δ¹⁸O in ice wedges of yedoma deposits and Late Pleistocene paleotemperatures from the Chukchi Peninsula ...

δ¹⁸O in ice wedges of yedoma deposits in Chukchi Peninsula and Late Pleistocene paleotemperatures, 38–12 Kyr BP.Winter mean (twint.mean) and January (tJ) air temperature means for the Southern Chukchi Peninsula were inferred by comparing the oxygen isotope composition of present growing ice wedges (...

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Bibliographic Details
Main Authors: Vasil'chuk, Yurij K, Vasil'chuk, Alla Constantinovna
Format: Dataset
Language:English
Published: PANGAEA 2020
Subjects:
deuterium
heavy oxygen
Holocene
Ice wedges
Late Pleistocene
Mayn River
Permafrost
pollen and spores
radiocarbon
Southern Chukchi Peninsula
Stable isotopes
Event label
Latitude of event
Longitude of event
Location
Ice type
δ18O, water
Total annual freezing index
Temperature, winter
Temperature, air, January
Temperature, ground, annual mean
Period
Sample comment
Comment
Multiple investigations
Mass spectrometer Finnigan Delta-E
Calculated
Calculated according to Vasil'chuk, A. 2007 and Vasil'chuk, Y. 1989
Chukchi
Chukchi Peninsula
Ice
permafrost
wedge*
Online Access:https://dx.doi.org/10.1594/pangaea.915032
https://doi.pangaea.de/10.1594/PANGAEA.915032
Description
Summary:δ¹⁸O in ice wedges of yedoma deposits in Chukchi Peninsula and Late Pleistocene paleotemperatures, 38–12 Kyr BP.Winter mean (twint.mean) and January (tJ) air temperature means for the Southern Chukchi Peninsula were inferred by comparing the oxygen isotope composition of present growing ice wedges (δ18Opiw) and winter temperatures for the period of their growth, were calculated using equation: tJ = 1.5 δ18Opiw (±3 °C), twint.mean = δ18Opiw (±2 °C). Mean annual ground temperatures were calculated using reconstructions of mean summer temperature by the technique of A. Vasil'chuk (2007) and of mean winter temperature by the technique of Yu. Vasil'chuk (1989). ...

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