Oxygen Isotope Composition of Holocene Ice Wedges of Eastern Chukotka

The isotope-oxygen composition of ice wedges, ground ice, ice of the intrusive-segregated seasonal mound, and segregated ice of Eastern Chukotka near Koolen Lake, the settlement of Lavrentiya on the Chul’kheveem River, the settlement of Lorino, and the city of Anadyr on the Onemen Bay coast was stud...

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Bibliographic Details
Published in:Doklady earth sciences 2018-06, Vol.480 (2), p.758-762
Main Authors: Vasil’chuk, Yu. K., Budantseva, N. A., Vasil’chuk, A. C., Maslakov, A. A., Chizhova, Ju. N.
Format: Article
Language:English
Subjects:
Air temperature
Chemical composition
Climate variability
Comparative analysis
Earth and Environmental Science
Earth Sciences
Geography
Ground ice
Holocene
Holocene ice
Holocene paleogeography
Ice
Ice wedges
Isotope composition
Isotopes
Lakes
Mathematical models
Oxygen
Oxygen isotopes
Rivers
Wedges
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Summary:The isotope-oxygen composition of ice wedges, ground ice, ice of the intrusive-segregated seasonal mound, and segregated ice of Eastern Chukotka near Koolen Lake, the settlement of Lavrentiya on the Chul’kheveem River, the settlement of Lorino, and the city of Anadyr on the Onemen Bay coast was studied. The comparison of isotopic diagrams showed that the variations in δ 18 O of the Holocene ice wedges of Eastern Chukotka did not exceed 2‰, which indicates the insignificant variability of climatic winter conditions in the late Holocene. The long-term mean-January temperature values varied less than 3°C according to calculations from the equations of interrelation between air temperature and the isotopic composition of the wedges.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X18060107