Earth’s Cryosphere, 2020, vol. XXIV, No. 2, pp. 3–14
10.21782/KZ1560-7496-2020-2(3-14)

SYNGENETIC ICE WEDGES AND AGE OF SLOPE YEDOMA DEPOSITS ON THE FOOTHILL OF THE KULAR RIDGE

Yu.K. Vasil’chuk, A.C. Vasil’chuk

Lomonosov Moscow State University, Faculties of Geography and Geology, 1, Leninskie Gory, Moscow, 119991, Russia; vasilch_geo@mail.ru
Tyumen State University, 6, Volodarskogo str., Tyumen, 625003, Russia

The structure and composition of Late Pleistocene ice wedges in the ice complex outcropping onto gently sloping Kular ridge in the western Yana-Indigirka lowland are considered. Ice wedges are dated 47–42 and 37–32 kyr BP. Over this time, relatively high temperatures of the growing season were recorded twice. Their rise appeared to be sufficient for the growth of trees, while a relatively warm summer season activated slope processes and accumulation of slope yedoma deposits.

Key words: ice wedges, Late Pleistocene, permafrost, yedoma, radiocarbon dating, Kular ridge, Northern Yakutia

Please cite as:

Yu.K. Vasil’chuk, A.C. Vasil’chuk. Syngenetic ice wedges and age of slope yedoma deposits on the foothill of the Kular ridge. Earth’s Cryosphere, 2020, vol. XXIV, No. 2, pp. 3–14, DOI:10.21782/KZ1560-7496-2020-2(3-14)