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Budantseva, Nadine A; Maslakov, Alexey A; Vasil'chuk, Yurij K; Baranskaya, A V; Belova, N V; Vasil'chuk, Alla Constantinovna; Romanenko, Fedor A (2020): Winter air temperature in the early and middle Holocene on the eastern coast of Daurkin Peninsula, Chukotka, reconstructed from stable isotopes of ice wedges. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.919660 (DOI registration in progress)

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Abstract:
The object of research is the Holocene massive ice veins on the Eastern coast of the Daurkin Peninsula, the easternmost part of the Chukotka. Peat bogs with ice veins occur on the surface of marine terraces (near Uelen and Lorino settlements) and on flood plain of the Koolen' Lake; the thickness of peat varies from 0.7 to 2.5 m. Radiocarbon dating of the peat enclosing the investigated ice veins near Uelen and Lorino indicated that the beginning of peat accumulation began at the end of Late Pleistocene - early Holocene, about 11 cal ka BP. On the flood plain of the Koolen' Lake peat bogs began to accumulate in the middle Holocene, i.e. around 6 cal ka BP. At the initial stage of peat bogs formation the rate of peat accumulation was high and could reach 1 cm/10 years. Ice veins occur at a depth of 0.5-1 m, and their lower parts are located in the underlying peat sandy loams and loams. In the upper levels of the peat bogs, narrow present-day ice veins are found, which are sometimes embedded in the upper parts of Holocene veins. A clear sign of syngenetic growth of veins is the upward bending of the layers of the host peat at the lateral contacts with the veins. The main source of water for the formation of ice veins is snow, as evidenced by the ratio of stable isotopes of oxygen and hydrogen and the values of deuterium excesses in the ice. A slight admixture of saline water (probably from a seasonally thawed layer) was noted in the veins near the Lorino settlement. Reconstructions of winter air paleotemperatures, performed on the basis of data of isotope-oxygen composition of ice from the veins, did show that at the period between 11 and 6 cal Ka BP, the mean winter air temperature on the Daurkin Peninsula was by 2-5 °C lower than today, but the air temperature of the coldest month (January or February) was still lower (by 4-8 °C) than today. The noticeable trend of increase of stable isotope values in the ice veins from early Holocene to the present time is indicative of a steady positive trend of mean winter air temperatures in the Holocene.
Keyword(s):
Chukotka; deuterium excess; Holocene; Hydrogen isotopes; oxygen isotopes; paleotemperature reconstruction; Peatland; radiocarbon age; winter air temperature
Supplement to:
Budantseva, Nadine A; Maslakov, Alexey A; Vasil'chuk, Yurij K; Baranskaya, A V; Belova, N V; Vasil'chuk, Alla Constantinovna; Romanenko, Fedor A (2020): Winter air temperature in the early and middle Holocene on the eastern coast of Daurkin Peninsula, Chukotka, reconstructed from stable isotopes of ice wedges [In Russian]. Ice and Snow, 60(2), 251-262, https://doi.org/10.31857/S2076673420020038
Related to:
Monuments, memorials of history and culture of the North-East of Russia (Magadan region and Chukotka) (1994). Ed. N.N. Dikov. Magadan: Magadan Publishing House, 1994: 256 p. [In Russian] .
Kiselev, N K; Knyazev, A V; Savinetskiy, A B; Khasanov, B F (1996): Uelen middle Holocene peatland on the extreme northeast of the Chukotka Peninsula . Izvestiya Rossiyskoy Akademii Nauk. Seriya Geograficheskaya. News of the Academy of Sciences, Geographical Series. 1996, 3: 86–94 [In Russian].
Vasil'chuk, Yurij K; Budantseva, Nadine A; Farquharson, Louise M; Maslakov, Alexey A; Vasil'chuk, Alla Constantinovna; Chizhova, Julia N (2018): Isotopic evidence for Holocene January air temperature variability on the East Chukotka Peninsula. Permafrost and Periglacial Processes, 29(4), 283-297, https://doi.org/10.1002/ppp.1991
Further details:
Bronk Ramsey, Christopher (2009): Bayesian Analysis of Radiocarbon Dates | Ramsey | Radiocarbon. Radiocarbon, 51(1), 337-360, https://journals.uair.arizona.edu/index.php/radiocarbon/article/view/3494
Reimer, Paula J; Bard, Edouard; Beck, J Warren; Blackwell, Paul G; Bronk Ramsey, Christopher; Buck, Caitlin E; Cheng, Hai; Edwards, R Lawrence; Friedrich, Michael; Grootes, Pieter Meiert; Guilderson, Thomas P; Haflidason, Haflidi; Hajdas, Irka; Hatte, Christine; Heaton, T J; Hoffmann, Dirk L; Hogg, Alan G; Hughen, Konrad A; Kaiser, Klaus-Felix; Kromer, Bernd; Manning, Sturt W; Niu, Mu; Reimer, Ron W; Richards, David A; Scott, Marian; Southon, John R; Staff, Richard A; Turney, Chris S M; van der Plicht, Johannes (2013): IntCal13 and Marine13 Radiocarbon Age Calibration Curves 0–50,000 Years cal BP. Radiocarbon, 55(4), 1869-1887, https://doi.org/10.2458/azu_js_rc.55.16947
Coverage:
Median Latitude: 65.924848 * Median Longitude: 170.495025 * South-bound Latitude: 65.500000 * West-bound Longitude: 169.873889 * North-bound Latitude: 66.126833 * East-bound Longitude: 171.716667
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.
Size:
3 datasets

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