our planet led to another important finding. Although the core of the earth is predominantly iron and nickel, about 7% of its weight corresponds to light elements.

Among other things, hydrogen. During the formation of the earth, he was attached to the iron and fell with him to the center of the planet.

The water on earth seems to have a dual origin.

Photo gallery / 2nd

The water on earth seems to have a dual origin.

Source: NASA

Unread effects

Although hydrogen is only a part of the Earth's core, its sum is apparently enormous.

"Geochemical indications indicate that the nucleus of the Earth contains some hydrogen that corresponds to the various oceans.

Scientists add that the study has not yet taken into account how the iron-binding process affects the isotopic composition of the rest near the surface.

"When the hydrogen molecule breaks down, it is more readily bound to isotopic metals, so that the isotopic composition of the environment changes," the researchers explains.

At least every hundred molecules

Scientists from Arizona State University took this effect into account. They found the original isotopic composition of the earth's hydrogen, so they understood how much they contributed to their resources and resources.

The results of the study show that terrestrial hydrogen, and thus water – is a part of the germinal nebulae of the solar system, rather than asteroids.

Lead writer Jun Wu says, "For each molecule of terrestrial water, one or two suns come from the nebula."

Hydrogen "charging"

The world acquired sunflower hydrogen in a very early period of development. With hundreds of fierce collisions with the fetuses of other planets, the miles melt deeply to create deep ocean magma.

At present, the gases from the sunny nebula are packed in gravitationally. In addition to helium and neon and hydrogen.

The nebula contains less hydrogen than asteroids. But when it touched the magmatic ocean, the light iron was connected to the iron clusters. Heavy deuterium remained close to the surface.

The iron melted, finally fell to the middle of the body, and (mainly) formed the metal core. The isotope ratio with the absorbed hydrogen, which is different from the subsequent oceans on the surface.

Jupiter image obtained by the interplanetary investigation of Nuno Juno.

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Good news for life

Researchers from Arizona State University recall that planets in other planetary systems cannot have enough water-rich asteroids.

However, the findings of his studies show that water will not be missed by such a world. An insignificant amount of raw material – hydrogen – is derived directly from the germinal nebula.

. From our model, it is clear that the emergence of water will occur on a sufficient amount of stones beyond each other, Jun says Jun Wu. Ud The emergence of water is an inevitable consequence of the formation of sufficiently large stone planets outside the solar system. “

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