New data on variations of stable isotopes in the pingo ice core in the southern part of the Tazovsky Peninsula
- Autores: Vasil’chuk Y.K.1, Budantseva N.A.1, Vasil’chuk A.C.1, Rogov V.V.1, Podborny Y.Y.2, Chizhova J.N.1
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Afiliações:
- Moscow State University
- OOO Center for Hydroecological Research
- Edição: Volume 472, Nº 2 (2017)
- Páginas: 200-204
- Seção: Geography
- URL: https://ogarev-online.ru/1028-334X/article/view/189301
- DOI: https://doi.org/10.1134/S1028334X17020064
- ID: 189301
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Resumo
The aim of this work is to obtain the vertical isotopic profile of the thick Pestsovoe pingo ice core in the southern part of the Tazovsky Peninsula, to determine the oxygen and hydrogen isotopic composition of the ice, and to reveal its formation conditions. Two trends were identified for the isotopic profile of the pingo ice: an insignificant increase of the δ18O (~1.5‰) and δD (~9‰) values at depths of 12–15 m and a gradual decrease of isotopic values by 3.8 and 23‰ for δ18O and δD, respectively, at a depth of 15–26 m. The formation of the pingo ice core in the semiclosed system resulted in fractionation of the isotopic composition of oxygen and hydrogen by more than 4 and 20‰, respectively.
Sobre autores
Yu. Vasil’chuk
Moscow State University
Autor responsável pela correspondência
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
V. Rogov
Moscow State University
Email: vasilch_geo@mail.ru
Rússia, Moscow, 119991
Ye. Podborny
OOO Center for Hydroecological Research
Email: vasilch_geo@mail.ru
Rússia, St. Petersburg, 199406
Ju. Chizhova
Moscow State University
Email: vasilch_geo@mail.ru
Rússia, Moscow, 119991
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