AMS radiocarbon dating (22-27 cal Ka BP) of massive ice on the coast of Mechigmen and Lavrentia Bays, Eastern Chukotka, and stable isotope (δ18O, δ2H) composition of dated ice
Field studies of the Eastern Chukotka's massive ice carried out in 2016, 2017, and 2020. The three key sites of the studied massive ice bodies are located on the coast of Mechigmen Bay: a) 2 km southeast from the Chulkheveem (Akkani) River; b) 2 km south of the Lavrentiya settlement; and c) 7 k...
Published in: | Radiocarbon |
---|---|
Main Authors: | , , , , |
Format: | Other/Unknown Material |
Language: | English |
Published: |
PANGAEA
2024
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.971505 https://doi.org/10.1594/PANGAEA.971505 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.971505 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.971505 2024-09-15T18:02:04+00:00 AMS radiocarbon dating (22-27 cal Ka BP) of massive ice on the coast of Mechigmen and Lavrentia Bays, Eastern Chukotka, and stable isotope (δ18O, δ2H) composition of dated ice Vasil'chuk, Yurij K Budantseva, Nadine A Maslakov, Alexey A Vasil'chuk, Alla Constantinovna Vasil'chuk, Jessica Yurevna MEDIAN LATITUDE: 66.871336 * MEDIAN LONGITUDE: 176.540687 * SOUTH-BOUND LATITUDE: 65.507889 * WEST-BOUND LONGITUDE: 66.813000 * NORTH-BOUND LATITUDE: 69.721000 * EAST-BOUND LONGITUDE: -133.150000 * DATE/TIME START: 2016-09-04T01:30:00 * DATE/TIME END: 2020-07-30T02:00:00 2024 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.971505 https://doi.org/10.1594/PANGAEA.971505 en eng PANGAEA Vasil'chuk, Yurij K; Budantseva, Nadine A; Maslakov, Alexey A; Vasil'chuk, Alla Constantinovna; Vasil'chuk, Jessica Yurevna (2024): First direct radiocarbon dating (22-27 cal Ka BP) of massive ice at the Mechigmen and Lavrentia Bays coast, Eastern Chukotka. Radiocarbon, 66(2), 410-420, https://doi.org/10.1017/RDC.2024.21 https://doi.pangaea.de/10.1594/PANGAEA.971505 https://doi.org/10.1594/PANGAEA.971505 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess AMS deuterium Late Pleistocene massive ice oxygen isotopes radiocarbon dataset bundled publication 2024 ftpangaea https://doi.org/10.1594/PANGAEA.97150510.1017/RDC.2024.21 2024-09-03T23:52:03Z Field studies of the Eastern Chukotka's massive ice carried out in 2016, 2017, and 2020. The three key sites of the studied massive ice bodies are located on the coast of Mechigmen Bay: a) 2 km southeast from the Chulkheveem (Akkani) River; b) 2 km south of the Lavrentiya settlement; and c) 7 km south of the Lavrentiya settlement. Direct AMS radiocarbon dating of organic micro-inclusions extracted from the ice determined the radiocarbon age of three massive ice bodies with a high degree of accuracy. The study revealed the intrasedimental origin of the studied massive ice bodies, which formed epigenetically at the end of the Late Pleistocene (22–27 cal ka BP) during the final stage of MIS2. Variations of δ18O and δ2H values in ice samples are insignificant: by about 10‰ for δ18O values (from –14.8‰ to –24.5‰) and about 75‰ for the δ2H values (from -116‰ to -191‰). Slopes of the δ2H-δ18O lines lower than 8 indicate the evaporation of initial water or 18O isotope fractionation during freezing. Other/Unknown Material Chukotka PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(66.813000,-133.150000,69.721000,65.507889) Radiocarbon 66 2 410 420 |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
AMS deuterium Late Pleistocene massive ice oxygen isotopes radiocarbon |
spellingShingle |
AMS deuterium Late Pleistocene massive ice oxygen isotopes radiocarbon Vasil'chuk, Yurij K Budantseva, Nadine A Maslakov, Alexey A Vasil'chuk, Alla Constantinovna Vasil'chuk, Jessica Yurevna AMS radiocarbon dating (22-27 cal Ka BP) of massive ice on the coast of Mechigmen and Lavrentia Bays, Eastern Chukotka, and stable isotope (δ18O, δ2H) composition of dated ice |
