Isotopes of hydrogen and oxygen in nitrogen hot springs of Baikal Rift Zone in terms of interaction in the water-rock system

The negative correlation between values δD and δ¹⁸O and concentrations of dissolved silicon in nitrogen hot springs is ascertained, which attests to the directed alteration of their hydroisotopic composition towards being depleted in heavy isotopes during interaction in the water-rock system. This fact can be allowed for the cases of the lighter isotopic composition of the hot springs of meteogenic origin relative to that of local atmospheric precipitation. The shifts in points of isotopic composition of hot springs from the global meteoric water line can be caused by alterations in either oxygen or hydrogen composition.