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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Main Author: Ulyantsev, Alexander
Format: Dataset
Language:unknown
Published: Mendeley 2021
Subjects:
Online Access:https://dx.doi.org/10.17632/7dfh5v7k8b.1
https://data.mendeley.com/datasets/7dfh5v7k8b/1
id ftdatacite:10.17632/7dfh5v7k8b.1
record_format openpolar
spelling 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
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