δ²H, δ¹⁸O and Deuterium excess values in Holocene multistage massive ice near the Sabettayakha River mouth, Yamal Peninsula, northwest Siberia

Holocene massive ground ice near the Sabettayakha River mouth, on the coast of the Gulf of Ob, Yamal Peninsula, northwest Siberia is studied. The multistage massive-ice bodies have thickness up to 5.7 m and occur in Holocene sediments of modern floodplain and the first terrace of the coastal lagoon. Stable isotope analyses revealed that the multistage massive ice bodies formed syngenetically during the freezing of water- saturated sediment, under intensive cryogenic fractionation