Pleistocene ice at the bottoln of the Vavilov ice cap, Severnaya Zellllya, Russian Arctic

Michel Stiévenard (1) , Vladimir Nikolaëv , Dmitri Yu Bol’shiyanov , Christine Fléhoc (1) , Jean Jouzel (1) , Oleg Klementyev , Roland Souchez , Mi Chel Stievenard

1 LMCE - Laboratoire de Modélisation du Climat et de l'Environnement

The Vavilov ice cap was perforated in 1988 by a drilling which reached the underlying frozen sediments. In contrast to the overlying glacier ice, the basal ice is composed of different ice layers with a variable debris load. The stable-isotope composition of these layers shows δ values much lower than everywhere else in the core or in the Vavilov ice cap. This is most probably the signature of a remnant of Pleistocene ice which, for the first time, is shown to occur in the Russian Arctic.

Domaines: Océan, Atmosphère; Interfaces continentales, environnement

Michel Stiévenard, Vladimir Nikolaëv, Dmitri Yu Bol’shiyanov, Christine Fléhoc, Jean Jouzel, et al.. Pleistocene ice at the bottoln of the Vavilov ice cap, Severnaya Zellllya, Russian Arctic. Journal of Glaciology, 1996, 42 (142), pp.403-406. ⟨10.3189/S0022143000003385⟩. ⟨hal-03334914⟩