n-Fatty acid composition per total organic carbon in a rapidly eroding permafrost cliff
Organic carbon (OC) stored in Arctic permafrost represents one of Earth’s largest and most vulnerable terrestrial carbon pools. Amplified climate warming across the Arctic results in widespread permafrost thaw. Permafrost deposits exposed at river cliffs and coasts are particularly susceptible to th...
Main Authors: | , , , , , , , , , , , , , , , |
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Format: | Dataset |
Language: | English |
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PANGAEA
2022
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.940136 https://doi.org/10.1594/PANGAEA.940136 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.940136 |
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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 |
10-methyl-fatty acid C14:0 per unit mass total organic carbon 10-methyl-fatty acid C16:0 10-methyl-fatty acid C17:0 10-methyl-fatty acid C18:0 12-methyl-fatty acid C16:0 12-methyl-fatty acid C18:0 3-hydroxyl-fatty acid C6:0 3-hydroxyl-fatty acid C7:0 3-hydroxyl-fatty acid C8:0 anteiso-fatty acid C11:0 anteiso-fatty acid C12:0 anteiso-fatty acid C13:0 anteiso-fatty acid C15:0 anteiso-fatty acid C17:0 anteiso-fatty acid C17:1 AWI Arctic Land Expedition Biomarker CACOON Carbon Changing Arctic Carbon cycle in the cOastal Ocean Near-shore cyclo-fatty acid C17 cyclo-fatty acid C19 erosion Event label fatty acid C16:1w5 fatty acid C16:1w7cis fatty acid C16:1w7trans fatty acid C18:1w7cis fatty acid C18:1w7trans |
spellingShingle |
10-methyl-fatty acid C14:0 per unit mass total organic carbon 10-methyl-fatty acid C16:0 10-methyl-fatty acid C17:0 10-methyl-fatty acid C18:0 12-methyl-fatty acid C16:0 12-methyl-fatty acid C18:0 3-hydroxyl-fatty acid C6:0 3-hydroxyl-fatty acid C7:0 3-hydroxyl-fatty acid C8:0 anteiso-fatty acid C11:0 anteiso-fatty acid C12:0 anteiso-fatty acid C13:0 anteiso-fatty acid C15:0 anteiso-fatty acid C17:0 anteiso-fatty acid C17:1 AWI Arctic Land Expedition Biomarker CACOON Carbon Changing Arctic Carbon cycle in the cOastal Ocean Near-shore cyclo-fatty acid C17 cyclo-fatty acid C19 erosion Event label fatty acid C16:1w5 fatty acid C16:1w7cis fatty acid C16:1w7trans fatty acid C18:1w7cis fatty acid C18:1w7trans Haugk, Charlotte Jongejans, Loeka Laura Mangelsdorf, Kai Fuchs, Matthias Ogneva, Olga Palmtag, Juri Mollenhauer, Gesine Mann, Paul James Overduin, Pier Paul Grosse, Guido Sanders, Tina Tuerena, Robyn E Schirrmeister, Lutz Wetterich, Sebastian Kizyakov, Alexander Strauss, Jens n-Fatty acid composition per total organic carbon in a rapidly eroding permafrost cliff |
topic_facet |
10-methyl-fatty acid C14:0 per unit mass total organic carbon 10-methyl-fatty acid C16:0 10-methyl-fatty acid C17:0 10-methyl-fatty acid C18:0 12-methyl-fatty acid C16:0 12-methyl-fatty acid C18:0 3-hydroxyl-fatty acid C6:0 3-hydroxyl-fatty acid C7:0 3-hydroxyl-fatty acid C8:0 anteiso-fatty acid C11:0 anteiso-fatty acid C12:0 anteiso-fatty acid C13:0 anteiso-fatty acid C15:0 anteiso-fatty acid C17:0 anteiso-fatty acid C17:1 AWI Arctic Land Expedition Biomarker CACOON Carbon Changing Arctic Carbon cycle in the cOastal Ocean Near-shore cyclo-fatty acid C17 cyclo-fatty acid C19 erosion Event label fatty acid C16:1w5 fatty acid C16:1w7cis fatty acid C16:1w7trans fatty acid C18:1w7cis fatty acid C18:1w7trans |
description |
Organic carbon (OC) stored in Arctic permafrost represents one of Earth’s largest and most vulnerable terrestrial carbon pools. Amplified climate warming across the Arctic results in widespread permafrost thaw. Permafrost deposits exposed at river cliffs and coasts are particularly susceptible to thawing processes. Accelerating erosion of terrestrial permafrost along shorelines leads to increased transfer of organic matter (OM) to nearshore waters. However, the amount of terrestrial permafrost carbon and nitrogen as well as the OM quality in these deposits are still poorly quantified. Here, we characterise the sources and the quality of OM supplied to the Lena River at a rapidly eroding permafrost river shoreline cliff in the eastern part of the delta (Sobo-Sise Island). Our multi-proxy approach captures bulk