Hydrogeochemical responses of groundwater from station 184 in 2020–2021 on seismogenic deformations of the Baikal-Khubsugul reactivation

Abstract

A series of hydrogeochemical data obtained in 2020–2021 at station 184 of the Kultuk polygon, is interpreted in connection with the displaying of three processes during the Baikal-Khubsugul seismic reactivation: raise of reduced–oxidized fluids, extension–compression of microcracks, and deformation effects propagating from the sources of seismic shocks and resulted from self-oscillatory processes at the polygon area. The found temporal relationships between 234U/238U, 234U, U, Hg, Li variations and earthquakes can be used for prediction of future strong seismic events in the central part of the Baikal seismic zone.