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

• 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

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). ...