Друмлинные поля Новоземельско-Уральской области и их связь с Карским ледниковым центром

Аннотация

Assemblages of drumlins, drumlinoids, crag-and-tail features, giant glacial grooves and megaflutes, collectively termed «drumlin fields», are described \from SW coasts of the Kara Sea, i. e. from southernmost Novaya Zemlya, Vaygach Island, Yugorsky Peninsula and Pai-Khoi Ridge. All the landforms were built during one of the latest stages in glaciation of the Eurasian Arctic, which was radiocarbon-dated at about 8.5 key BP. At that late stage, the ice kept spreading out of the Kara Sea center, which is strongly suggested by NE to SW direction of the linear forms. This is consistent with the model of a continuous marine Eurasian ice sheet and contradicts the concepts of «restricted» and «diachronous» glaciation. It doesn't fit the concept of an early, pre-Younger Dryas, deglaciation of the Barents - Kara Seacontinental margin, either. The Kalaice-spreading center proves to have been the most stable and long-lived feature of the Northern Hemisphere's glaciation.