Authigenic barite in paleothermo cirque deposits of the Yamal Peninsula

Authigenic mineral formation in permafrost environments represents a scientifically significant yet little understood field of cryolithology. This study provides the first comprehensive documentation and analysis of authigenic barite discovered in frozen sediments of thermocirques on the Yamal Peninsula, with a particular focus on its potential as a novel indicator of cryogenic processes. The research methodology combines advanced analytical techniques including high-resolution scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and comprehensive geochemical characterization of ice-ground systems. A key methodological innovation is the development and application of specialized polymer replica techniques that enable precise preservation of primary cryogenic textures and microstructures in frozen samples, overcoming the limitations of conventional sample preparation methods. The results obtained demonstrate that authigenic barite forms distinctive rosette-shaped micro-aggregates within ice-ground micro-pores, with the crystal morphology indicating in situ growth under cryogenic conditions. Detailed geochemical analysis reveals that barite formation is fundamentally controlled by freeze-induced solute redistribution processes, where specific ionic ratios (particularly elevated SO₄²⁻/Ca²⁺) and neutral pH conditions preferentially promote barium sulfate precipitation over calcium sulfates. These findings show authigenic barite as a sensitive paleoindicator of cryogenic processes including thermodenudation, segregation ice formation, and freeze-thaw solute concentration. The study provides crucial new insights into low-temperature geochemical processes operating in permafrost environments, with important implications for understanding cryosphere evolution under contemporary climate change scenarios.

1. Bazarova E.P., Kadebskaya O.I., Rubtsova M.N., Korotchenkova O.V., Kononov A.M. Cryogenic rapidcreekite from the Malaya Nizhneudinskaya Cave (Eastern Siberia). Kriosfera Zemli = Earth’s Cryosphere. 2023;27(3):3–14. (In Russ.). https://doi.org/10.15372/KZ20230301

2. Thomas H.R., Сleall P., Li Y.-C., Harris C., Kern-Luetschg M. Modelling of cryogenic processes in permafrost and seasonally frozen soils. Geotechnique. 2009;59(3):173–184. https://doi.org/10.1680/geot.2009.59.3.173

3. Fotiev S.M. Controversial problems of geocryology: a review of achievements. Kriosfera Zemli = Earth’s Cryosphere. 2020;24(3):3–17. (In Russ.). https://doi.org/10.21782/KZ1560-7496-2020-3(3-17)

4. Slagoda E.A., Novoselov A.A., Koroleva E.S., Kuznetsova A.O., Butakov V.I., TikhonravovaYa.V., Zazovskaya E.P. Traces of cryogenic processes in the Late Neopleistocene deposits of the Pur-Taz interfluve, Western Siberia. Kriosfera Zemli = Earth’s Cryosphere. 2022;26(1):21–35. (In Russ.). https://doi.org/10.15372/KZ20220103

5. Zak K., Onac B.P., Kadebskaya O.I., Filippi M., Dublyansky Y., Luetscher M. Cryogenic mineral formation in caves. In: A. Persoiu, S.-E. Lauritzen (eds.). Ice Caves. Pt 6. Cambridge: Elsevier Inc.; 2018. P. 123–162. https://doi.org/10.1016/B978-0-12-811739-2.00035-8

6. Зигерт Х.Г. Минералообразование в условиях вечной мерзлоты. В кн.: Строение и тепловой режим мерзлых пород. Новосибирск: Наука; 1981. C. 14–21.

7. Слагода Е.А. Криолитогенные отложения Приморской равнины моря Лаптевых: литология и микроморфология. Тюмень: Экспресс; 2002. 120 с.

8. Рогов В.В. Основы криогенеза. Новосибирск: ГЕО; 2009. 208 с.

9. Slagoda E.A., Krylov A.V., Popov K.A., Opokina O.L., Drozdov D.S., Rogov V.V., Kurchatova A.N., Orekhov P.T., Ermak A.A., Khodzher T.V., Tomberg I.V., Suslova M.Yu., Zhuchenko N.A., Abramov A.A. Cryolithological structure of the first terrace of Bely Island in the Kara Sea: microstructure and signs of cryolithogenesis (Part 2). Kriosfera Zemli = Earth’s Cryosphere. 2014;18(1):12–22. (In Russ.).

10. Kurchatova A.N., Rogov V.V. Authigenic carbonates in the Ice Complex deposits of the coastal lowlands of the Eastern Arctic. Kriosfera Zemli = Earth’s Cryosphere. 2013;18(3):60–69. (In Russ.).

11. Pismeniuk A.A., Semenov P.B., Tarasevich I.I., Leibman M.O., Babkin E.M., Nesterova N.B., Malyshev S.A., Streletskaya I.D., Shatrova E.V., Khomutov A.V. Research of quaternary sediments and ground ice in Central Yamal. Relief i chetvertichnye obrazovaniya Arktiki, Subarktiki i SeveroZapada Rossii = Relief and Quaternary Deposits of the Arctic, Subarctic and North-West Russia. 2021;(8):173–176. (In Russ.). https://doi.org/10.24412/2687-1092-2021-8-173-176

12. Leibman M.O., Khomutov A.V. Vaskiny Dachi research station in Central Yamal: 30 years of studies. Kriosfera Zemli = Earth’s Cryosphere. 2019;23(1):91–95. (In Russ.). https://doi.org/10.21782/KZ1560-7496-2019-1(91-95)

13. Babkina E.A., Khomutov A.V., Babkin E.M., Leibman M.O. Monitoring of thaw depth and permafrost temperature in the north of Yamal-Nenets Autonomous Okrug. Relief and Quaternary Formations of the Arctic, Subarctic and Northwest Russia. 2022;(9):20–28. (In Russ.). https://doi.org/10.24412/2687-1092-2022-9-20-28

14. Butakov V.I., Slagoda E.A., Zavatsky M.D., Ivanov V.I. Gas composition and microorganisms in ground ice of the Russian Arctic. Bulletin of the Tomsk Polytechnic University. Geo Assets Engineering. 2023;334(9):63–75. (In Russ.). https://doi.org/10.18799/24131830/2023/9/4084

15. Курчатова А.Н., Рогов В.В. Методы электронной микроскопии в геокриологии. Москва; Тюмень: МГУ им. М.В. Ломоносова, ТИУ; 2020. 134 с.

16. Брушков А.В. Засоленные многолетнемерзлые породы арктического побережья, их происхождение и свойства. Москва: Московский государственный университет им. М.В. Ломоносова; 1998. 324 с.

17. Trofimov V.T., Krasilova N.S. Saline frozen soils of Russian Arctic coast and their engineeringgeological specific. Bulletin of Moscow Society of Naturalists. Geological Series. 2017;92(4):49– 57. (In Russ.).

18. Killawee J.A., Fairchild I.J., Tison J.-L., Janssens L., Lorrain R. Segregation of solutes and gases in experimental freezing of dilute solutions: Implications for natural glacial systems. Geochimica et Cosmochimica Acta. 1998;62(23–24):3637–3655. https://doi.org/10.1016/S0016-7037(98)00268-3

19. Lein A.Yu., Leibman M.O., Savvichev A.S., Miller Yu.M., Pimenov N.V. Isotopic-biogeochemical features of underground tabular ice of the Yugorsky and Yamal peninsulas. Geokhimiya. 2003;(10):1084–1104. (In Russ.).