topic_facet |
AMS deuterium Late Pleistocene massive ice oxygen isotopes radiocarbon |
description |
Field studies of the Eastern Chukotka's massive ice carried out in 2016, 2017, and 2020. The three key sites of the studied massive ice bodies are located on the coast of Mechigmen Bay: a) 2 km southeast from the Chulkheveem (Akkani) River; b) 2 km south of the Lavrentiya settlement; and c) 7 km south of the Lavrentiya settlement. Direct AMS radiocarbon dating of organic micro-inclusions extracted from the ice determined the radiocarbon age of three massive ice bodies with a high degree of accuracy. The study revealed the intrasedimental origin of the studied massive ice bodies, which formed epigenetically at the end of the Late Pleistocene (22–27 cal ka BP) during the final stage of MIS2. Variations of δ18O and δ2H values in ice samples are insignificant: by about 10‰ for δ18O values (from –14.8‰ to –24.5‰) and about 75‰ for the δ2H values (from -116‰ to -191‰). Slopes of the δ2H-δ18O lines lower than 8 indicate the evaporation of initial water or 18O isotope fractionation during freezing. |
format |
Other/Unknown Material |
author |
Vasil'chuk, Yurij K Budantseva, Nadine A Maslakov, Alexey A Vasil'chuk, Alla Constantinovna Vasil'chuk, Jessica Yurevna |
author_facet |
Vasil'chuk, Yurij K Budantseva, Nadine A Maslakov, Alexey A Vasil'chuk, Alla Constantinovna Vasil'chuk, Jessica Yurevna |
author_sort |
Vasil'chuk, Yurij K |
title |
AMS radiocarbon dating (22-27 cal Ka BP) of massive ice on the coast of Mechigmen and Lavrentia Bays, Eastern Chukotka, and stable isotope (δ18O, δ2H) composition of dated ice |
title_short |
AMS radiocarbon dating (22-27 cal Ka BP) of massive ice on the coast of Mechigmen and Lavrentia Bays, Eastern Chukotka, and stable isotope (δ18O, δ2H) composition of dated ice |
title_full |
AMS radiocarbon dating (22-27 cal Ka BP) of massive ice on the coast of Mechigmen and Lavrentia Bays, Eastern Chukotka, and stable isotope (δ18O, δ2H) composition of dated ice |
title_fullStr |
AMS radiocarbon dating (22-27 cal Ka BP) of massive ice on the coast of Mechigmen and Lavrentia Bays, Eastern Chukotka, and stable isotope (δ18O, δ2H) composition of dated ice |
title_full_unstemmed |
AMS radiocarbon dating (22-27 cal Ka BP) of massive ice on the coast of Mechigmen and Lavrentia Bays, Eastern Chukotka, and stable isotope (δ18O, δ2H) composition of dated ice |
title_sort |
ams radiocarbon dating (22-27 cal ka bp) of massive ice on the coast of mechigmen and lavrentia bays, eastern chukotka, and stable isotope (δ18o, δ2h) composition of dated ice |
publisher |
PANGAEA |
publishDate |
2024 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.971505 https://doi.org/10.1594/PANGAEA.971505 |
op_coverage |
MEDIAN LATITUDE: 66.871336 * MEDIAN LONGITUDE: 176.540687 * SOUTH-BOUND LATITUDE: 65.507889 * WEST-BOUND LONGITUDE: 66.813000 * NORTH-BOUND LATITUDE: 69.721000 * EAST-BOUND LONGITUDE: -133.150000 * DATE/TIME START: 2016-09-04T01:30:00 * DATE/TIME END: 2020-07-30T02:00:00 |
long_lat |
ENVELOPE(66.813000,-133.150000,69.721000,65.507889) |
genre |
Chukotka |
genre_facet |
Chukotka |
op_relation |
Vasil'chuk, Yurij K; Budantseva, Nadine A; Maslakov, Alexey A; Vasil'chuk, Alla Constantinovna; Vasil'chuk, Jessica Yurevna (2024): First direct radiocarbon dating (22-27 cal Ka BP) of massive ice at the Mechigmen and Lavrentia Bays coast, Eastern Chukotka. Radiocarbon, 66(2), 410-420, https://doi.org/10.1017/RDC.2024.21 https://doi.pangaea.de/10.1594/PANGAEA.971505 https://doi.org/10.1594/PANGAEA.971505 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.97150510.1017/RDC.2024.21 |
container_title |
Radiocarbon |
container_volume |
66 |
container_issue |
2 |
container_start_page |
410 |
op_container_end_page |
420 |
_version_ |
1810439167626182656 |