The researchers discovered the accumulation of Bernyllium-10 radio isotopes deep below the Pacific surface.
The area of Bernlium-10 isotope detects in the seabed specimens. Image: Esri/Gebco/Garmin/Naturealvue
In a study published in Nature Communications, a group of international scientists speculated that the newly discovered radioactive area originated from changes in the flow or cosmic ray interacting with the earth atmosphere. This is about 10 million years, Yahoo On February 15, reported. Berllium-10 is created continuously by oxygen and nitrogen atoms on the top of the Earth’s rooftop that interacts with high energy protons, rushing through the universe at a speed nearly equal to the speed of light.
The research team hopes to find out as a milestone marking an independent time, allowing scientists to better understand how the planet shell evolved over millions of years, thereby adjusting the episodes. Geological data. Radioplasty isotopes are often used by the researcher to determine the archaeological and geologist.
Determining the radioactive isotopes have some remarkable limitations. While a sample such as wood or bone can be calculated accurately, the method is limited to the sample of no more than 50,000 years old, according to the co -author of the researcher is a Peters Dominik Koll. To find the older specimens, they need to use other isotopes like Beryllium-10. The semi -dumping cycle of this isotopes is 1.4 million years and decomposes into Boron, helping the scientist reverse time.
As described in the article, Koll and colleagues check the geological sample taken from the bottom of the Pacific at the depth of kilometers below the water. They consider the ratio of Boron isotopes by the accelerator spectrum method. The analysis results surprised them. They noticed about 10 million years ago, the amount of isotopes Boron-10 was nearly twice as much as expected.
The team suggested that the rearrangement of the large-scale ocean stream deposited more Bernyllium-10 in the Pacific Ocean. This abnormal area can also be the result of a powerful space event like the supernova explosion near the Earth 10 million years ago, making the universe radiation more temporary. A collision with an inter -star object can also make the Earth’s atmosphere more likely to be bombarded by the universe.
Koll and his colleagues are planning to analyze more samples in the future. If there is a similar finding in other oceans, it proves that the accumulation of abnormal radiation is a global phenomenon.