We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
EARLY HOLOCENE OXYGEN ISOTOPE CHRONOLOGIES (11,267–6420 CAL BP) FROM ICE WEDGE AT CHARA, TRANSBAIKALIA.
- Authors
Vasil'chuk, Yurij K; Vasil'chuk, Alla C; Budantseva, Nadine A; Ginzburg, Alexander P; Tokarev, Igor V; Vasil'chuk, Jessica Yu
- Abstract
Accelerator 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.
- Subjects
TRANSBAIKALIA (Russia); OXYGEN isotopes; ACCELERATOR mass spectrometry; HOLOCENE Epoch; RADIOCARBON dating; STABLE isotopes; WEDGES; GLACIAL Epoch
- Publication
Radiocarbon, 2024, Vol 66, Issue 2, p400
- ISSN
0033-8222
- Publication type
Article
- DOI
10.1017/RDC.2024.34