The Oxygen Isotope Composition of Late Pleistocene and Holocene Ice Wedges of Kotelny Island
- Autores: Vasil’chuk Y.1, Makeev V.2, Maslakov A.1, Budantseva N.1, Vasil’chuk A.1, Chizhova J.1
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Afiliações:
- Moscow State University
- Russian State Hydrometeorological University
- Edição: Volume 482, Nº 1 (2018)
- Páginas: 1216-1220
- Seção: Geography
- URL: https://journals.rcsi.science/1028-334X/article/view/194089
- DOI: https://doi.org/10.1134/S1028334X18090192
- ID: 194089
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Resumo
The aim of the work was to perform paleotemperature reconstructions for the Late Pleistocene and Holocene of Kotelny Island according to oxygen isotope analysis of syngenetic ice wedges. Variations of δ18O in the Late Pleistocene ice wedges formed on Kotelny Island are significant, exceeding 8‰ (from –30‰ to –22.9‰), while they are insignificant at –1.5‰ (from –23.1‰ to –21.6‰) for those in the Holocene. Reconstructions showed that the mean January temperature in the Late Pleistocene changed over 8 to 13°C. The mean annual temperature of frozen soils was about –19 or –20°C in the Late Pleistocene, and about –13 to –15°C in the Holocene, while the current temperature is about –14°C.
Sobre autores
Yu. Vasil’chuk
Moscow State University
Autor responsável pela correspondência
Email: vasilch_geo@mail.ru
Rússia, Moscow, 119991
V. Makeev
Russian State Hydrometeorological University
Email: vasilch_geo@mail.ru
Rússia, Saint Petersburg, 195196
A. Maslakov
Moscow State University
Email: vasilch_geo@mail.ru
Rússia, Moscow, 119991
N. Budantseva
Moscow State University
Email: vasilch_geo@mail.ru
Rússia, Moscow, 119991
A. Vasil’chuk
Moscow State University
Email: vasilch_geo@mail.ru
Rússia, Moscow, 119991
Ju. Chizhova
Moscow State University
Email: vasilch_geo@mail.ru
Rússia, Moscow, 119991