DataSheet1_Mercury in Sediment Core Samples From Deep Siberian Ice-Rich Permafrost.docx
We determine Hg concentrations of various deposits in Siberia’s deep permafrost and link sediment properties and Hg enrichment to establish a first Hg inventory of late Pleistocene permafrost down to a depth of 36 m below surface. As Arctic warming is transforming the ice-rich permafrost of Siberia,...
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Online Access: | https://doi.org/10.3389/feart.2021.718153.s001 |
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ftsmithonian:oai:figshare.com:article/18095915 2023-05-15T14:45:04+02:00 DataSheet1_Mercury in Sediment Core Samples From Deep Siberian Ice-Rich Permafrost.docx Clara Rutkowski (11925545) Josefine Lenz (11925548) Andreas Lang (2344762) Juliane Wolter (11925551) Sibylle Mothes (1664602) Thorsten Reemtsma (1506211) Guido Grosse (6270902) Mathias Ulrich (11258412) Matthias Fuchs (131037) Lutz Schirrmeister (5496662) Alexander Fedorov (1623637) Mikhail Grigoriev (11080518) Hugues Lantuit (507384) Jens Strauss (5496671) 2022-01-10T08:54:01Z https://doi.org/10.3389/feart.2021.718153.s001 unknown https://figshare.com/articles/dataset/DataSheet1_Mercury_in_Sediment_Core_Samples_From_Deep_Siberian_Ice-Rich_Permafrost_docx/18095915 doi:10.3389/feart.2021.718153.s001 CC BY 4.0 CC-BY Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change arctic pollutants heavy metal arctic warming polar regions Dataset 2022 ftsmithonian https://doi.org/10.3389/feart.2021.718153.s001 2022-01-21T13:33:17Z We determine Hg concentrations of various deposits in Siberia’s deep permafrost and link sediment properties and Hg enrichment to establish a first Hg inventory of late Pleistocene permafrost down to a depth of 36 m below surface. As Arctic warming is transforming the ice-rich permafrost of Siberia, sediment is released and increases the flux of particulates to the Arctic shelf seas through thawing coasts, lakeshores, and river floodplains. Heavy metals within soils and sediments are also released and may increasingly enter Arctic waters and the biological food chain. High levels of mercury (Hg) have been reported from shallow soils across the Arctic. Rapid thawing is now mobilizing sediment from deeper strata, but so far little is known about Hg concentrations in deep permafrost. Here, forty-one samples from sediment successions at seven sites and of different states of permafrost degradation on Bykovsky Peninsula (northern Yakutian coast) and in the Yukechi Alas region (Central Yakutia) were analyzed for Hg, total carbon, total nitrogen, and total organic carbon as well as grain-size distribution, bulk density, and mass specific magnetic susceptibility. We show average Hg concentrations of 9.72 ± 9.28 μg kg −1 in the deep sediments, an amount comparable to the few previous Arctic studies existing, and a significant correlation of Hg content with total organic carbon, total nitrogen, grain-size distribution, and mass specific magnetic susceptibility. Hg concentrations are higher in the generally sandier sediments of the Bykovsky Peninsula than in the siltier sediments of the Yukechi Alas. The ratio of Hg to total organic carbon in this study is 2.57 g kg −1 , including samples with very low carbon content. We conclude that many deep permafrost sediments, some of which have been frozen for millennia, contain elevated concentrations of Hg and the stock of Hg ready to be released by erosion is of significance for the Arctic ecosystem. The Hg mobilized may accumulate on the way to or in the shallow sea, and where it enters into active biogeochemical cycles of aquatic systems it may concentrate in food webs. Our study highlights the need for better understanding Hg stocks and Hg release from permafrost. Dataset Arctic Climate change Ice Magnetic susceptibility permafrost Yakutia Siberia Unknown Arctic |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftsmithonian |
language |
unknown |
topic |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change arctic pollutants heavy metal arctic warming polar regions |
spellingShingle |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change arctic pollutants heavy metal arctic warming polar regions Clara Rutkowski (11925545) Josefine Lenz (11925548) Andreas Lang (2344762) Juliane Wolter (11925551) Sibylle Mothes (1664602) Thorsten Reemtsma (1506211) Guido Grosse (6270902) Mathias Ulrich (11258412) Matthias Fuchs (131037) Lutz Schirrmeister (5496662) Alexander Fedorov (1623637) Mikhail Grigoriev (11080518) Hugues Lantuit (507384) Jens Strauss (5496671) DataSheet1_Mercury in Sediment Core Samples From Deep Siberian Ice-Rich Permafrost.docx |
topic_facet |
