Radiocarbon Dating of δ18O-δD Plots in Late Pleistocene Ice-Wedges of the Duvanny Yar (Lower Kolyma River, Northern Yakutia)

• DOI: 10.1017/s0033822200041199
• Publication Date: 2016-07-20T05:11:43Z
• Authors: Yurij K Vasil'chuk; Alla C Vasil'chuk; Dieter Rank; Walter Kutschera; Jong-Chan Kim
• Keywords: Accelerator mass spectrometry; Absolute dating; Radiometric dating; Stadial

The Duvanny Yar cross-section located in the Lower Kolyma River valley of Northern Yakutia (69°N, 158°E, height above level 55 m), has been studied and dated detail by radiocarbon. sequence mainly consists sandy loam sediments with large syngenetic ice wedges. Their width at top is 1–3.5 m. Allochthonous organic material occurs high content, concentrating as 0.5–0.7 m lenses. Shrub fragments, twigs, mammoth bones are accumulated peaty layers. Through interpolation based on a series 14 C dates, dating host provides an approximate age for dates various types sometimes very close, but not all agreement. Therefore, do accurately show δ 18 O δD plots. A new approach developed to strategy syncryogenic admixture allochthonous material. main purpose this study consider detection inversions or disturbances permafrost sediment date series. Direct accelerator mass spectrometry (AMS) confirmed relatively young