Numerical Physicochemical Modeling of the Geochemical Behavior of Uranium and Thorium in Radon Waters of Southern Siberia; Aquatic Geochemistry; Vol. 31

Numerical Physicochemical Modeling of the Geochemical Behavior of Uranium and Thorium in Radon Waters of Southern Siberia; Aquatic Geochemistry; Vol. 31

Bibliographic Details
Parent link:Aquatic Geochemistry.— .— New York: Springer Nature
Vol. 31.— 2026.— Article number 6, 14 p.
Corporate Author: Национальный исследовательский Томский политехнический университет Инженерная школа природных ресурсов Отделение геологии
Other Authors: Nikitenkov A. N. Aleksey Nikolaevich, Novikov D. A. Dmitry Anatoljevich, Korneeva T. V. Tatjyana Vladimirovna, Dultsev F. F. Fedor Fedorovich
Summary:Title screen
The first results obtained by the numerical physicochemical modeling of uranium and thorium behavior in the radon-rich waters of southern Siberia are presented. The studied waters are characterized by a wide variation of geochemical parameters (pH varies from 5.9 to 10.1; Eh from − 500 to + 285 mV), have diverse chemical composition, with dominating HCO3 Mg–Ca, HCO3 Na–Ca and Cl–SO4 –HCO3 Na, SO4–HCO3 Na–Mg–Ca types, with TDS value varying from 0.2 to 2.6 g/dm3 and silicon content 0.52–32.90 mg/dm3. The possibility for uranium minerals to be formed from the radioactive waters of southern Siberia has been established: In particular, uraninite and thorianite can be most actively precipitated within rather broad range of redox conditions, while uranium black is to occur less frequently. The possibility for thorium minerals to occur in trace amounts is also determined, with thorianite ThO2 as the most probable one. At pH values around 5, the formation of thorium sulfate Th(SO4)2 is also possible. In an acidic, strongly reducing environment with Eh < − 300 mV, trace amounts of ThS2 and Th2S3 may be deposited
AM_Agreement
Language:English
Published: 2026
Subjects:
труды учёных ТПУ
электронный ресурс
Radon-rich waters
Uranium
Thorium
Migrating species
Interaction in water–rock system
Numerical physicochemical modeling
West Siberia
Online Access:https://doi.org/10.1007/s10498-025-09440-3
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=688497

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