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TRANSFORMATION OF KHIBINY MOUNTAIN VALLEYS BY SLUSHFLOWS, KOLA PENINSULA, NORTHWESTERN RUSSIAстатья
- Авторы: Garankina E.V., Belyaev V.R., Belyaev Yu R., Gurinov A.L., Ivanov M.M., Kuzmenkova N.V., Romanenko F.A., Surkov V.V., Tulyakov E.D.
- Сборник: Theory and Methods of Polar Science: Proceedings of International youth scientific conference on the polar geodesy, glaciology, hydrology and geophysics. St. Petersburg, Russia, 17–19 May 2018 / eds. Popov S. V., Gavrilkina S. A., Pryakhina G. V
- Год издания: 2018
- Издательство: ООО "Издательство ВВМ"
- Местоположение издательства: Санкт-Петербург
- Первая страница: 85
- Последняя страница: 94
- Аннотация: We report an attempt to reconstruct slushflow activity, evaluate its contribution into sediment budgets and impact on geomorphic structure and fluvial processes in the Khibiny Mountains valleys by means of detailed description of associated landforms and correlated deposits analyses (structural, grainsize, radionuclide fingerprinting, 14C dating). Slushflow represent a specific type of gravitational flow of water-saturated mixture of snow with limited amount of clastic material. Available results for the studied basins suggest slushflows as a leading mechanism of downstream sediment delivery and valley floor transformation in Holocene. Recurrence interval of medium-magnitude slushflows does not exceed 10-30 years, though fluvial topography is suppressed or almost nonexistent as streams are unable to rework slushflow deposits. Frequency of extreme events is much lower. Nevertheless, largest-scale bottom features and piedmont fans can be related to much more intense events associated with last deglaciation stages.
- Добавил в систему: Гаранкина Екатерина Вадимовна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Sbornik_SPb_Garankina.pdf | Sbornik_SPb_Garankina.pdf | 337,1 КБ | 3 октября 2018 [EkaterinaGarankina] |