Sedimentology, biogeochemistry stable isotopes, pollen, plant macrofossils, and diatoms from two sediments cores from the northern Yukon permafrost peatlands (Canada), supplement to: Fritz, Michael; Wolter, Juliane; Rudaya, Natalia; Palagushkina, Olga V; Nazarova, Larisa B; Obu, Jaroslav; Rethemeyer, Janet; Lantuit, Hugues; Wetterich, Sebastian (2016): Holocene ice-wedge polygon development in northern Yukon permafrost peatlands (Canada). Quaternary Science Reviews, 147, 279-297
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...
Main Authors: | , , , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
PANGAEA - Data Publisher for Earth & Environmental Science
2016
|
Subjects: | |
Online Access: | https://dx.doi.org/10.1594/pangaea.856781 https://doi.pangaea.de/10.1594/PANGAEA.856781 |
id |
ftdatacite:10.1594/pangaea.856781 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.1594/pangaea.856781 2023-05-15T15:19:23+02:00 Sedimentology, biogeochemistry stable isotopes, pollen, plant macrofossils, and diatoms from two sediments cores from the northern Yukon permafrost peatlands (Canada), supplement to: Fritz, Michael; Wolter, Juliane; Rudaya, Natalia; Palagushkina, Olga V; Nazarova, Larisa B; Obu, Jaroslav; Rethemeyer, Janet; Lantuit, Hugues; Wetterich, Sebastian (2016): Holocene ice-wedge polygon development in northern Yukon permafrost peatlands (Canada). Quaternary Science Reviews, 147, 279-297 Fritz, Michael Wolter, Juliane Rudaya, Natalia Palagushkina, Olga V Nazarova, Larisa B Obu, Jaroslav Rethemeyer, Janet Lantuit, Hugues Wetterich, Sebastian 2016 application/zip https://dx.doi.org/10.1594/pangaea.856781 https://doi.pangaea.de/10.1594/PANGAEA.856781 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/j.quascirev.2016.02.008 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn Supplementary Collection of Datasets Collection article 2016 ftdatacite https://doi.org/10.1594/pangaea.856781 https://doi.org/10.1016/j.quascirev.2016.02.008 2022-02-08T13:42:09Z 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, d13C), stable water isotopes (d18O, dD), 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 3120 cal yrs BP), and (3) in palustrine conditions in the IWP field that developed after drainage (SU3: 3120 cal yrs BP to AD 2012). The lacustrine phase (pre 3950 cal yrs BP) is characterized by planktonic-benthic and pioneer diatoms species indicating circumneutral waters, and very few plant macrofossils. The pollen record has captured a regional signal of relatively stable vegetation composition and climate for the lacustrine stage of the record until 3950 cal yrs BP. Palustrine conditions with benthic and acidophilic species characterize the peaty shallow-water environments of the low-centered IWP. The transition from lacustrine to palustrine conditions was accompanied by acidification and rapid revegetation of the lake bottom within about 100 years. Since the palustrine phase we consider the pollen record as a local vegetation proxy dominated by the plant communities growing in the IWP. Ice-wedge cracking in water-saturated sediments started immediately after lake drainage at about 3950 cal yrs BP and led to the formation of an IWP mire. Permafrost aggradation through downward closed-system freezing of the lake talik is indicated by the stable water isotope record. The originally submerged IWP center underwent gradual drying during the past 2000 years. This study highlights the sensitivity of permafrost landscapes to climate and environmental change throughout the Holocene. Article in Journal/Newspaper Arctic Herschel Herschel Island Ice permafrost Subarctic Talik Thermokarst wedge* Yukon DataCite Metadata Store (German National Library of Science and Technology) Arctic Canada Herschel Island ENVELOPE(-139.089,-139.089,69.583,69.583) Nazarova ENVELOPE(161.250,161.250,-81.917,-81.917) Talik ENVELOPE(146.601,146.601,59.667,59.667) Yukon |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn |
spellingShingle |
Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn Fritz, Michael Wolter, Juliane Rudaya, Natalia Palagushkina, Olga V Nazarova, Larisa B Obu, Jaroslav Rethemeyer, Janet Lantuit, Hugues Wetterich, Sebastian Sedimentology, biogeochemistry stable isotopes, pollen, plant macrofossils, and diatoms from two sediments cores from the northern Yukon permafrost peatlands (Canada), supplement to: Fritz, Michael; Wolter, Juliane; Rudaya, Natalia; Palagushkina, Olga V; Nazarova, Larisa B; Obu, Jaroslav; Rethemeyer, Janet; Lantuit, Hugues; Wetterich, Sebastian (2016): Holocene ice-wedge polygon development in northern Yukon permafrost peatlands (Canada). Quaternary Science Reviews, 147, 279-297 |
topic_facet |
Permafrost Research Periglacial Dynamics @ AWI AWI_PerDyn |
description |
