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- W3024734738 endingPage "105786" @default.
- W3024734738 startingPage "105786" @default.
- W3024734738 abstract "Abstract The important role of radioactivity in the conversion of primary hydro- and atmosphere is substantiated considering the decay of 40 K isotope in seawater. By now, the total energy resulting from the decay of 40 K in the ocean amounts to 6.3 × 1026 J. The calculations show that the concentration of oxygen formed over the last 3.8 Ga is approximately 8 × 1017 kg, i.e., it is of the same order of magnitude as the content of oxygen in the modern atmosphere. The ocean was an intermediate reservoir in which oxygen was formed and which was purified from toxic components. The radiation provides the threshold concentrations of oxygen (Urey, Pasteur, and Berkner-Marshall points) important for the development of oxygen-breathing life. The radical and ionic products of water radiolysis induced chemical transformations of the compounds dissolved in the ocean. The calculations show that their total concentration over a period of 3.8 Ga was approximately 0.3 mol L−1. Seawater radiolysis resulted in water purification, saturation with oxygen, and formation of simple organic molecules." @default.
- W3024734738 created "2020-05-21" @default.
- W3024734738 creator A5088185678 @default.
- W3024734738 date "2020-08-01" @default.
- W3024734738 modified "2023-09-24" @default.
- W3024734738 title "Natural radioactivity and formation of oxygen in Earth's atmosphere: Decay of radioactive 40K and radiolysis of ocean water" @default.
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- W3024734738 doi "https://doi.org/10.1016/j.precamres.2020.105786" @default.
- W3024734738 hasPublicationYear "2020" @default.
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