Analysis of the late Pleistocene cyclic ice wedge complexes in the Mayn River Valley
We studied the structure and composition of Late Pleistocene cyclic ice wedge complexes in the Mayn River Valley and syngenetic ice wedges in adjacent areas of the Southern Chukchi Peninsula. Analysis of stable isotopes (δ18O and δD) and major ion chemistry of ice, as well as radiocarbon ages and po...
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Language: | English |
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PANGAEA
2020
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.915033 https://doi.org/10.1594/PANGAEA.915033 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.915033 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
deuterium heavy oxygen Holocene Ice wedges Late Pleistocene Mayn River permafrost pollen and spores radiocarbon Southern Chukchi Peninsula Stable isotopes |
spellingShingle |
deuterium heavy oxygen Holocene Ice wedges Late Pleistocene Mayn River permafrost pollen and spores radiocarbon Southern Chukchi Peninsula Stable isotopes Vasil'chuk, Yurij K Vasil'chuk, Alla Constantinovna Analysis of the late Pleistocene cyclic ice wedge complexes in the Mayn River Valley |
topic_facet |
deuterium heavy oxygen Holocene Ice wedges Late Pleistocene Mayn River permafrost pollen and spores radiocarbon Southern Chukchi Peninsula Stable isotopes |
description |
We studied the structure and composition of Late Pleistocene cyclic ice wedge complexes in the Mayn River Valley and syngenetic ice wedges in adjacent areas of the Southern Chukchi Peninsula. Analysis of stable isotopes (δ18O and δD) and major ion chemistry of ice, as well as radiocarbon ages and pollen spectra of the host sediments, allowed detailed quantitative evaluation of changes in Late Pleistocene permafrost and climate conditions of the area, between 38 and 12 Kyr BP. The study has confirmed the previous inference that winters were much colder than now in the latest Pleistocene and rather severe during the Holocene optimum. The sediments have been dated by the radiocarbon (14C) method (Kotov and Ryabchun, 1986) in Magadan (North East Science Center, Far East Branch, Russian Academy) , which places exact time constraints on the yedoma history. Winter mean (twint.mean) and January (tJ) air temperature means for the Southern Chukchi Peninsula were inferred by comparing the oxygen isotope composition of present growing ice wedges (δ18Opiw) and winter temperatures for the period of their growth, were calculated using equation: tJ = 1.5 δ18Opiw (±3 °C), twint.mean = δ18Opiw (±2 °C). Mean annual ground temperatures were calculated using reconstructions of mean summer temperature by the technique of A. Vasil'chuk (2007) and of mean winter temperature by the technique of Yu. Vasil'chuk (1989). Analysis of major ion chemistry of ice - titration methods (titrimetric methods) are based on determining the quantity of a reagent of known concentration that is required to react completely with the analyte. Isotopic analyses were made in the isotope laboratory of the Institute of Geology of Estonia (Prof. R. Vaikmäe) using mass-spectrometer Finnigan Delta-E and in the Hannover Isotope Laboratory, Geological Survey of Lower Saxony (Prof. M.A. Geyh). |
format |
Dataset |
author |
Vasil'chuk, Yurij K Vasil'chuk, Alla Constantinovna |
author_facet |
Vasil'chuk, Yurij K Vasil'chuk, Alla Constantinovna |
author_sort |
Vasil'chuk, Yurij K |
title |
Analysis of the late Pleistocene cyclic ice wedge complexes in the Mayn River Valley |
title_short |
Analysis of the late Pleistocene cyclic ice wedge complexes in the Mayn River Valley |
title_full |
Analysis of the late Pleistocene cyclic ice wedge complexes in the Mayn River Valley |
title_fullStr |
Analysis of the late Pleistocene cyclic ice wedge complexes in the Mayn River Valley |
title_full_unstemmed |
Analysis of the late Pleistocene cyclic ice wedge complexes in the Mayn River Valley |
title_sort |
analysis of the late pleistocene cyclic ice wedge complexes in the mayn river valley |
publisher |
PANGAEA |
publishDate |
2020 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.915033 https://doi.org/10.1594/PANGAEA.915033 |
op_coverage |
MEDIAN LATITUDE: 64.841858 * MEDIAN LONGITUDE: 174.382939 * SOUTH-BOUND LATITUDE: 62.083300 * WEST-BOUND LONGITUDE: 168.656655 * NORTH-BOUND LATITUDE: 69.784675 * EAST-BOUND LONGITUDE: 177.519400 |
long_lat |
ENVELOPE(150.803,150.803,59.564,59.564) ENVELOPE(172.240,172.240,65.119,65.119) ENVELOPE(168.656655,177.519400,69.784675,62.083300) |
geographic |
Magadan Mayn |
geographic_facet |
Magadan Mayn |
genre |
Chukchi Chukchi Peninsula Ice permafrost wedge* |
genre_facet |
Chukchi Chukchi Peninsula Ice permafrost wedge* |
op_relation |
