Coseismic variations of Li in groundwaters from station 27 of the Kultuk polygon

Authors

I.S. Chuvashova ^1,2, A.M. Ilyasova ¹

¹Institute of the Earth's Crust SB RAS, Irkutsk, Russia

²Irkutsk State University, Irkutsk, Russia

About the Authors

Chuvashova Irina Sergeevna,

candidate of geological and mineralogical sciences,

664003 Irkutsk, Lenin str., d. 3,

Irkutsk State University, Faculty of Geology,

Assistant Professor,

664033 Irkutsk, Lermontov str., d. 128,

Institute of the Earth's Crust SB RAS,

Senior Researcher,

tel.: (3952) 51–16–59,

email: chuvashova@crust.irk.ru.

Ilyasova Aigul Maratovna,

candidate of geological and mineralogical sciences,

664033 Irkutsk, Lermontov str., 128,

Institute of the Earth's Crust SB RAS,

Leading Engineer,

email: ila@crust.irk.ru.

Abstract. Monitoring results of the thermophilic trace element element Li and related macrocomponents Cl and S in groundwaters from station 27 in the Kultuk polygon. The dependence of their variations on earthquakes and aftershocks of the 2020–2022 Baikal-Khubsugul reactivation is established. From Na/Li geothermometry, ²³⁴U/²³⁸U activity ratio, and ²³⁴U activity, groundwater sources in a deep reservoir with a temperature as high as 100 °C or more under crust stretching and those with a temperature as low as 8 °C under crust compression are designated. Phases of stabilization, increase and decrease in groundwater temperature are deciphered in the course of the development of a complete seismogeodynamic cycle of compression and extension of the crust.

Keywords: groundwater, monitoring, Na/Li, earthquake, Baikal.

P. 106–123

References

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For citation

Chuvashova I.S., Ilyasova A.M. Coseismic variations of Li in groundwaters from station 27 of the Kultuk polygon [Electronic resource] / I.S. Chuvashova, A.M. Ilyasova // Geology and Environment.— 2023.— V. 3, No. 1.— P. 106–123. https://doi.org/10.26516/2541-9641.2023.1.106.

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