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Bakker, Joop F; Helder, Wim (1993): Oxygen microprofiles and porewater chemistry in sediments of the Skagerrak. PANGAEA, https://doi.org/10.1594/PANGAEA.736020, Supplement to: Bakker, JF; Helder, W (1993): Skagerrak (northeastern North-Sea) oxygen microprofiles and porewater chemistry in sediments. Marine Geology, 111(3-4), 299-321, https://doi.org/10.1016/0025-3227(93)90137-K

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Abstract:
Sediment porewater oxygen profiles were measured with micro and needle electrodes in sediment cores of 27 stations in the Skagerrak (northeastern North Sea). Oxygen penetration depth ranged from 3 to 20 mm depth. Fluxes estimated from the oxygen gradients varied from 3 to 18 mmol m**-2 d**-1. Oxygen penetration and flux depend on water depth, but possibly more on the hydrological conditions, related to the import of fresh organic matter by primary production in the water column. Oxygen fluxes were not related to the total organic carbon (TOC) content of the sediments. Stations in the eastern part of the Skagerrak showed high burial rates of TOC.
At 6 stations porewater chemistry of Fe, Mn and NO3- was strongly associated with the oxygen distribution. The average relative contribution of terminal electron acceptors to carbon mineralisation was estimated at 85% for O2, 0.5% for Mn, 4.5% for [NO3]3-, 1% for Fe and 9% for [SO4]2-.
At one station the occurrence of exceptionally high solid manganese oxyhydroxides was probably related to an active internal manganese cycle.
Coverage:
Median Latitude: 57.855556 * Median Longitude: 9.333333 * South-bound Latitude: 57.400000 * West-bound Longitude: 7.600000 * North-bound Latitude: 58.300000 * East-bound Longitude: 11.500000
Date/Time Start: 1984-08-01T00:00:00 * Date/Time End: 1984-08-27T00:00:00
Event(s):
Aurelia_08_1984_01_BC (A84-01) * Latitude: 57.400000 * Longitude: 7.700000 * Date/Time: 1984-08-01T00:00:00 * Elevation: -210.0 m * Campaign: Aurelia_08_1984 * Basis: Aurelia * Device: Box corer (BC)
Aurelia_08_1984_02_BC (A84-02) * Latitude: 57.500000 * Longitude: 7.600000 * Date/Time: 1984-08-02T00:00:00 * Elevation: -274.0 m * Campaign: Aurelia_08_1984 * Basis: Aurelia * Device: Box corer (BC)
Aurelia_08_1984_03_BC (A84-03) * Latitude: 57.700000 * Longitude: 7.600000 * Date/Time: 1984-08-03T00:00:00 * Elevation: -430.0 m * Campaign: Aurelia_08_1984 * Basis: Aurelia * Device: Box corer (BC)
Size:
27 datasets

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Datasets listed in this publication series

  1. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_01. https://doi.org/10.1594/PANGAEA.77480
  2. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_02. https://doi.org/10.1594/PANGAEA.77481
  3. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_03. https://doi.org/10.1594/PANGAEA.77482
  4. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_04. https://doi.org/10.1594/PANGAEA.77490
  5. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_05. https://doi.org/10.1594/PANGAEA.77492
  6. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_06. https://doi.org/10.1594/PANGAEA.77493
  7. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_07. https://doi.org/10.1594/PANGAEA.77498
  8. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_08. https://doi.org/10.1594/PANGAEA.77499
  9. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_09. https://doi.org/10.1594/PANGAEA.77500
  10. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_11. https://doi.org/10.1594/PANGAEA.77501
  11. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_12. https://doi.org/10.1594/PANGAEA.77502
  12. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_13. https://doi.org/10.1594/PANGAEA.77503
  13. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_14. https://doi.org/10.1594/PANGAEA.77504
  14. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_15. https://doi.org/10.1594/PANGAEA.77506
  15. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_16. https://doi.org/10.1594/PANGAEA.77507
  16. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_17. https://doi.org/10.1594/PANGAEA.77508
  17. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_18. https://doi.org/10.1594/PANGAEA.77509
  18. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_19. https://doi.org/10.1594/PANGAEA.77510
  19. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_20. https://doi.org/10.1594/PANGAEA.77511
  20. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_21. https://doi.org/10.1594/PANGAEA.77512
  21. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_22. https://doi.org/10.1594/PANGAEA.77513
  22. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_23. https://doi.org/10.1594/PANGAEA.77514
  23. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_24. https://doi.org/10.1594/PANGAEA.77515
  24. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_25. https://doi.org/10.1594/PANGAEA.77519
  25. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_26. https://doi.org/10.1594/PANGAEA.77520
  26. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_27. https://doi.org/10.1594/PANGAEA.77521
  27. Bakker, JF; Helder, W (1993): Porewater chemistry of sediment profile Aurelia_08_1984_28. https://doi.org/10.1594/PANGAEA.77522