Yurij K Vasil’chuk
Biographic Data
| ID | 4456804 |
|---|---|
| NAME | Yurij K Vasil’chuk |
| GIVEN NAMES | Yurij K |
| FAMILY NAME | Vasil’chuk |
| SIGNATURE | VASIL’CHUK Y K |
| AFFILIATIONS | Lomonosov Moscow State University |
| ORCID | 0000-0001-5847-5568 |
| VERIFIED | Yes |
| TOTAL WORKS | 8 |
| TOTAL CITATIONS | 13 |
| WORKS AS AUTHOR | 8 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 1997 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
AMS radiocarbon age and stable oxygen and hydrogen isotopes ratio of Holocene ice wedges of the Pur-Taz interfluve
Six AMS 14 C dates from an ice wedge tested in the Holocene wetland on the Pur-Taz interfluve in northwest Siberia are shown here. In the Pur-Taz peatland, peat accumulation started between 11 and 10 cal ka BP, and in the detail studied site, it started after 9.5 cal ka BP. Within the studied peatland, intense ice wedge growth took place between 5.3 and 3.4 cal ka BP. The growth of ice wedges near their southern limit occurred at least 3–4 ka aft…
Direct AMS radiocarbon age of the MIS 3-2 thin composite wedges from Batagay Upper Sand
We used AMS 14 C dating to determine the age of the composite wedge formation in the Batagay Upper Sand unit. The composite wedges are interpreted as syngenetic structures; they have grown vertically upward with aggradation of the host sandy deposits. The formation of composite wedges in Upper Sand commenced no later than 38.3 cal ka BP and stopped not earlier than 25.5 cal ka BP in the northwestern part of the slump. In the formation of ice wedg…
Early Holocene Oxygen Isotope Chronologies (11,267–6420 Cal Bp) From Ice Wedge at Chara, Transbaikalia
Accelerator mass spectrometry radiocarbon (AMS 14 C) 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 δ 18 O values in the ice wedges are about 8‰, from –25.5‰ to –18.8‰. Based on the stable isotope composition of ice wedg…
First Direct Radiocarbon Dating (22–27 Cal Ka Bp) of Massive Ice at the Mechigmen and Lavrentiya Bays Coast, Eastern Chukotka
The Eastern Chukotka is considered a unique permafrost region where massive ice bodies are widespread. However, the origin and age of these ice formations are often discussed. The age of the massive ice of Chukotka was established for the first time using AMS 14 C dating. It was revealed that three massive ice bodies on the coast of Mechigmen Bay were formed at the end of the Late Pleistocene: a) near the Akkani site, 21,612 to 22,147 cal BP; b) …
Chronologies of active growth of ice wedges and Middle Holocene palaeoclimate at Lorino site, Chukchi Peninsula, easternmost Siberia
AMS radiocarbon ages of organic matter from ice wedges and enclosing peat were determined for the polygonal peatland at the Lorino site on the eastern coast of the Chukchi Peninsula. The study’s goal was to fill a knowledge gap about the dynamics of polygonal peatlands with ice wedges and winter climate conditions during the Holocene in this easternmost region of the Russian Arctic. It has been found that peatland accumulated during the Younger D…
Ams 14 C Dating of Seyakha Yedoma and January Air Palaeotemperatures for 25–21 Cal Ka Bp Based on the Stable Isotope Compositions of Syngenetic Ice Wedges
Yedoma sediments with thick syngenetic ice wedges have been studied on the Yamal Peninsula, northwestern Siberia. The accumulation of yedoma strata occurred under alternating subaqueous-subaerial conditions, and three tiers of ice wedge were formed mainly on subaerial stages. The ice wedges and enclosing sediments were dated, revealing that the ice wedges were formed between 29 and 18 cal ka BP, while the enclosing sediments are generally older, …
Mis 3–2 Paleo-Winter Temperature Reconstructions Obtained From Stable Water Isotope Records of Radiocarbon-Dated Ice Wedges of the Batagay Ice Complex (Yana Upland, Eastern Siberia)
The recently formed Batagay mega-thaw slump exposes permafrost deposits to a depth of up to 92 m below ground surface and provides insight into the climate record in the region of the most severe continental climate in the Northern Hemisphere. Radiocarbon and stable isotope data were obtained to verify the age of ice wedges in the Batagay yedoma (upper Ice Complex in the local cryostratigraphy), and to deduce paleoclimate information. A millennia…
Radiocarbon Ages of Mammoths in Northern Eurasia
Many mammoth remains have been radiocarbon-dated. We present here more than 360 14 C dates on bones, tusks, molars and soft tissues of mammoths and discuss some issues connected with the evolution of mammoths and their environment: the problem of the last mammoth; mammoth taphonomy; the plant remains and stable isotope records accompanying mammoth fossils; paleoclimate during the time of the mammoths and dating of host sediments. The temporal dis…
Radiocarbon Ages of Mammoths in Northern Eurasia
