Boucsein, Bettina; Stein, Ruediger (1999): Macerals in surface sediments of the Laptev Sea (Arctic Ocean) [dataset]. 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.
Project(s):
Funding:
Fourth Framework Programme (FP4), grant/award no. MAS3980185: Quaternary Environment of the Eurasian North
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: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
IK93Z2-5 * Latitude: 73.666667 * Longitude: 113.996667 * Date/Time: 1993-08-11T00:00:00 * Elevation: -9.0 m * Recovery: 0.17 m * Location: Laptev Sea * Campaign: Transdrift-I * Basis: Ivan Kireyev * Method/Device: Box corer (Reineck) (BCR)
IK93Z3-4 * Latitude: 73.291667 * Longitude: 119.831667 * Date/Time: 1993-08-13T00:00:00 * Elevation: -11.0 m * Recovery: 0.33 m * Location: Laptev Sea * Campaign: Transdrift-I * Basis: Ivan Kireyev * Method/Device: Box corer (Reineck) (BCR)
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 * Method/Device: Box corer (Reineck) (BCR)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 6 | Huminite | Huminite | % | Boucsein, Bettina | Fluorescent microscope | |
| 7 | Textinite | Textinite | % | Boucsein, Bettina | Fluorescent microscope | |
| 8 | Vitrinite | Vitr | % | Boucsein, Bettina | Fluorescent microscope | |
| 9 | Inertinite | Inertinite | % | Boucsein, Bettina | Fluorescent microscope | |
| 10 | Terrigenous | Terr | % | Boucsein, Bettina | terrigeneous detritus | |
| 11 | Sporinite | Sporinite | % | Boucsein, Bettina | Fluorescent microscope | |
| 12 | Cutinite | Cutinite | % | Boucsein, Bettina | Fluorescent microscope | |
| 13 | Liptinite, terrigenous | Liptinite terr | % | Boucsein, Bettina | Fluorescent microscope | |
| 14 | Liptinite | Liptinite | % | Boucsein, Bettina | Fluorescent microscope | undefined Liptinite |
| 15 | Coal clasts or fragments | Coal clasts | % | Boucsein, Bettina | Fluorescent microscope | |
| 16 | Alginite, freshwater | Alginite fw | % | Boucsein, Bettina | Fluorescent microscope | |
| 17 | Liptodetrinite | Liptodetrinite | % | Boucsein, Bettina | Fluorescent microscope | marine-terrigeneous |
| 18 | Liptodetrinite | Liptodetrinite | % | Boucsein, Bettina | Fluorescent microscope | marine |
| 19 | Alginite | Alginite | % | Boucsein, Bettina | Fluorescent microscope | marine |
| 20 | Dinoflagellate cyst | Dinofl cyst | % | Boucsein, Bettina | ||
| 21 | Maceral, terrigenous | Maceral terrigenous | % | Boucsein, Bettina | Fluorescent microscope | |
| 22 | Maceral, mixed | Maceral mix | % | Boucsein, Bettina | Fluorescent microscope | |
| 23 | Maceral, marine | Maceral marine | % | Boucsein, Bettina | Fluorescent microscope |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
615 data points