the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Strategy of valid 14C dates choice in syngenetic permafrost
Abstract. The main problem of radiocarbon dating within permafrost is the uncertain reliability of the 14C dates. Syngenetic sediments contain allochthonous organic deposit that originated at a distance from its present position. Due to the very good preservation of organic materials in permafrost conditions and numerous re-burials of the fossils from ancient deposits into younger ones the dates could be both younger and older than the true age of dated material. The strategy for the most authentic radiocarbon date selection for dating of syncryogenic sediments is considered taking into account the fluvial origin of the syngenetic sediments. The re-deposition of organic material is discussed in terms of cyclic syncryogenic sedimentation and also the possible re-deposition of organic material in subaerial-subaqueous conditions. The advantages and the complications of dating organic micro-inclusions from ice wedges by the accelerator mass spectrometry (AMS) method are discussed applying to true age of dated material search. Radiocarbon dates of different organic materials from the same samples are compared. The younger age of the yedoma from cross-sections of Duvanny Yar in Kolyma River and Mamontova Khayata in the mouth of Lena River is substantiated due to the principle of the choice of the youngest 14C date from the set.
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RC C2586: 'Review', Anonymous Referee #1, 05 Dec 2014
- AC C2998: 'Strategy of valid 14C dates choice in syngenetic permafrost', Yurij Vasil'chuk, 29 Jan 2015
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RC C2596: 'Reviewers comment- Strategy of valid 14C dates choice in syngenetic permafrost', Anonymous Referee #2, 06 Dec 2014
- AC C2986: 'Strategy of valid 14C dates choice in syngenetic permafrost', Yurij Vasil'chuk, 29 Jan 2015
-
RC C2586: 'Review', Anonymous Referee #1, 05 Dec 2014
- AC C2998: 'Strategy of valid 14C dates choice in syngenetic permafrost', Yurij Vasil'chuk, 29 Jan 2015
-
RC C2596: 'Reviewers comment- Strategy of valid 14C dates choice in syngenetic permafrost', Anonymous Referee #2, 06 Dec 2014
- AC C2986: 'Strategy of valid 14C dates choice in syngenetic permafrost', Yurij Vasil'chuk, 29 Jan 2015
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Cited
5 citations as recorded by crossref.
- Yedoma. Part 3. Annals of geocryological research, study of radiocarbon age, the stable-isotope composition studies in the 21st century Y. Vasil'chuk 10.7256/2453-8922.2023.4.68845
- Validity of radiocarbon ages of Siberian yedoma Y. Vasil'chuk & A. Vasil'chuk 10.1016/j.grj.2017.02.004
- Ice Complex permafrost of MIS5 age in the Dmitry Laptev Strait coastal region (East Siberian Arctic) S. Wetterich et al. 10.1016/j.quascirev.2015.11.016
- Bacterial communities in ancient permafrost profiles of Svalbard, Arctic P. Singh et al. 10.1002/jobm.201700061
- Microbial survival strategies in ancient permafrost: insights from metagenomics R. Mackelprang et al. 10.1038/ismej.2017.93