Vasil'chuk, Yurij K; Alekseev, S V; Arzhannikov, Sergey G; Alekseeva, L P; Budantseva, Nadine A; Chizhova, Julia N; Arzhannikova, Anastasia V; Vasil'chuk, Alla Constantinovna; Kozyreva, E A; Rybchenko, A A; Svetlakov, A A (2020): Oxygen and Hydrogen Isotope Compositions of Lithalsa Frozen Core: A Case Study from the Sentsa River Valley, East Sayan [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.919702
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Abstract:
Mineral permafrost mounds (lithalsas) have been studied in the Sentsa River valley (East Sayan Mountains, western Buryatia). This is the first detailed study of permafrost in the area based on analysis of cryostructures and distribution of stable isotopes in lithalsa intrusive-segregation ice. The lithalsas predominantly have reticulate or lenticular cryostructures and ice contents over 50-60 %. The lateral and vertical δ¹⁸O and δ²H patterns suggest cascade growth with the large lithalsa formed before the small one. Lithalsas can nucleate and grow during progressive lake shallowing. They feed mainly from ground water during freezing of wet frost-susceptible finegrained soil, or less often, from meteoric or lake water. Lithalsas grow quite rapidly, at tens of centimeters per year, and can reach more than 5 meters high in 50-100 years.
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Vasil'chuk, Yurij K; Alekseev, S V; Arzhannikov, Sergey G; Alekseeva, L P; Budantseva, Nadine A; Chizhova, Julia N; Arzhannikova, Anastasia V; Vasil'chuk, Alla Constantinovna; Kozyreva, E A; Rybchenko, A A; Svetlakov, A A (2015): Oxygen and Hydrogen Isotope Compositions of Lithalsa Frozen Core: A Case Study from the Sentsa River Valley, East Sayan. Earth's Cryosphere, 2(19), 46-58
Further details:
Arzhannikov, Sergey G; Ivanov, A V; Arzhannikova, Anastasia V; Demonterova, E I (2014): The Volcano Valley in East Sayan. SCIENCE First Hand, 37(1/03), 49-68
Vasil'chuk, Yurij K; Alexeev, Sergey; Arzhannikov, Sergey G; Alexeeva, Ludmila P; Budantseva, Nadine A; Chizhova, Julia N; Arzhannikova, Anastasia V; Vasil'chuk, Alla Constantinovna (2016): Lithalsas in the Sentsa River Valley, Eastern Sayan Mountains, Southern Russia. Permafrost and Periglacial Processes, 27(3), 285-296, https://doi.org/10.1002/ppp.1876
Vasil'chuk, Yurij K; Vasil'chuk, Jessica Yurevna; Alexeyev, S V; Budantseva, Nadine A; Alexeyeva, L P; Vasil'chuk, Alla Constantinovna; Kozyreva, Ye A; Svetlakov, A A (2019): The Cyclical Structure of the Isotopic Diagram of a Lithalsa and Its Radiocarbon Age, Sentsa River Valley, Eastern Sayan. Doklady Earth Sciences, 489(2), 1456-1460, https://doi.org/10.1134/S1028334X19120158
Coverage:
Median Latitude: 52.662952 * Median Longitude: 99.498472 * South-bound Latitude: 52.661389 * West-bound Longitude: 99.496389 * North-bound Latitude: 52.663889 * East-bound Longitude: 99.500833
Comment:
Data was submitted and proofread by Yurij K Vasil'chuk and Lyubov Bludushkina at the faculty of Geography, department of Geochemistry of Landscapes and Geography of Soils, Lomonosov Moscow State University.
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
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4 datasets
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Datasets listed in this bundled publication
- Vasil'chuk, YK; Alekseev, SV; Arzhannikov, SG et al. (2020): Lithology and cryostructure of lithalsas in the Sentsa River valley (East Sayan, Siberia). https://doi.org/10.1594/PANGAEA.919697
- Vasil'chuk, YK; Alekseev, SV; Arzhannikov, SG et al. (2020): ¹⁴C ages of organic matter from Sentsa River floodplain outcrop and a small lithalsa. https://doi.org/10.1594/PANGAEA.919698
- Vasil'chuk, YK; Alekseev, SV; Arzhannikov, SG et al. (2020): Oxygen (δ¹⁸O) and hydrogen (δ²H) isotope compositions of ice in the core of large lithalsa in Sentsa River valley (Siberia). https://doi.org/10.1594/PANGAEA.919700
- Vasil'chuk, YK; Alekseev, SV; Arzhannikov, SG et al. (2020): Oxygen (δ¹⁸O) and hydrogen (δ²H) isotope compositions of ice in the core of a small lithalsa in Sentsa River valley (Siberia). https://doi.org/10.1594/PANGAEA.919701