KFU. Card publication. Holocene ice-wedge polygon development in northern Yukon permafrost peatlands (Canada)

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FEDERAL UNIVERSITY

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HOLOCENE ICE-WEDGE POLYGON DEVELOPMENT IN NORTHERN YUKON PERMAFROST PEATLANDS (CANADA)

Form of presentation

Articles in international journals and collections

Year of publication

2016

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Authors, employees of KFU

Nazarova Larisa Borisovna, author

Palagushkina Olga Viktorovna, author

Other authors

Fritz Michael , author

Bibliographic description in the original language

Michael Fritz, Juliane Wolter, Natalia Rudaya, Olga Palagushkina, Lari-sa Nazarova, Jaroslav Obu, Janet Rethemeyer, Hugues Lantuit, Sebastian Wetterich Holocene ice-wedge polygon development in northern Yukon per-mafrost peatlands (Canada) Quaternary Science Reviews, Special Issue: PAST Gateways (Palaeo-Arctic Spatial and Temporal Gateways) Volume 147, 1 September 2016, Pages 279–297.- baza dannykh Scopus i Web of Science

Annotation

Ice-wedge polygon (IWP) mires in the Arctic and Subarctic are extremely vulnerable to climatic and environmental change. We present the results of a multidisciplinary paleoenvironmental study on IWPs in the northern Yukon, Canada. High-resolution laboratory analyses were carried out on a permafrost core and the overlying seasonally thawed (active) layer, from a low-centered IWP located in a drained lake basin on Herschel Island. In relation to 14 Accelerator Mass Spectrometry (AMS) radiocarbon dates spanning the last 5000 years, we report sedimentary data including grain size distribution and biogeochemical parameters (organic carbon, nitrogen, C/N ratio, δ13C), stable water isotopes (δ18O, δD), as well as fossil pollen, plant macrofossil and diatom assemblages. Three sediment units (SUs) correspond to the main stages of deposition (1) in a thermokarst lake (SU1: 4950 to 3950 cal yrs BP), (2) during transition from lacustrine to palustrine conditions after lake drainage (SU2: 3950 to 3

Keywords

Permafrost peatland, arctic, thermokarst, talik, ice-wedge polygon, pollen, diatoms, plant macrofossils, stable water isotopes, deuterium excess

The name of the journal

QUATERNARY SCI REV

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=141697&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Nazarova Larisa Borisovna	ru_RU
dc.contributor.author	Palagushkina Olga Viktorovna	ru_RU
dc.contributor.author	Fritz Michael	ru_RU
dc.date.accessioned	2016-01-01T00:00:00Z	ru_RU
dc.date.available	2016-01-01T00:00:00Z	ru_RU
dc.date.issued	2016	ru_RU
dc.identifier.citation	Michael Fritz, Juliane Wolter, Natalia Rudaya, Olga Palagushkina, Lari-sa Nazarova, Jaroslav Obu, Janet Rethemeyer, Hugues Lantuit, Sebastian Wetterich Holocene ice-wedge polygon development in northern Yukon per-mafrost peatlands (Canada) Quaternary Science Reviews, Special Issue: PAST Gateways (Palaeo-Arctic Spatial and Temporal Gateways) Volume 147, 1 September 2016, Pages 279–297.- �� Scopus � Web of Science	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=141697&p_lang=2	ru_RU
dc.description.abstract	QUATERNARY SCI REV	ru_RU
dc.description.abstract	Ice-wedge polygon (IWP) mires in the Arctic and Subarctic are extremely vulnerable to climatic and environmental change. We present the results of a multidisciplinary paleoenvironmental study on IWPs in the northern Yukon, Canada. High-resolution laboratory analyses were carried out on a permafrost core and the overlying seasonally thawed (active) layer, from a low-centered IWP located in a drained lake basin on Herschel Island. In relation to 14 Accelerator Mass Spectrometry (AMS) radiocarbon dates spanning the last 5000 years, we report sedimentary data including grain size distribution and biogeochemical parameters (organic carbon, nitrogen, C/N ratio, δ13C), stable water isotopes (δ18O, δD), as well as fossil pollen, plant macrofossil and diatom assemblages. Three sediment units (SUs) correspond to the main stages of deposition (1) in a thermokarst lake (SU1: 4950 to 3950 cal yrs BP), (2) during transition from lacustrine to palustrine conditions after lake drainage (SU2: 3950 to 3	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Permafrost peatland	ru_RU
dc.subject	arctic	ru_RU
dc.subject	thermokarst	ru_RU
dc.subject	talik	ru_RU
dc.subject	ice-wedge polygon	ru_RU
dc.subject	pollen	ru_RU
dc.subject	diatoms	ru_RU
dc.subject	plant macrofossils	ru_RU
dc.subject	stable water isotopes	ru_RU
dc.subject	deuterium excess	ru_RU
dc.title	Holocene ice-wedge polygon development in northern Yukon permafrost peatlands (Canada)	ru_RU
dc.type	Articles in international journals and collections	ru_RU