elemental, molecular geochemical and carbon isotopic analyses of late Pleistocene Yedoma permafrost and Holocene cover deposits, discontinuously spanning the last ~52 ka. We show that the ancient permafrost exposed in the Sobo-Sise cliff has a high organic carbon content (mean of about 5 wt%).We found that the OM quality, which we define as the intrinsic potential to further transformation, decomposition, and mineralization, is also high as inferred by the lipid biomarker inventory. The oldest sediments stem from Marine Isotope Stage (MIS) 3 interstadial deposits (dated to 52 to 28 cal kyr BP) and is overlaid by Last Glacial MIS 2 (dated to 28 to 15 cal ka BP) and Holocene MIS 1 (dated to 7–0 cal ka BP) deposits. The relatively high average chain length (ACL) index of n-alkanes along the cliff profile indicates a predominant contribution of vascular plants to the OM composition. The elevated ratio of iso and anteiso-branched FAs relative to long chain (C ≥ 20) n-FAs in the interstadial MIS 3 and the interglacial MIS 1 deposits, suggests stronger microbial activity and consequently higher input of bacterial biomass during these climatically warmer periods. The overall high carbon preference index (CPI) and ... |
format |
Dataset |
author |
Haugk, Charlotte Jongejans, Loeka Laura Mangelsdorf, Kai Fuchs, Matthias Ogneva, Olga Palmtag, Juri Mollenhauer, Gesine Mann, Paul James Overduin, Pier Paul Grosse, Guido Sanders, Tina Tuerena, Robyn E Schirrmeister, Lutz Wetterich, Sebastian Kizyakov, Alexander Strauss, Jens |
author_facet |
Haugk, Charlotte Jongejans, Loeka Laura Mangelsdorf, Kai Fuchs, Matthias Ogneva, Olga Palmtag, Juri Mollenhauer, Gesine Mann, Paul James Overduin, Pier Paul Grosse, Guido Sanders, Tina Tuerena, Robyn E Schirrmeister, Lutz Wetterich, Sebastian Kizyakov, Alexander Strauss, Jens |
author_sort |
Haugk, Charlotte |
title |
n-Fatty acid composition per total organic carbon in a rapidly eroding permafrost cliff |
title_short |
n-Fatty acid composition per total organic carbon in a rapidly eroding permafrost cliff |
title_full |
n-Fatty acid composition per total organic carbon in a rapidly eroding permafrost cliff |
title_fullStr |
n-Fatty acid composition per total organic carbon in a rapidly eroding permafrost cliff |
title_full_unstemmed |
n-Fatty acid composition per total organic carbon in a rapidly eroding permafrost cliff |
title_sort |
n-fatty acid composition per total organic carbon in a rapidly eroding permafrost cliff |
publisher |
PANGAEA |
publishDate |
2022 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.940136 https://doi.org/10.1594/PANGAEA.940136 |
op_coverage |
MEDIAN LATITUDE: 72.538530 * MEDIAN LONGITUDE: 128.280873 * SOUTH-BOUND LATITUDE: 72.538120 * WEST-BOUND LONGITUDE: 128.279830 * NORTH-BOUND LATITUDE: 72.538770 * EAST-BOUND LONGITUDE: 128.282670 * DATE/TIME START: 2018-07-14T00:00:00 * DATE/TIME END: 2018-07-18T00:00:00 |
long_lat |
ENVELOPE(128.279830,128.282670,72.538770,72.538120) |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic lena river permafrost |
genre_facet |
Arctic lena river permafrost |
op_relation |
https://doi.org/10.1594/PANGAEA.935672 Haugk, Charlotte; Jongejans, Loeka Laura; Mangelsdorf, Kai; Fuchs, Matthias; Ogneva, Olga; Palmtag, Juri; Mollenhauer, Gesine; Mann, Paul James; Overduin, Pier Paul; Grosse, Guido; Sanders, Tina; Tuerena, Robyn E; Schirrmeister, Lutz; Wetterich, Sebastian; Kizyakov, Alexander; Karger, Cornelia; Strauss, Jens (2022): Organic matter characteristics of a rapidly eroding permafrost cliff in NE Siberia (Lena Delta, Laptev Sea region). Biogeosciences, 19(7), 2079-2094, https://doi.org/10.5194/bg-19-2079-2022 https://doi.pangaea.de/10.1594/PANGAEA.940136 https://doi.org/10.1594/PANGAEA.940136 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.94013610.1594/PANGAEA.93567210.5194/bg-19-2079-2022 |
_version_ |
