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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2020
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| Online Access: | https://doi.org/10.1594/PANGAEA.919481 |
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| _version_ | 1867171374651408384 |
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| author | Vasil'chuk, Alla Constantinovna Kim, Jong-Chan Vasil'chuk, Yurij K |
| author_facet | Vasil'chuk, Alla Constantinovna Kim, Jong-Chan Vasil'chuk, Yurij K |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Accelerator mass spectrometry (AMS) radiocarbon dates of pollen concentrate were obtained from multistage syngenetic ice wedges of cross-sections from the Late Pleistocene Bison site, located along the Lower Kolyma River (68°34'N, 158°34'E), from ∼43,600 to ∼26,200 BP, and 3 AMS ¹⁴C dates of pollen concentrate in ice wedges from the Seyaha site cross-section, located on the east coast of the Yamal Peninsula (70°10'N, 72°34'E), from ∼22,400 to ∼25,200 BP. Pollen concentrate samples were prepared using a special pretreatment procedure. Pollen and spores from ice-wedge ice signalize a regional pollen rain. Therefore, ¹⁴C-dated extracts of pollen and spores from ice-wedge ice enable an adequate reconstruction and chronology of landscape dynamics on a regional scale. The pollen and spores were well preserved despite numerous redepositions in the penecontemporaneous structure in which they were found. Thus, a comparison with dates on other fractions from the same sample is necessary. The youngest date is the most reliable among the intersample AMS ¹⁴C dates from the ice and permafrost sediments. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_919481 |
| institution | PANGAEA |
| language | en |
| publishDate | 2020 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | AMS ¹⁴C Dating of Pollen Concentrate from Late Pleistocene Iсe Wedges from the Bison and Seyaha Sites in Siberia Vasil'chuk, Alla Constantinovna Kim, Jong-Chan Vasil'chuk, Yurij K 14C age; Iсe wedges; Late Pleistocene; Pollen; stable isotope composition Accelerator mass spectrometry (AMS) radiocarbon dates of pollen concentrate were obtained from multistage syngenetic ice wedges of cross-sections from the Late Pleistocene Bison site, located along the Lower Kolyma River (68°34'N, 158°34'E), from ∼43,600 to ∼26,200 BP, and 3 AMS ¹⁴C dates of pollen concentrate in ice wedges from the Seyaha site cross-section, located on the east coast of the Yamal Peninsula (70°10'N, 72°34'E), from ∼22,400 to ∼25,200 BP. Pollen concentrate samples were prepared using a special pretreatment procedure. Pollen and spores from ice-wedge ice signalize a regional pollen rain. Therefore, ¹⁴C-dated extracts of pollen and spores from ice-wedge ice enable an adequate reconstruction and chronology of landscape dynamics on a regional scale. The pollen and spores were well preserved despite numerous redepositions in the penecontemporaneous structure in which they were found. Thus, a comparison with dates on other fractions from the same sample is necessary. The youngest date is the most reliable among the intersample AMS ¹⁴C dates from the ice and permafrost sediments. |
| title | AMS ¹⁴C Dating of Pollen Concentrate from Late Pleistocene Iсe Wedges from the Bison and Seyaha Sites in Siberia |
| topic | 14C age; Iсe wedges; Late Pleistocene; Pollen; stable isotope composition |
| url | https://doi.org/10.1594/PANGAEA.919481 |