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Paleopedological tracers of the Late Pleistocene cryogenic environments in Europe and Western Siberiaстатья
- Авторы: Sedov Sergey, Sheinkman Vladimir, Melnikov Vladimir
- Сборник: 5th European Conference on Permafrost June 23 – July 1
- Год издания: 2018
- Место издания: Chamonix, France
- Первая страница: 1
- Последняя страница: 3
- Аннотация: Cryolithogenesis interacts with the pedogenetic processes forming a set of specific features in the solid matrix of soils. These features preserved in the buried paleosols are to use as indicators (direct and indirect tracers) of the past cryogenic environment. MIS3 paleosols north of European Russia (Upper Volga basin) and Western Siberia (Middle Ob’ basin) and MIS2 paleosols in low Austria represent hydromorphic profiles with gleyic color pattern and sometimes Histic horizons. Conspicuously, they developed in the well-drained geomorphic positions, where modern soils are non-gleyic. We suppose that the presence of permafrost in the Late Pleistocene was responsible for water logging and generation of reductomorphic soil environment. Macromorphological signs of cryoturbation and micromorphological evidences of coarse grain sorting and platy microstructure due to ice lens development provide additional direct indicators of cryogenic environment
- Добавил в систему: Шейнкман Владимир Семенович