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Boucsein, Bettina; Stein, Ruediger (1999): Macerals in surface sediments of the Laptev Sea (Arctic Ocean). PANGAEA, https://doi.org/10.1594/PANGAEA.55417, Supplement to: Boucsein, B; Stein, R (2000): Particulate organic matter in surface sediments of the Laptev Sea (Arctic Ocean): application of maceral analysis as organic-carbon-source indicator. Marine Geology, 162(2-4), 573-586, https://doi.org/10.1016/S0025-3227(99)00066-3

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Abstract:
Surface sediments from the Laptev Sea and adjacent continental slope were studied for their composition of particulate organic matter (OM) by means of maceral analysis. The composition of macerals in sediments gives information about the environment, terrigenous supply from the hinterland, and marine OM. With reference to their biological sources, we distinguish between terrigenous and marine macerals. We found that the particulate OM in the surface sediments of the Laptev Sea is predominantly of terrigenous origin (mean: 78%). However, distinct variations exist when looking in detail. In the shelf area, sediments may contain up to 99% terrigenous OM. Freshwater algae occur directly north of the river mouths, reflecting the strong fluvial influence. Relatively high amounts of marine OM (20-40%) are restricted to the upper continental slope, the Vilkitsky Strait and west of the New Siberian Islands, explained by increased surface-water productivity due to increased fluvial nutrient supply, open-water conditions, and phytoplankton blooms at the ice-edge.
Coverage:
Median Latitude: 76.399706 * Median Longitude: 125.309118 * South-bound Latitude: 72.550000 * West-bound Longitude: 102.288333 * North-bound Latitude: 79.651667 * East-bound Longitude: 137.551667
Date/Time Start: 1993-08-11T00:00:00 * Date/Time End: 1993-09-23T00:00:00
Minimum DEPTH, sediment/rock: m * Maximum DEPTH, sediment/rock: m
Event(s):
IK9307-3 * Latitude: 72.550000 * Longitude: 131.296667 * Date/Time: 1993-08-31T00:00:00 * Elevation: -21.0 m * Recovery: 0.29 m * Location: Laptev Sea * Campaign: Transdrift-I * Basis: Ivan Kireyev * Device: Box corer (Reineck) (BCR)
IK9316-8 * Latitude: 73.001667 * Longitude: 131.501667 * Date/Time: 1993-08-23T00:00:00 * Elevation: -28.0 m * Recovery: 0.38 m * Location: Laptev Sea * Campaign: Transdrift-I * Basis: Ivan Kireyev * Device: Box corer (Reineck) (BCR)
IK9318-5 * Latitude: 73.496667 * Longitude: 137.551667 * Date/Time: 1993-08-21T00:00:00 * Elevation: -24.0 m * Recovery: 0.45 m * Location: Laptev Sea * Campaign: Transdrift-I * Basis: Ivan Kireyev * Device: Box corer (Reineck) (BCR)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Event labelEvent
2Latitude of eventLatitude
3Longitude of eventLongitude
4Elevation of eventElevationm
5DEPTH, sediment/rockDepthmGeocode
6HuminiteHuminite%Boucsein, BettinaFluorescent microscope
7TextiniteTextinite%Boucsein, BettinaFluorescent microscope
8VitriniteVitr%Boucsein, BettinaFluorescent microscope
9InertiniteInertinite%Boucsein, BettinaFluorescent microscope
10TerrigenousTerr%Boucsein, Bettinaterrigeneous detritus
11SporiniteSporinite%Boucsein, BettinaFluorescent microscope
12CutiniteCutinite%Boucsein, BettinaFluorescent microscope
13Liptinite, terrigenousLiptinite terr%Boucsein, BettinaFluorescent microscope
14LiptiniteLiptinite%Boucsein, BettinaFluorescent microscopeundefined Liptinite
15Coal clasts or fragmentsCoal clasts%Boucsein, BettinaFluorescent microscope
16Alginite, freshwaterAlginite fw%Boucsein, BettinaFluorescent microscope
17LiptodetriniteLiptodetrinite%Boucsein, BettinaFluorescent microscopemarine-terrigeneous
18LiptodetriniteLiptodetrinite%Boucsein, BettinaFluorescent microscopemarine
19AlginiteAlginite%Boucsein, BettinaFluorescent microscopemarine
20Dinoflagellate cystDinofl cyst%Boucsein, Bettina
21Maceral, terrigenousMaceral terrigenous%Boucsein, BettinaFluorescent microscope
22Maceral, mixedMaceral mix%Boucsein, BettinaFluorescent microscope
23Maceral, marineMaceral marine%Boucsein, BettinaFluorescent microscope
Size:
615 data points

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