Peresypkin, Valery I; Romankevich, Evgeny A; Aleksandrov, A V (2004): n-Alkanes and lignin in bottom sediments of the Norwegian Sea [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.762896, Supplement to: Peresypkin, VI et al. (2004): Studies of the organic matter composition in the bottom sediments of the Norwegian Sea. Translated from Okeanologiya, 2004, 44(6), 855-869, Oceanology, 44(6), 799-814
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Abstract:
Investigations of bottom sediments from the central and northern parts of the Norwegian Sea including study regions at the Storegga landslide, the Haakon Mosby mud volcano, and Knipovich Ridge were carried out. Concentration of n-alkanes in bottom sediments from these regions ranges from 0.53 to 22.1 µg/g of dry sediments that corresponds to 0.02-1.97% of Corg. Molecular composition of hydrocarbons indicates mixed allochtonous-authochtonous genesis of total organic matter (TOC) formed by hydrobiota and residuals of terrestrial plants. Terrigenous organic mater dominates in bottom sediments. Active redox, microbial and thermolytic processes of organic matter transformation take place in the sedimentary mass. Special character of chromatographic spectra of n-alkane distribution in both low and high-molecular ranges, as well as increased naphtene contents can be interpreted as a sign of oil hydrocarbon generation from maternal organic matter as a result of thermocatalytic reactions within sedimentary mass and their displacement into the upper sedimentary layers. Molecular compositions and concentrations of phenols and lignin were determined in core samples from the Norwegian Sea. Total concentration of phenols in the cores ranges from 8.1 to 101.8 (µg/g of dry sediments that corresponds to 0.15-1.15% of TOC. Lignin concentration was estimated at 21.0-459.0 µg/g of dry sediments (0.59-7.9% of ?org. Phenol compounds of p-hydroxybenzoic, vanillin, syringyl and cinnamyl families as basic components of lignin macromolecules were identified. It was found that sea currents and aerosols are the main contributors of lignin into the abyssal part of the Norwegian Sea.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 69.242110 * Median Longitude: 9.111876 * South-bound Latitude: 64.625500 * West-bound Longitude: 4.418833 * North-bound Latitude: 76.807000 * East-bound Longitude: 14.731833
Event(s):
AMK38-3706 * Latitude: 64.634167 * Longitude: 4.513333 * Elevation: -1235.0 m * Location: Norwegian Sea * Campaign: AMK38 * Basis: Akademik Mstislav Keldysh * Method/Device: Gravity corer (GC)
AMK38-3711 * Latitude: 64.625500 * Longitude: 4.418833 * Elevation: -1280.0 m * Location: Norwegian Sea * Campaign: AMK38 * Basis: Akademik Mstislav Keldysh * Method/Device: Gravity corer (GC)
AMK38-3727 * Latitude: 64.785000 * Longitude: 4.815000 * Elevation: -1235.0 m * Location: Norwegian Sea * Campaign: AMK38 * Basis: Akademik Mstislav Keldysh * Method/Device: Gravity corer (GC)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Peresypkin, VI; Romankevich, EA; Aleksandrov, AV (2004): (Table 1) Contents and composition of n-alkanes in bottom sediments of the Norwegian Sea. https://doi.org/10.1594/PANGAEA.762892
- Peresypkin, VI; Romankevich, EA; Aleksandrov, AV (2004): (Table 2) Content and composition of lignin and its derivates in bottom sediments of the Norwegian Sea. https://doi.org/10.1594/PANGAEA.762894