Synchronous Isotopic Curves in Ice Wedges of the Batagay Yedoma: Precision Matching and Similarity Scoring
ABSTRACT The purpose of the study is to compare the results of the stable isotope analysis (δ 18 O, δ 2 H, and deuterium excess values) of parallel and synchronous ice wedges exposed in one outcrop in the upper part of the Batagay Yedoma (67.58° N, 134.77° E) and to estimate their precision, that is...
Published in: | Permafrost and Periglacial Processes |
---|---|
Main Authors: | , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2024
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/ppp.2243 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.2243 |
id |
crwiley:10.1002/ppp.2243 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/ppp.2243 2024-09-15T18:30:15+00:00 Synchronous Isotopic Curves in Ice Wedges of the Batagay Yedoma: Precision Matching and Similarity Scoring Vasil'chuk, Yurij K. Vasil'chuk, Alla C. Budantseva, Nadine A. Vasil'chuk, Jessica Yu. Ginzburg, Alexander P. Russian Science Foundation 2024 http://dx.doi.org/10.1002/ppp.2243 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.2243 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes ISSN 1045-6740 1099-1530 journal-article 2024 crwiley https://doi.org/10.1002/ppp.2243 2024-08-13T04:12:37Z ABSTRACT The purpose of the study is to compare the results of the stable isotope analysis (δ 18 O, δ 2 H, and deuterium excess values) of parallel and synchronous ice wedges exposed in one outcrop in the upper part of the Batagay Yedoma (67.58° N, 134.77° E) and to estimate their precision, that is, a measure of similarity of independent isotope results of two ice wedges. Detailed sampling of two syngenetic ice wedges (IW‐17 and IW‐20) for isotope analysis was carried out in the exposure of the thermo‐erosional ravine in the southeastern part of the Batagay megaslump. In total, results of 105 measurements for IW‐17 and 59 measurements for IW‐20 were obtained. According to 14 C AMS ages of organic microinclusions in the ice‐wedge ice, the studied ice wedges began to form no later than 42 cal ka BP. The termination of their growth was dated to about 11.7 cal ka BP. For both ice wedges, generally low isotope values were obtained. For the IW‐17, the mean values are −34.38‰ for δ 18 O, −264.82‰ for δ 2 H, and 10.2‰ for d exc . For IW‐20, the mean isotope values are −34.09‰ for δ 18 O, −262.91‰ for δ 2 H, and 9.84‰ for d exc . Statistical tests showed significant correlations between the isotope data in the upper parts of ice wedges that may be explained by similar conditions during their growth at this stage. Our results allow us to refine the solutions to the two main issues studied of the Late Pleistocene Yedoma: the age of the ice wedges, the accuracy of the isotope profiles, and the paleotemperature interpretation of the isotope records. Article in Journal/Newspaper Permafrost and Periglacial Processes Wiley Online Library Permafrost and Periglacial Processes |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
ABSTRACT The purpose of the study is to compare the results of the stable isotope analysis (δ 18 O, δ 2 H, and deuterium excess values) of parallel and synchronous ice wedges exposed in one outcrop in the upper part of the Batagay Yedoma (67.58° N, 134.77° E) and to estimate their precision, that is, a measure of similarity of independent isotope results of two ice wedges. Detailed sampling of two syngenetic ice wedges (IW‐17 and IW‐20) for isotope analysis was carried out in the exposure of the thermo‐erosional ravine in the southeastern part of the Batagay megaslump. In total, results of 105 measurements for IW‐17 and 59 measurements for IW‐20 were obtained. According to 14 C AMS ages of organic microinclusions in the ice‐wedge ice, the studied ice wedges began to form no later than 42 cal ka BP. The termination of their growth was dated to about 11.7 cal ka BP. For both ice wedges, generally low isotope values were obtained. For the IW‐17, the mean values are −34.38‰ for δ 18 O, −264.82‰ for δ 2 H, and 10.2‰ for d exc . For IW‐20, the mean isotope values are −34.09‰ for δ 18 O, −262.91‰ for δ 2 H, and 9.84‰ for d exc . Statistical tests showed significant correlations between the isotope data in the upper parts of ice wedges that may be explained by similar conditions during their growth at this stage. Our results allow us to refine the solutions to the two main issues studied of the Late Pleistocene Yedoma: the age of the ice wedges, the accuracy of the isotope profiles, and the paleotemperature interpretation of the isotope records. |
author2 |
Russian Science Foundation |
format |
Article in Journal/Newspaper |
author |
Vasil'chuk, Yurij K. Vasil'chuk, Alla C. Budantseva, Nadine A. Vasil'chuk, Jessica Yu. Ginzburg, Alexander P. |
spellingShingle |
Vasil'chuk, Yurij K. Vasil'chuk, Alla C. Budantseva, Nadine A. Vasil'chuk, Jessica Yu. Ginzburg, Alexander P. Synchronous Isotopic Curves in Ice Wedges of the Batagay Yedoma: Precision Matching and Similarity Scoring |
author_facet |
Vasil'chuk, Yurij K. Vasil'chuk, Alla C. Budantseva, Nadine A. Vasil'chuk, Jessica Yu. Ginzburg, Alexander P. |
author_sort |
Vasil'chuk, Yurij K. |
title |
Synchronous Isotopic Curves in Ice Wedges of the Batagay Yedoma: Precision Matching and Similarity Scoring |
title_short |
Synchronous Isotopic Curves in Ice Wedges of the Batagay Yedoma: Precision Matching and Similarity Scoring |
title_full |
Synchronous Isotopic Curves in Ice Wedges of the Batagay Yedoma: Precision Matching and Similarity Scoring |
title_fullStr |
Synchronous Isotopic Curves in Ice Wedges of the Batagay Yedoma: Precision Matching and Similarity Scoring |
title_full_unstemmed |
Synchronous Isotopic Curves in Ice Wedges of the Batagay Yedoma: Precision Matching and Similarity Scoring |
title_sort |
synchronous isotopic curves in ice wedges of the batagay yedoma: precision matching and similarity scoring |
publisher |
Wiley |
publishDate |
2024 |
url |
http://dx.doi.org/10.1002/ppp.2243 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.2243 |
genre |
Permafrost and Periglacial Processes |
genre_facet |
Permafrost and Periglacial Processes |
op_source |
Permafrost and Periglacial Processes ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.2243 |
container_title |
Permafrost and Periglacial Processes |
_version_ |
1810471719388839936 |