Many mammoth remains have been radiocarbon-dated. We present here more than 360 14 C dates on bones, tusks, molars and soft tissues of mammoths and discuss some issues connected with the evolution of mammoths and their environment: the problem of the last mammoth; mammoth taphonomy; the plant remains and stable isotope records accompanying mammoth fossils; paleoclimate during the time of the mammoths and dating of host sediments. The temporal dis…
Radiocarbon Ages of Mammoths in Northern Eurasia
Many mammoth remains have been radiocarbon-dated. We present here more than 360 14 C dates on bones, tusks, molars and soft tissues of mammoths and discuss some issues connected with the evolution of mammoths and their environment: the problem of the last mammoth; mammoth taphonomy; the plant remains and stable isotope records accompanying mammoth fossils; paleoclimate during the time of the mammoths and dating of host sediments. The temporal dis…
Ams 14 C Dating of Seyakha Yedoma and January Air Palaeotemperatures for 25–21 Cal Ka Bp Based on the Stable Isotope Compositions of Syngenetic Ice Wedges
Yedoma sediments with thick syngenetic ice wedges have been studied on the Yamal Peninsula, northwestern Siberia. The accumulation of yedoma strata occurred under alternating subaqueous-subaerial conditions, and three tiers of ice wedge were formed mainly on subaerial stages. The ice wedges and enclosing sediments were dated, revealing that the ice wedges were formed between 29 and 18 cal ka BP, while the enclosing sediments are generally older, …
Mis 3–2 Paleo-Winter Temperature Reconstructions Obtained From Stable Water Isotope Records of Radiocarbon-Dated Ice Wedges of the Batagay Ice Complex (Yana Upland, Eastern Siberia)
The recently formed Batagay mega-thaw slump exposes permafrost deposits to a depth of up to 92 m below ground surface and provides insight into the climate record in the region of the most severe continental climate in the Northern Hemisphere. Radiocarbon and stable isotope data were obtained to verify the age of ice wedges in the Batagay yedoma (upper Ice Complex in the local cryostratigraphy), and to deduce paleoclimate information. A millennia…
Early Holocene Oxygen Isotope Chronologies (11,267–6420 Cal Bp) From Ice Wedge at Chara, Transbaikalia
Accelerator mass spectrometry radiocarbon (AMS 14 C) 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 δ 18 O values in the ice wedges are about 8‰, from –25.5‰ to –18.8‰. Based on the stable isotope composition of ice wedg…
First Direct Radiocarbon Dating (22–27 Cal Ka Bp) of Massive Ice at the Mechigmen and Lavrentiya Bays Coast, Eastern Chukotka
The Eastern Chukotka is considered a unique permafrost region where massive ice bodies are widespread. However, the origin and age of these ice formations are often discussed. The age of the massive ice of Chukotka was established for the first time using AMS 14 C dating. It was revealed that three massive ice bodies on the coast of Mechigmen Bay were formed at the end of the Late Pleistocene: a) near the Akkani site, 21,612 to 22,147 cal BP; b) …
Chronologies of active growth of ice wedges and Middle Holocene palaeoclimate at Lorino site, Chukchi Peninsula, easternmost Siberia
AMS radiocarbon ages of organic matter from ice wedges and enclosing peat were determined for the polygonal peatland at the Lorino site on the eastern coast of the Chukchi Peninsula. The study’s goal was to fill a knowledge gap about the dynamics of polygonal peatlands with ice wedges and winter climate conditions during the Holocene in this easternmost region of the Russian Arctic. It has been found that peatland accumulated during the Younger D…
Direct AMS radiocarbon age of the MIS 3-2 thin composite wedges from Batagay Upper Sand
We used AMS 14 C dating to determine the age of the composite wedge formation in the Batagay Upper Sand unit. The composite wedges are interpreted as syngenetic structures; they have grown vertically upward with aggradation of the host sandy deposits. The formation of composite wedges in Upper Sand commenced no later than 38.3 cal ka BP and stopped not earlier than 25.5 cal ka BP in the northwestern part of the slump. In the formation of ice wedg…
AMS radiocarbon age and stable oxygen and hydrogen isotopes ratio of Holocene ice wedges of the Pur-Taz interfluve
Six AMS 14 C dates from an ice wedge tested in the Holocene wetland on the Pur-Taz interfluve in northwest Siberia are shown here. In the Pur-Taz peatland, peat accumulation started between 11 and 10 cal ka BP, and in the detail studied site, it started after 9.5 cal ka BP. Within the studied peatland, intense ice wedge growth took place between 5.3 and 3.4 cal ka BP. The growth of ice wedges near their southern limit occurred at least 3–4 ka aft…
Geology and Paleoclimatology Research (7 works) · Radiocarbon dating (7 works) · Geology (6 works) · Paleontology (6 works) · Methane Hydrates and Related Phenomena (5 works) · Oceanography (5 works) · Holocene (4 works) · Ice wedge (4 works) · Permafrost (4 works) · Archaeology and ancient environmental studies (3 works)