Researchers from the United States made a discovery about the origin of life on Earth.
New data show that the emergence of life took only a little time before it appeared 3.5 billion years ago.
The corresponding article was published in the Proceedings of the National Academy of Sciences.
Researchers from the United States came to the conclusion that the fossils from Western Australia is a confirmation of the fact that life existed more than 3.5 billion years ago. It arose almost immediately after the stabilization of the earth’s crust.
The researchers used mass spectrometry of secondary ions for the analysis of the ratio of atoms of carbon-12 and carbon-13 in samples of Australian rocks Dating back more than 3.5 billion years. This is the most sensitive of the available methods of analysis of surfaces, which is able to detect the presence of just one “need” of an atom in a billion atoms of the sample.
In one of the samples, the researchers found microfossils with a diameter of about 10 micrometers. Next to them was an increased ratio of carbon-13 to carbon-12. It happens if it remains a living organism.
In that part of the rock sample, where these microocellata was not, the ratio of different isotopes of carbon do not have such anomalies. From this the researchers conclude that they found fossils of small size is microspheres in the place where the microorganisms.
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