Affiliation:
1. Lomonosov Moscow State University, Faculty of Geography
2. Science Park, Saint Petersburg State University
Abstract
For the first time AMS radiocarbon dating was used to date microinclusions of organic material extracted directly from Holocene syngenetic ice wedges in the European North of Russia on the coast of the Baydarata Bay near the Yarynskaya village, 500 m south of the mouth of the Ngarka-Tambyakha River (68°51′20.27″ N, 66°52′6.51″ E). Dated ice wedges formed about 6.4, 5.0 and 1.9 ka BP. 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.
Publisher
The Russian Academy of Sciences
Reference15 articles.
1. Буданцева Н.А., Белова Н.Г., Васильчук А.К., Васильчук Ю.К. Стабильные изотопы кислорода и водорода в голоценовых повторно-жильных льдах на западном побережье Байдарацкой губы, в устье реки Нгарка-Тамбьяха // Арктика и Антарктика. 2018. № 1. С. 44–65. https://doi.org/10.7256/2453-8922.0.0.25857
2. Романенко Ф.А., Андреев А.А., Сулержицкий Л.Д., Тарасов П.Е., Воскресенский К.С., Николаев В.И. Особенности формирования рельефа и рыхлых отложений западного Ямала и побережья Байдарацкой губы (Карское море) // Проблемы общей и прикладной геоэкологии Севера. М.: МГУ, 2001. С. 41–68.
3. Vasil'chuk Yu.K., Budantseva N.A., Vasil’chuk A.C., Chizhova Ju.N. Winter air temperature during the Holocene optimum in the north-eastern part of the east European plain based on ice wedge stable isotope records // Permafrost and Periglacial Processes. 2020. V. 31. Iss.2. P. 281–295. https://doi.org/10.1002/ppp.2043
4. Vasil'chuk Yu.K., Vasil’chuk A.C., Budantseva N.A. Holocene January paleotemperature of northwestern Siberia reconstructed based on stable isotope ratio of ice wedges. Permafrost and Periglacial Processes. 2023. V. 34. Iss. 1. P. 142–165. https://doi.org/10.1002/ppp.2177
5. Tikhonravova Y., Slagoda E., Butakov V., Koroleva E., Simonova G., Sysolyatin R. Isotopic composition of heterogeneous ice wedges in peatlands of the Pur-Taz interfluve (northern West Siberia) // Permafrost and Periglacial Processes. 2022. V. 33. Iss. 2. P. 114–128. https://doi.org/10.1002/ppp.2138