Solid Earth Sciences Climate Science Atmospheric Sciences not elsewhere classified Exploration Geochemistry Inorganic Geochemistry Isotope Geochemistry Organic Geochemistry Geochemistry not elsewhere classified Igneous and Metamorphic Petrology Ore Deposit Petrology Palaeontology (incl. Palynology) Structural Geology Tectonics Volcanology Geology not elsewhere classified Seismology and Seismic Exploration Glaciology Hydrogeology Natural Hazards Quaternary Environments Earth Sciences not elsewhere classified Evolutionary Impacts of Climate Change arctic pollutants heavy metal arctic warming polar regions |
description |
We determine Hg concentrations of various deposits in Siberia’s deep permafrost and link sediment properties and Hg enrichment to establish a first Hg inventory of late Pleistocene permafrost down to a depth of 36 m below surface. As Arctic warming is transforming the ice-rich permafrost of Siberia, sediment is released and increases the flux of particulates to the Arctic shelf seas through thawing coasts, lakeshores, and river floodplains. Heavy metals within soils and sediments are also released and may increasingly enter Arctic waters and the biological food chain. High levels of mercury (Hg) have been reported from shallow soils across the Arctic. Rapid thawing is now mobilizing sediment from deeper strata, but so far little is known about Hg concentrations in deep permafrost. Here, forty-one samples from sediment successions at seven sites and of different states of permafrost degradation on Bykovsky Peninsula (northern Yakutian coast) and in the Yukechi Alas region (Central Yakutia) were analyzed for Hg, total carbon, total nitrogen, and total organic carbon as well as grain-size distribution, bulk density, and mass specific magnetic susceptibility. We show average Hg concentrations of 9.72 ± 9.28 μg kg −1 in the deep sediments, an amount comparable to the few previous Arctic studies existing, and a significant correlation of Hg content with total organic carbon, total nitrogen, grain-size distribution, and mass specific magnetic susceptibility. Hg concentrations are higher in the generally sandier sediments of the Bykovsky Peninsula than in the siltier sediments of the Yukechi Alas. The ratio of Hg to total organic carbon in this study is 2.57 g kg −1 , including samples with very low carbon content. We conclude that many deep permafrost sediments, some of which have been frozen for millennia, contain elevated concentrations of Hg and the stock of Hg ready to be released by erosion is of significance for the Arctic ecosystem. The Hg mobilized may accumulate on the way to or in the shallow sea, and where it enters into active biogeochemical cycles of aquatic systems it may concentrate in food webs. Our study highlights the need for better understanding Hg stocks and Hg release from permafrost. |
format |
Dataset |
author |
Clara Rutkowski (11925545) Josefine Lenz (11925548) Andreas Lang (2344762) Juliane Wolter (11925551) Sibylle Mothes (1664602) Thorsten Reemtsma (1506211) Guido Grosse (6270902) Mathias Ulrich (11258412) Matthias Fuchs (131037) Lutz Schirrmeister (5496662) Alexander Fedorov (1623637) Mikhail Grigoriev (11080518) Hugues Lantuit (507384) Jens Strauss (5496671) |
author_facet |
Clara Rutkowski (11925545) Josefine Lenz (11925548) Andreas Lang (2344762) Juliane Wolter (11925551) Sibylle Mothes (1664602) Thorsten Reemtsma (1506211) Guido Grosse (6270902) Mathias Ulrich (11258412) Matthias Fuchs (131037) Lutz Schirrmeister (5496662) Alexander Fedorov (1623637) Mikhail Grigoriev (11080518) Hugues Lantuit (507384) Jens Strauss (5496671) |
author_sort |
Clara Rutkowski (11925545) |
title |
DataSheet1_Mercury in Sediment Core Samples From Deep Siberian Ice-Rich Permafrost.docx |
title_short |
DataSheet1_Mercury in Sediment Core Samples From Deep Siberian Ice-Rich Permafrost.docx |
title_full |
DataSheet1_Mercury in Sediment Core Samples From Deep Siberian Ice-Rich Permafrost.docx |
title_fullStr |
DataSheet1_Mercury in Sediment Core Samples From Deep Siberian Ice-Rich Permafrost.docx |
title_full_unstemmed |
DataSheet1_Mercury in Sediment Core Samples From Deep Siberian Ice-Rich Permafrost.docx |
title_sort |
datasheet1_mercury in sediment core samples from deep siberian ice-rich permafrost.docx |
publishDate |
2022 |
url |
https://doi.org/10.3389/feart.2021.718153.s001 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Ice Magnetic susceptibility permafrost Yakutia Siberia |
genre_facet |
Arctic Climate change Ice Magnetic susceptibility permafrost Yakutia Siberia |
op_relation |
https://figshare.com/articles/dataset/DataSheet1_Mercury_in_Sediment_Core_Samples_From_Deep_Siberian_Ice-Rich_Permafrost_docx/18095915 doi:10.3389/feart.2021.718153.s001 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/feart.2021.718153.s001 |
_version_ |
1766316506847641600 |