Compositional patterns of lignin derived phenols in bottom sediments and subsea permafrost from the Buor-Khaya Bay
Current set contains data on the molecular composition of lignin derived phenols and organic carbon content in bottom sediments and subsea permafrost rocks from five sediment cores obtained in the Buor-Khaya Bay (Laptev Sea). The substantially irregular distribution of lignin concentration and ligni...
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2021
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ftdatacite:10.17632/7dfh5v7k8b.1 2023-05-15T17:07:15+02:00 Compositional patterns of lignin derived phenols in bottom sediments and subsea permafrost from the Buor-Khaya Bay Ulyantsev, Alexander 2021 https://dx.doi.org/10.17632/7dfh5v7k8b.1 https://data.mendeley.com/datasets/7dfh5v7k8b/1 unknown Mendeley https://dx.doi.org/10.17632/7dfh5v7k8b Creative Commons Attribution 4.0 International info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Organic Geochemistry Carbon Lithology dataset Dataset 2021 ftdatacite https://doi.org/10.17632/7dfh5v7k8b.1 https://doi.org/10.17632/7dfh5v7k8b 2021-11-05T12:55:41Z Current set contains data on the molecular composition of lignin derived phenols and organic carbon content in bottom sediments and subsea permafrost rocks from five sediment cores obtained in the Buor-Khaya Bay (Laptev Sea). The substantially irregular distribution of lignin concentration and lignin-based molecular proxies revealed in the investigated samples reflect drastic environmental and depositional changes in the study area of the Laptev Sea. The increased OC content (2–5%) at some horizons and the highest concentrations (up to 23%) are related to the presence of vegetable residues such as wood and moss. Riverine flux and coastal thermoabrasion are considerable in lignin supply. Vanillyl and syringyl phenols dominate the lignin pool. Gymnosperm wood accounts for a significant fraction of the lignin. Concentration of lignin in sediments varies in five orders of magnitude. Strong share of lignin consists of biochemically unaltered compounds. Distribution of specific lignin phenols and related ratios coupled with lithology and grain size revealed that fluvial processes have been leading here. The substantial lignin stock revealed in this study represents an important portion of the terrestrial OC pool in subsea permafrost. The presence of biochemically intact OM in the gradually thawing subsea cryolithozone warrants further investigation. Dataset laptev Laptev Sea permafrost DataCite Metadata Store (German National Library of Science and Technology) Buor-Khaya ENVELOPE(127.803,127.803,72.287,72.287) Khaya ENVELOPE(135.167,135.167,60.567,60.567) Laptev Sea |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Organic Geochemistry Carbon Lithology |
spellingShingle |
Organic Geochemistry Carbon Lithology Ulyantsev, Alexander Compositional patterns of lignin derived phenols in bottom sediments and subsea permafrost from the Buor-Khaya Bay |
topic_facet |
Organic Geochemistry Carbon Lithology |
description |
Current set contains data on the molecular composition of lignin derived phenols and organic carbon content in bottom sediments and subsea permafrost rocks from five sediment cores obtained in the Buor-Khaya Bay (Laptev Sea). The substantially irregular distribution of lignin concentration and lignin-based molecular proxies revealed in the investigated samples reflect drastic environmental and depositional changes in the study area of the Laptev Sea. The increased OC content (2–5%) at some horizons and the highest concentrations (up to 23%) are related to the presence of vegetable residues such as wood and moss. Riverine flux and coastal thermoabrasion are considerable in lignin supply. Vanillyl and syringyl phenols dominate the lignin pool. Gymnosperm wood accounts for a significant fraction of the lignin. Concentration of lignin in sediments varies in five orders of magnitude. Strong share of lignin consists of biochemically unaltered compounds. Distribution of specific lignin phenols and related ratios coupled with lithology and grain size revealed that fluvial processes have been leading here. The substantial lignin stock revealed in this study represents an important portion of the terrestrial OC pool in subsea permafrost. The presence of biochemically intact OM in the gradually thawing subsea cryolithozone warrants further investigation. |
format |
Dataset |
author |
Ulyantsev, Alexander |
author_facet |
Ulyantsev, Alexander |
author_sort |
Ulyantsev, Alexander |
title |
Compositional patterns of lignin derived phenols in bottom sediments and subsea permafrost from the Buor-Khaya Bay |
title_short |
Compositional patterns of lignin derived phenols in bottom sediments and subsea permafrost from the Buor-Khaya Bay |
title_full |
Compositional patterns of lignin derived phenols in bottom sediments and subsea permafrost from the Buor-Khaya Bay |
title_fullStr |
Compositional patterns of lignin derived phenols in bottom sediments and subsea permafrost from the Buor-Khaya Bay |
title_full_unstemmed |
Compositional patterns of lignin derived phenols in bottom sediments and subsea permafrost from the Buor-Khaya Bay |
title_sort |
compositional patterns of lignin derived phenols in bottom sediments and subsea permafrost from the buor-khaya bay |
publisher |
Mendeley |
publishDate |
2021 |
url |
https://dx.doi.org/10.17632/7dfh5v7k8b.1 https://data.mendeley.com/datasets/7dfh5v7k8b/1 |
long_lat |
ENVELOPE(127.803,127.803,72.287,72.287) ENVELOPE(135.167,135.167,60.567,60.567) |
geographic |
Buor-Khaya Khaya Laptev Sea |
geographic_facet |
Buor-Khaya Khaya Laptev Sea |
genre |
laptev Laptev Sea permafrost |
genre_facet |
laptev Laptev Sea permafrost |
op_relation |
https://dx.doi.org/10.17632/7dfh5v7k8b |
op_rights |
Creative Commons Attribution 4.0 International info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.17632/7dfh5v7k8b.1 https://doi.org/10.17632/7dfh5v7k8b |
_version_ |
1766062596964745216 |