1800746311865073664 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.940136 2024-06-02T08:01:49+00:00 n-Fatty acid composition per total organic carbon in a rapidly eroding permafrost cliff Haugk, Charlotte Jongejans, Loeka Laura Mangelsdorf, Kai Fuchs, Matthias Ogneva, Olga Palmtag, Juri Mollenhauer, Gesine Mann, Paul James Overduin, Pier Paul Grosse, Guido Sanders, Tina Tuerena, Robyn E Schirrmeister, Lutz Wetterich, Sebastian Kizyakov, Alexander Strauss, Jens MEDIAN LATITUDE: 72.538530 * MEDIAN LONGITUDE: 128.280873 * SOUTH-BOUND LATITUDE: 72.538120 * WEST-BOUND LONGITUDE: 128.279830 * NORTH-BOUND LATITUDE: 72.538770 * EAST-BOUND LONGITUDE: 128.282670 * DATE/TIME START: 2018-07-14T00:00:00 * DATE/TIME END: 2018-07-18T00:00:00 2022 text/tab-separated-values, 923 data points https://doi.pangaea.de/10.1594/PANGAEA.940136 https://doi.org/10.1594/PANGAEA.940136 en eng PANGAEA https://doi.org/10.1594/PANGAEA.935672 Haugk, Charlotte; Jongejans, Loeka Laura; Mangelsdorf, Kai; Fuchs, Matthias; Ogneva, Olga; Palmtag, Juri; Mollenhauer, Gesine; Mann, Paul James; Overduin, Pier Paul; Grosse, Guido; Sanders, Tina; Tuerena, Robyn E; Schirrmeister, Lutz; Wetterich, Sebastian; Kizyakov, Alexander; Karger, Cornelia; Strauss, Jens (2022): Organic matter characteristics of a rapidly eroding permafrost cliff in NE Siberia (Lena Delta, Laptev Sea region). Biogeosciences, 19(7), 2079-2094, https://doi.org/10.5194/bg-19-2079-2022 https://doi.pangaea.de/10.1594/PANGAEA.940136 https://doi.org/10.1594/PANGAEA.940136 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess 10-methyl-fatty acid C14:0 per unit mass total organic carbon 10-methyl-fatty acid C16:0 10-methyl-fatty acid C17:0 10-methyl-fatty acid C18:0 12-methyl-fatty acid C16:0 12-methyl-fatty acid C18:0 3-hydroxyl-fatty acid C6:0 3-hydroxyl-fatty acid C7:0 3-hydroxyl-fatty acid C8:0 anteiso-fatty acid C11:0 anteiso-fatty acid C12:0 anteiso-fatty acid C13:0 anteiso-fatty acid C15:0 anteiso-fatty acid C17:0 anteiso-fatty acid C17:1 AWI Arctic Land Expedition Biomarker CACOON Carbon Changing Arctic Carbon cycle in the cOastal Ocean Near-shore cyclo-fatty acid C17 cyclo-fatty acid C19 erosion Event label fatty acid C16:1w5 fatty acid C16:1w7cis fatty acid C16:1w7trans fatty acid C18:1w7cis fatty acid C18:1w7trans Dataset 2022 ftpangaea https://doi.org/10.1594/PANGAEA.94013610.1594/PANGAEA.93567210.5194/bg-19-2079-2022 2024-05-07T23:45:54Z Organic carbon (OC) stored in Arctic permafrost represents one of Earth’s largest and most vulnerable terrestrial carbon pools. Amplified climate warming across the Arctic results in widespread permafrost thaw. Permafrost deposits exposed at river cliffs and coasts are particularly susceptible to thawing processes. Accelerating erosion of terrestrial permafrost along shorelines leads to increased transfer of organic matter (OM) to nearshore waters. However, the amount of terrestrial permafrost carbon and nitrogen as well as the OM quality in these deposits are still poorly quantified. Here, we characterise the sources and the quality of OM supplied to the Lena River at a rapidly eroding permafrost river shoreline cliff in the eastern part of the delta (Sobo-Sise Island). Our multi-proxy approach captures bulk elemental, molecular geochemical and carbon isotopic analyses of late Pleistocene Yedoma permafrost and Holocene cover deposits, discontinuously spanning the last ~52 ka. We show that the ancient permafrost exposed in the Sobo-Sise cliff has a high organic carbon content (mean of about 5 wt%).We found that the OM quality, which we define as the intrinsic potential to further transformation, decomposition, and mineralization, is also high as inferred by the lipid biomarker inventory. The oldest sediments stem from Marine Isotope Stage (MIS) 3 interstadial deposits (dated to 52 to 28 cal kyr BP) and is overlaid by Last Glacial MIS 2 (dated to 28 to 15 cal ka BP) and Holocene MIS 1 (dated to 7–0 cal ka BP) deposits. The relatively high average chain length (ACL) index of n-alkanes along the cliff profile indicates a predominant contribution of vascular plants to the OM composition. The elevated ratio of iso and anteiso-branched FAs relative to long chain (C ≥ 20) n-FAs in the interstadial MIS 3 and the interglacial MIS 1 deposits, suggests stronger microbial activity and consequently higher input of bacterial biomass during these climatically warmer periods. The overall high carbon preference index (CPI) and ... Dataset Arctic lena river permafrost PANGAEA - Data Publisher for Earth & Environmental Science Arctic ENVELOPE(128.279830,128.282670,72.538770,72.538120) |