Vasil'chuk, Yurij K; Vasil'chuk, Alla Constantinovna; Budantseva, Nadine A; Chizhova, Julia N; Papesch, W; Podborny, Yevgenij Ye (2020): ¹⁴C age, stable isotope composition and pollen analysis of massive ice, Bovanenkovo gas field, Central Yamal Peninsula [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.918458
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Abstract:
The origin of the massive ice is important for understanding the Quaternary history of the Yamal region and to predict the occurrence of massive ice, which is important for gas exploration and the development of infrastructure. Massive ice bodies occur in the Bovanenkovo gas field area within sediments such as layers, laccoliths, rods and lenses. Maximal thickness of the tabular ice is 28,5 m; mean thickness is about 8 m. Deposits of the third terrace underlying and overlapping the tabular ice had been formed from 25 ka BP to 20 ka BP, according to ¹⁴C dates. Oxygen-isotope values (δ¹⁸O) of massive ices are ranged from 12, 49‰ up to -22, 95‰. Deuterium (²H) values vary from -91, 7‰ up to -177, 1‰. Deuterium excess (dexc) changes from 3, 4 to 10, 6‰. Both homogenous and contrast distribution δ¹⁸O and (²H) vs. depths in massive ice bodies evidences the segregated and/or infiltrated-segregated manner of ice formation. Pollen, spores and algae spectra from ice are similar to pollen characteristics of modern lacustrine and coastal floodplain sediments in the area. The ingression of cold seawaters on a coastal flood plain caused freezing and ice segregation, with the formation of extensive ice layers under the large but shallow lakes. As a result, syngenetic and genetically heterogeneous ice, such as: segregated, infiltrated-segregated, lake bottom congelation ice etc. was formed.
Related to:
Vasil'chuk, Yurij K; Vasil'chuk, Alla Constantinovna; Budantseva, Nadine A; Chizhova, Julia N; Papesch, W; Podborny, Yevgenij Ye (2014): 14C age, stable isotope composition and pollen analysis of massive ice, Bovanenkovo gas field, CentraL Yamal Peninsula. Geography, Environment, Sustainability, 7(2), 49-70, https://doi.org/10.24057/2071-9388-2014-7-2-49-70
Coverage:
Median Latitude: 70.362697 * Median Longitude: 68.387342 * South-bound Latitude: 70.345647 * West-bound Longitude: 68.337152 * North-bound Latitude: 70.387790 * East-bound Longitude: 68.416066
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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Datasets listed in this bundled publication
- Vasil'chuk, YK; Vasil'chuk, AC; Budantseva, NA et al. (2020): δ¹⁸O, δ²H and ²H excess in samples from the third terrace of the Seyaha River and the Bovanenkovo Gas field area. https://doi.org/10.1594/PANGAEA.918450
- Vasil'chuk, YK; Vasil'chuk, AC; Budantseva, NA et al. (2020): Radiocarbon dates of organic material from sediments in the third terrace of the Seyaha River, Bovanenkovo. https://doi.org/10.1594/PANGAEA.918434