Vasil'chuk, Yurij K; Vasil'chuk, Alla Constantinovna (2017): Ice wedges in the Mayn river valley and winter air paleotemperatures in the Southern Chukchi Peninsula at 38-12 Kyr BP. Earth's Cryosphere, 21(3), https://doi.org/10.21782/ec1560-7496-2017-5(24-35) Kotov, A N (1998): Permafrost ridges in the Tanyurer River (Chukchi Peninsula). Kriosfera Zemli II, 4, 62-71 Vasil'chuk, Alla Constantinovna (2007): Palynology and Chronology of Polygonal Ice Wedge Complexes in the Russian Permafrost Area [in Russian]. Moscow University Press, Moscow, 488 pp. Vasil'chuk, Yurij K (1989): The formation conditions of Late Pleistocene and Holocene wedge ice of Chukotka (isotope - cryolithochronological analysis). Dokl. Akad. Nauk SSSR, 309(4), 920-924 Vasil'chuk, Yurij K (1992): Oxygen Isotope Composition of Ground Ice (Application to Paleogeocryological Reconstructions) [in Russian]. Theor. Probl. Dept., RAS, Moscow University, Research Institute of Engineering for Construction (PNIIIS), Moscow (Volume 1, 420 pp., Volume 2, 264 pp.) https://doi.pangaea.de/10.1594/PANGAEA.915033 https://doi.org/10.1594/PANGAEA.915033 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.915033 https://doi.org/10.21782/ec1560-7496-2017-5(24-35 |
_version_ |
1766389750506192896 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.915033 2023-05-15T15:54:32+02:00 Analysis of the late Pleistocene cyclic ice wedge complexes in the Mayn River Valley Vasil'chuk, Yurij K Vasil'chuk, Alla Constantinovna MEDIAN LATITUDE: 64.841858 * MEDIAN LONGITUDE: 174.382939 * SOUTH-BOUND LATITUDE: 62.083300 * WEST-BOUND LONGITUDE: 168.656655 * NORTH-BOUND LATITUDE: 69.784675 * EAST-BOUND LONGITUDE: 177.519400 2020-04-21 application/zip, 7 datasets https://doi.pangaea.de/10.1594/PANGAEA.915033 https://doi.org/10.1594/PANGAEA.915033 en eng PANGAEA Vasil'chuk, Yurij K; Vasil'chuk, Alla Constantinovna (2017): Ice wedges in the Mayn river valley and winter air paleotemperatures in the Southern Chukchi Peninsula at 38-12 Kyr BP. Earth's Cryosphere, 21(3), https://doi.org/10.21782/ec1560-7496-2017-5(24-35) Kotov, A N (1998): Permafrost ridges in the Tanyurer River (Chukchi Peninsula). Kriosfera Zemli II, 4, 62-71 Vasil'chuk, Alla Constantinovna (2007): Palynology and Chronology of Polygonal Ice Wedge Complexes in the Russian Permafrost Area [in Russian]. Moscow University Press, Moscow, 488 pp. Vasil'chuk, Yurij K (1989): The formation conditions of Late Pleistocene and Holocene wedge ice of Chukotka (isotope - cryolithochronological analysis). Dokl. Akad. Nauk SSSR, 309(4), 920-924 Vasil'chuk, Yurij K (1992): Oxygen Isotope Composition of Ground Ice (Application to Paleogeocryological Reconstructions) [in Russian]. Theor. Probl. Dept., RAS, Moscow University, Research Institute of Engineering for Construction (PNIIIS), Moscow (Volume 1, 420 pp., Volume 2, 264 pp.) https://doi.pangaea.de/10.1594/PANGAEA.915033 https://doi.org/10.1594/PANGAEA.915033 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY deuterium heavy oxygen Holocene Ice wedges Late Pleistocene Mayn River permafrost pollen and spores radiocarbon Southern Chukchi Peninsula Stable isotopes Dataset 2020 ftpangaea https://doi.org/10.1594/PANGAEA.915033 https://doi.org/10.21782/ec1560-7496-2017-5(24-35 2023-01-20T07:34:32Z We studied the structure and composition of Late Pleistocene cyclic ice wedge complexes in the Mayn River Valley and syngenetic ice wedges in adjacent areas of the Southern Chukchi Peninsula. Analysis of stable isotopes (δ18O and δD) and major ion chemistry of ice, as well as radiocarbon ages and pollen spectra of the host sediments, allowed detailed quantitative evaluation of changes in Late Pleistocene permafrost and climate conditions of the area, between 38 and 12 Kyr BP. The study has confirmed the previous inference that winters were much colder than now in the latest Pleistocene and rather severe during the Holocene optimum. The sediments have been dated by the radiocarbon (14C) method (Kotov and Ryabchun, 1986) in Magadan (North East Science Center, Far East Branch, Russian Academy) , which places exact time constraints on the yedoma history. Winter mean (twint.mean) and January (tJ) air temperature means for the Southern Chukchi Peninsula were inferred by comparing the oxygen isotope composition of present growing ice wedges (δ18Opiw) and winter temperatures for the period of their growth, were calculated using equation: tJ = 1.5 δ18Opiw (±3 °C), twint.mean = δ18Opiw (±2 °C). Mean annual ground temperatures were calculated using reconstructions of mean summer temperature by the technique of A. Vasil'chuk (2007) and of mean winter temperature by the technique of Yu. Vasil'chuk (1989). Analysis of major ion chemistry of ice - titration methods (titrimetric methods) are based on determining the quantity of a reagent of known concentration that is required to react completely with the analyte. Isotopic analyses were made in the isotope laboratory of the Institute of Geology of Estonia (Prof. R. Vaikmäe) using mass-spectrometer Finnigan Delta-E and in the Hannover Isotope Laboratory, Geological Survey of Lower Saxony (Prof. M.A. Geyh). Dataset Chukchi Chukchi Peninsula Ice permafrost wedge* PANGAEA - Data Publisher for Earth & Environmental Science Magadan ENVELOPE(150.803,150.803,59.564,59.564) Mayn ENVELOPE(172.240,172.240,65.119,65.119) ENVELOPE(168.656655,177.519400,69.784675,62.083300) |