Possible origin of nitrogen in the Earth's atmosphere

The details on the origin of nitrogen, which exists so abundantly in the Earth's atmosphere, are missing. An attempt to give a possible answer to the question was interpreted to be the result of endothermic nuclear transmutation of carbon and oxygen atom pairs in carbonate lattice of mantle containing crust, ¹²C + ¹⁶O + 2e ^* +2ν↦2 ¹⁴N + ⁴He, with help of electropionic attraction effect (48% shrinkage) due to the excited electron capture and neutral pion catalysis. The excited electrons were generated by rapid fracture or sliding of carbonate crystals due to volcanic earthquake, and plenty of neutrinos were derived from the universe, mainly from the young sun. The formation of nitrogen would have continued for 1.3 billion years from 2.5 to 3.8 billion years ago in the Archean era, until the active volcanism or storm of neutrinos ceased. The possible nuclear transmutation rate of nitrogen atoms could be calculated as 2.3×10⁶ atom/s.