LENR- based nucleosynthesis in the Earth's crust

A continuation of the demonstration that the nuclides existing on Earth arose as a result of LENR processes, which involve interactions between two identical, closely spaced isotopes considered as bound oscillators. This situation arises during sudden and strong compression of a gas by circulating light, causing the gas atoms to become densely packed. The exchange of energy between the bound oscillators creates an instability, leading to LENR with nucleon exchange between nuclei ( LENREN ). It has been shown that such reactions, in particular, produce isotopes that are unable to undergo further reactions and gradually accumulate over time. The proportion of such isotopes in the Earth's crust is approximately 90%, although their abundance does not exceed a few percent. However, LENREN reactions cannot occur with isotopes whose mass number A is greater than 98. It is shown that all isotopes can be divided into 3 groups with mass numbers A 1, A 2, A 3, where 1