EARLY HOLOCENE OXYGEN ISOTOPE CHRONOLOGIES (11,267–6420 CAL BP) FROM ICE WEDGE AT CHARA, TRANSBAIKALIA-Reference-Cited by-同舟云学术

EARLY HOLOCENE OXYGEN ISOTOPE CHRONOLOGIES (11,267–6420 CAL BP) FROM ICE WEDGE AT CHARA, TRANSBAIKALIA

Published:2024-04 Issue:2 Volume:66 Page:400-409
ISSN:0033-8222
Container-title:Radiocarbon
language:en
Short-container-title:Radiocarbon

Author:

Vasil’chuk Yurij K^ORCID,Vasil’chuk Alla C^ORCID,Budantseva Nadine A^ORCID,Ginzburg Alexander P,Tokarev Igor V,Vasil’chuk Jessica Yu^ORCID

Abstract

ABSTRACTAccelerator mass spectrometry radiocarbon (AMS 14C) dating was used for determining the age of wedge ice. It has been found that between 11,270 and 6420 cal BP, or the Greenlandian and Northgrippian stages of the Holocene, ice wedges grew syngenetically in sandy deposits with gravel in the Chara River valley. The variations of δ18O values in the ice wedges are about 8‰, from –25.5‰ to –18.8‰. Based on the stable isotope composition of ice wedges, paleotemperature reconstructions revealed that the mean January temperature was as low as –38°C during the coldest periods of the early half of the Holocene and as high as –28°C during the warmer periods.

Publisher

Cambridge University Press (CUP)

Reference20 articles.

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