Vasil'chuk, Yurij K; Budantseva, Nadine A; Tokarev, Igor V; Ginzburg, Alexander P; Vasil'chuk, Alla Constantinovna; Vasil'chuk, Jessica Yurevna (2024): Radiocarbon dating of samples of ice wedges near the village of the Baydarata Bay [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.965388
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Abstract:
The main purpose of this work is to establish the formation time of Holocene syngenetic ice wedges that have been exposed on the coast of Baydarata Bay near the village of Yarynskaya, 500 m to the southeast from the mouth of the Ngarka-Tambyakha River.Radiocarbon dating of microinclusions of organic matter, extracted directly from three Holocene syngenetic ice wedges, was conducted using accelerator mass spectrometry (AMS). The dating of the wedges correlates to their formation approximately 6.4, 5.0, and 1.9 cal ka BP. A comparison of the oxygen isotopic composition of the Holocene ice wedges (in which the δ18О values vary mainly from -21.8 to -13.73%) and modern ice wedges (the age of which, as a rule, does not exceed 100 years) showed a close range of variations in values. According to isotope oxygen data, the average January air paleotemperature in the Middle and Late Holocene at the coast of the Baydarata Bay was calculated. It is shown that the average January air temperature during this period here varied from about -20 to -25 °C, however, during milder winters it could be about -18 °C.
Radiocarbon dating of ice samples and organic microinclusions extracted directly from ice wedges was carried out at the Radiocarbon Laboratory of the Institute of Geography, Russian Academy of Sciences, and the Center for Applied Isotope Research, University of Georgia (United States). The age was calibrated using the IntCal20 curve and Oxcal version 4.4.4 software. The age of organic matter (cal yr BP) from ice wedges was calibrated until 1950.
Keyword(s):
Related to:
Vasil'chuk, Yurij K; Budantseva, Nadine A; Tokarev, Igor V; Ginzburg, Alexander P; Vasil'chuk, Alla Constantinovna; Vasil'chuk, Jessica Yurevna (2023): Radiocarbon Age and Stable Oxygen Isotopes in Holocene Ice Wedges on the Coast of Baydarata Bay: Reconstruction of the January Paleotemperature. Doklady Earth Sciences, 513(2), 1385-1389, https://doi.org/10.1134/S1028334X23602225
References:
Vasil'chuk, Yurij K; Budantseva, Nadine A (2022): Holocene ice wedges of the Kolyma Lowland and January paleotemperature reconstructions based on oxygen isotope records. Permafrost and Periglacial Processes, 33(1), 3-17, https://doi.org/10.1002/ppp.2128
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
Vasil'chuk, Yurij K; Vasil'chuk, Alla Constantinovna; Stanilovskaya, Julia V (2018): Early Holocene climate signals from stable isotope composition of ice wedges in the Chara Basin, northern Transbaikalia, Russia. Geoscience Frontiers, 9(2), 471-483, https://doi.org/10.1016/j.gsf.2017.04.008
Funding:
Coverage:
Latitude: 68.855631 * Longitude: 66.868475
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.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Location | Location | Vasil'chuk, Yurij K | |||
| 5 | Sample comment | Sample comment | Vasil'chuk, Yurij K | |||
| 6 | Sample ID | Sample ID | Vasil'chuk, Yurij K | |||
| 7 | Depth, sampling | Depth sampling | m | Vasil'chuk, Yurij K | Depth, ice wedge | |
| 8 | Laboratory code/label | Lab label | Vasil'chuk, Yurij K | |||
| 9 | AGE | Age | ka BP | Vasil'chuk, Yurij K | Age, 14C uncalibrated | Geocode – 1σ |
| 10 | Age, error | Age e | ± | Vasil'chuk, Yurij K | Age, 14C uncalibrated | |
| 11 | Calendar age, maximum/old | Cal age max | ka BP | Vasil'chuk, Yurij K | Age, 14C calibrated, OxCal 4.4 | |
| 12 | Calendar age, minimum/young | Cal age min | ka BP | Vasil'chuk, Yurij K | Age, 14C calibrated, OxCal 4.4 | |
| 13 | Age, median | Age median | ka | Vasil'chuk, Yurij K | Probability 95.4% |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
27 data points