Название: Криогенный кальцит в пещере Обвальная (Максимовича)
Источник: Пещеры
Место публикации: Пермь
Том: 42
Выпуск:
Страницы: 97-101
Web/Url: http://nsi.psu.ru/cave/vipuski/v42.pdf
№ полки:
Добавлено: Naumenko
Ключевые слова: отложения пещер, криогенные образования
Источник: http://nsi.psu.ru/cave/vipuski/v42.pdf
Реферат: Unusual calcite formations were found in the cave in 2018, in as on large blocks, as on a clay bottom in free space were discovered. On the basis morphological, chemical and stable isotope studies, as well as the 230Th/234U dating, this calcite was found to be of cryogenic origin. Finding of such calcite, formed on the transition from Younger Dryas to the Preboreal stage of the Holocene epoch is indicative of the presence of degrading permafrost in Сentral Ural at the time.