Development of the Listvyanka, Buguldeyka, and Olkhon-Priolkhonye Monitoring Polygons of the Baikal: Prospecting Study of Trace Elements and U Isotopes in Waters from Rivers and Groundwaters

Authors

E.P. Chebykin^1,2, S.V. Rasskazov^1,3, A.M. Ilyasova¹, S.V. Snopkov^3,4, S.N. Kovalenko³

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

²Limnological Institute SB RAS, Irkutsk, Russia

³Irkutsk State University, Irkutsk, Russia

⁴Siberian School of Geosciences, Irkutsk National Research Technical University, Irkutsk, Russia

About the Authors

Chebykin Evgeny Pavlovich,

Candidate of Chemical Sciences,

664033 Irkutsk, Lermontov str., 128,

Institute of the Earth's Crust SB RAS,

664033 Irkutsk, Ulaanbaatarskaya str., 3,

Limnological Institute SB RAS,

Senior Researcher,

email: epcheb@yandex.ru.

Rasskazov Sergei Vasilievich,

doctor of geological and mineralogical sciences, professor,

664003 Irkutsk, Lenin str., 3,

Irkutsk State University, Faculty of Geology,

Head of the Department of Dynamic Geology,

664033 Irkutsk, Lermontov str., 128,

Institute of the Earth's Crust SB RAS,

Head of the Laboratory of Isotopy and Geochronology,

tel.: (3952) 51–16–59,

email: rassk@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.

Snopkov Sergey Viktorovich,

Candidate of Geological and Mineralogical Sciences, assistant professor,

664003 Irkutsk, Lenin str., 3,

Irkutsk State University, Faculty of Geology,

664074, Irkutsk, Kurchatov str., 3,

Siberian School of Geosciences, Irkutsk National Research Technical University,

Leading Researcher,

email: snopkov_serg@mail.ru.

Kovalenko Sergei Nikolaevich, candidate of geological and mineralogical sciences, 664003 Irkutsk, Lenin, str., 3, Irkutsk State University, Faculty of Geology, assistant professor, email: igpug@mail.ru.

Abstract. The results of prospecting studies of trace elements and activity ratio ²³⁴U/²³⁸U (АR4/8) in surface waters and groundwaters from the Listvyanka, Buguldeyka, and Olkhon-Priolkhonye polygons of integrated monitoring, organized since 2020, are presented. At the Listvyanka polygon, wide interval of АR4/8 from 1.67 to 2.5 is obtained for groundwater in the Bolshie Koty village, at the Buguldeyka and Olkhon-Priolkhonye polygons that are located in the zone of the Primorsky fault – an interval of AR4/8 from 1.25 to 2.70. These values is general characteristic of large active faults of the central Baikal Rift Zone. Water from the Buguldeyka River differs in terms of both trace element compositions and AR4/8 values from those of its tributary Kurtun due to location of these rivers basins in rocks of the exposed basement of the Siberian Platform and its sedimentary cover, including evaporate carbonate sediments. On the Olkhon island, determined is groundwater that differs in elemental composition from the deep Baikal water.

Keywords: groundwater, surface water, monitoring, earthquakes, Baikal.

P. 36–59

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For citation

Chebykin E.P. Comparative study of coseismic changes in thermophilic elements Si, Na, and Li in groundwaters from station 27 in the Kultuk polygon, Lake Baikal / E.P. Chebykin, S.V. Rasskazov, A.M. Ilyasova, S.V. Snopkov, S.N. Kovalenko // Geology and Environment : electronic scientific journal. – 2023.— V. 3, No. 2.— P. 36–59. https://doi.org/10.26516/2541-9641.2023.2.36.

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