Аннотация:The ice-rich permafrost deposits of Northeast Siberia are characterized by different types
of ground ice. Among them, ice wedges are the most abundant type and form by the
periodic repetition of wintertime frost cracking and subsequent crack-filling by snowmelt in
spring. Consequently, the oxygen and hydrogen isotopic composition of the wedgeforming
ice veins can be related to winter precipitation and, therefore, to winter
temperatures during the time of their formation. Organic remains of ice wedges can be
dated by the 14C method.