δ18O and δD variations in Holocene massive ice in the Sabettayakha river mouth, northern Yamal Peninsula
- Авторы: Vasil’chuk Y.K.1, Podborny Y.Y.2, Budantseva N.A.1, Vasil’chuk A.C.1, Sullina A.N.2, Chizhova J.N.1
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Учреждения:
- Moscow State University
- ООО Center for Hydroecological Studies
- Выпуск: Том 470, № 2 (2016)
- Страницы: 1086-1092
- Раздел: Geography
- URL: https://ogarev-online.ru/1028-334X/article/view/189038
- DOI: https://doi.org/10.1134/S1028334X16100172
- ID: 189038
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Аннотация
The conditions of formation of massive ice near the South Tambey gas-condensate field in northern Yamal Peninsula are studied. It is shown that massive ice bodies up to 4.5 m thick occur in the Holocene deposits of the high laida and the first terrace. Therefore, they cannot be the remains of glaciers; they are ground ice formations. All three types of massive ice have quite various isotopic compositions: the values of δD range from–107 to–199.7, and δ18O from–15.7 to–26.48‰. Such a significant differentiation in isotopic composition is a result of cryogenic fractionation in a freezing water-saturated sediment. The most negative isotope values are even lower in this Holocene massive ice than in the Late Pleistocene ice-wedge ice of Yamal Peninsula.
Об авторах
Yu. Vasil’chuk
Moscow State University
Автор, ответственный за переписку.
Email: vasilch_geo@mail.ru
Россия, Moscow
Ye. Podborny
ООО Center for Hydroecological Studies
Email: vasilch_geo@mail.ru
Россия, St. Petersburg
N. Budantseva
Moscow State University
Email: vasilch_geo@mail.ru
Россия, Moscow
A. Vasil’chuk
Moscow State University
Email: vasilch_geo@mail.ru
Россия, Moscow
A. Sullina
ООО Center for Hydroecological Studies
Email: vasilch_geo@mail.ru
Россия, St. Petersburg
Ju. Chizhova
Moscow State University
Email: vasilch_geo@mail.ru
Россия, Moscow
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