δ18О Variations in Late Holocene Ice-Wedges and Winter Air Temperature variability in the Yamal Peninsula, Russia and in Adventdalen, Svalbard

Авторы: Budantseva N.A., Vasilchuk A.C., Zemskova A.M., Chizhova Ju N., Vasilchuk Yu K., Christiansen H.H.
Сборник: Permafrost, Tenth International Conference, Proceedings. Salekhard, 25-29 June 2012
Том: 2
Год издания: 2012
Место издания: Salekhard
Первая страница: 41
Последняя страница: 45
Аннотация: The content of stable oxygen isotopes in syngenetic Late Holocene ice-wedges located in the Erkutayakha River valley in Southern Yamal and in the Adventdalen valley in Svalbard were investigated and compared. The variation of the δ18О values did not exceed 2-3.5‰ in the ice-wedges of the two sites, which are 2000 km apart, but located in different climatic areas. The isotope data of the ice-wedges enable reconstruction of the mean winter air temperature for Late Holocene. The variability range corresponds to approximately 2.5oC. There is correlation between isotope curves from the ice-wedge in the Adventdalen valley and from glacier ice from the Lomonosov Plateau in Svalbard. This indicates the correspondence between the scale and the chronology of the change in the climatic conditions in the Late Holocene.
Добавил в систему: Васильчук Юрий Кириллович

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