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, d13C), stable water isotopes (d18O, dD), 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 3120 cal yrs BP), and (3) in palustrine conditions in the IWP field that developed after drainage (SU3: 3120 cal yrs BP to AD 2012). The lacustrine phase (pre 3950 cal yrs BP) is characterized by planktonic-benthic and pioneer diatoms species indicating circumneutral waters, and very few plant macrofossils. The pollen record has captured a regional signal of relatively stable vegetation composition and climate for the lacustrine stage of the record until 3950 cal yrs BP. Palustrine conditions with benthic and acidophilic species characterize the peaty shallow-water environments of the low-centered IWP. The transition from lacustrine to palustrine conditions was accompanied by acidification and rapid revegetation of the lake bottom within about 100 years. Since the palustrine phase we consider the pollen record as a local vegetation proxy dominated by the plant communities growing in the IWP. Ice-wedge cracking in water-saturated sediments started immediately after lake drainage at about 3950 cal yrs BP and led to the formation of an IWP mire. Permafrost aggradation through downward closed-system freezing of the lake talik is indicated by the stable water isotope record. The originally submerged IWP center underwent gradual drying during the past 2000 years. This study highlights the sensitivity of permafrost landscapes to climate and environmental change throughout the Holocene. |
format |
Article in Journal/Newspaper |
author |
Fritz, Michael Wolter, Juliane Rudaya, Natalia Palagushkina, Olga V Nazarova, Larisa B Obu, Jaroslav Rethemeyer, Janet Lantuit, Hugues Wetterich, Sebastian |
author_facet |
Fritz, Michael Wolter, Juliane Rudaya, Natalia Palagushkina, Olga V Nazarova, Larisa B Obu, Jaroslav Rethemeyer, Janet Lantuit, Hugues Wetterich, Sebastian |
author_sort |
Fritz, Michael |
title |
Sedimentology, biogeochemistry stable isotopes, pollen, plant macrofossils, and diatoms from two sediments cores from the northern Yukon permafrost peatlands (Canada), supplement to: Fritz, Michael; Wolter, Juliane; Rudaya, Natalia; Palagushkina, Olga V; Nazarova, Larisa B; Obu, Jaroslav; Rethemeyer, Janet; Lantuit, Hugues; Wetterich, Sebastian (2016): Holocene ice-wedge polygon development in northern Yukon permafrost peatlands (Canada). Quaternary Science Reviews, 147, 279-297 |
title_short |
Sedimentology, biogeochemistry stable isotopes, pollen, plant macrofossils, and diatoms from two sediments cores from the northern Yukon permafrost peatlands (Canada), supplement to: Fritz, Michael; Wolter, Juliane; Rudaya, Natalia; Palagushkina, Olga V; Nazarova, Larisa B; Obu, Jaroslav; Rethemeyer, Janet; Lantuit, Hugues; Wetterich, Sebastian (2016): Holocene ice-wedge polygon development in northern Yukon permafrost peatlands (Canada). Quaternary Science Reviews, 147, 279-297 |
title_full |
Sedimentology, biogeochemistry stable isotopes, pollen, plant macrofossils, and diatoms from two sediments cores from the northern Yukon permafrost peatlands (Canada), supplement to: Fritz, Michael; Wolter, Juliane; Rudaya, Natalia; Palagushkina, Olga V; Nazarova, Larisa B; Obu, Jaroslav; Rethemeyer, Janet; Lantuit, Hugues; Wetterich, Sebastian (2016): Holocene ice-wedge polygon development in northern Yukon permafrost peatlands (Canada). Quaternary Science Reviews, 147, 279-297 |
title_fullStr |
Sedimentology, biogeochemistry stable isotopes, pollen, plant macrofossils, and diatoms from two sediments cores from the northern Yukon permafrost peatlands (Canada), supplement to: Fritz, Michael; Wolter, Juliane; Rudaya, Natalia; Palagushkina, Olga V; Nazarova, Larisa B; Obu, Jaroslav; Rethemeyer, Janet; Lantuit, Hugues; Wetterich, Sebastian (2016): Holocene ice-wedge polygon development in northern Yukon permafrost peatlands (Canada). Quaternary Science Reviews, 147, 279-297 |
title_full_unstemmed |
Sedimentology, biogeochemistry stable isotopes, pollen, plant macrofossils, and diatoms from two sediments cores from the northern Yukon permafrost peatlands (Canada), supplement to: Fritz, Michael; Wolter, Juliane; Rudaya, Natalia; Palagushkina, Olga V; Nazarova, Larisa B; Obu, Jaroslav; Rethemeyer, Janet; Lantuit, Hugues; Wetterich, Sebastian (2016): Holocene ice-wedge polygon development in northern Yukon permafrost peatlands (Canada). Quaternary Science Reviews, 147, 279-297 |
title_sort |
sedimentology, biogeochemistry stable isotopes, pollen, plant macrofossils, and diatoms from two sediments cores from the northern yukon permafrost peatlands (canada), supplement to: fritz, michael; wolter, juliane; rudaya, natalia; palagushkina, olga v; nazarova, larisa b; obu, jaroslav; rethemeyer, janet; lantuit, hugues; wetterich, sebastian (2016): holocene ice-wedge polygon development in northern yukon permafrost peatlands (canada). quaternary science reviews, 147, 279-297 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2016 |
url |
https://dx.doi.org/10.1594/pangaea.856781 https://doi.pangaea.de/10.1594/PANGAEA.856781 |
long_lat |
ENVELOPE(-139.089,-139.089,69.583,69.583) ENVELOPE(161.250,161.250,-81.917,-81.917) ENVELOPE(146.601,146.601,59.667,59.667) |
geographic |
Arctic Canada Herschel Island Nazarova Talik Yukon |
geographic_facet |
Arctic Canada Herschel Island Nazarova Talik Yukon |
genre |
Arctic Herschel Herschel Island Ice permafrost Subarctic Talik Thermokarst wedge* Yukon |
genre_facet |
Arctic Herschel Herschel Island Ice permafrost Subarctic Talik Thermokarst wedge* Yukon |
op_relation |
https://dx.doi.org/10.1016/j.quascirev.2016.02.008 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.856781 https://doi.org/10.1016/j.quascirev.2016.02.008 |
_version_ |
1766349577415294976 |