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Seralathan, P; Hartmann, Martin (1986): Geochemical analysis of bulk sediment and interstitial water of sediment cores from the North-West African continental margin [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.548490, Supplement to: Seralathan, P; Hartmann, M (1986): Molybdenum and vanadium in sediment cores from the NW-African continental margin and their relations to climatic and environmental conditions. Meteor Forschungsergebnisse, Deutsche Forschungsgemeinschaft, Reihe C Geologie und Geophysik, Gebrüder Bornträger, Berlin, Stuttgart, C40, 1-17

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Abstract:
Molybdenum and vanadium were analysed in 9 scediment cores recovered from the continental slope and rise off NW Africa. Additionall chemical and sedimentological parameters as well as isotope stage boundaries were available for the same core profiles from other investigations.
Molybdenum, ranging between <1 and 10 ppm, occurs in two associateions, either with organic carbon and sulphides in sediments with reducing conditions or with Mn oxides in oxidized near-surface core sections.
Highest values (between 4 and 10 ppm Mo) are found in sulphide-rich core sections deposited during glacial times in a core from 200 m water depth. The possibility of anoxic near-bottom water conditions prevailing at thhis site during certain glacial intervals is discussed.
In oxidized near-surface core sections, the diagenetic mobility of Mo becomes evident from strong Mo enrichment together with Mn oxides (values up to 4 ppm Mo). This enrichment is probably due to coprecipitation and/or adsorption of Mo from interstitial water to the diagenetically forming Mn oxides.
The close relation between Mo and Corg results in strongly covarying sedimentation rates in both components reaching up to 10 times the rates in glacial compared to interglacial core sections.
Vanadium (values between 20 and 100 ppm) does not show clear relations to climate and near-bottom or sediment milieu. It occurs mainly bound to the fine grained terrigenous fraction, associated with aluminium silicates (clay minerals) and iron oxides. Additionally positive covariation of vanadium with phosphorus in most core profiles suggest that some V may be bound to phosphates.
Project(s):
Institute for Geosciences, Christian Albrechts University, Kiel (GIK/IfG)
Coverage:
Median Latitude: 17.772720 * Median Longitude: -13.085032 * South-bound Latitude: 8.256667 * West-bound Longitude: -19.930000 * North-bound Latitude: 25.171667 * East-bound Longitude: 63.783000
Date/Time Start: 1965-03-20T00:00:00 * Date/Time End: 1983-08-11T00:00:00
Event(s):
GIK01049 (M1_243) * Latitude: 22.433000 * Longitude: 63.783000 * Date/Time: 1965-03-20T00:00:00 * Elevation: -523.0 m * Location: Northern Arabian Sea * Campaign: M1 (IIOE - International Indian Ocean Expedition) * Basis: Meteor (1964) * Method/Device: Kasten corer (KAL)
GIK01061 (M1_256) * Latitude: 25.150000 * Longitude: 56.966000 * Date/Time: 1965-03-27T00:00:00 * Elevation: -392.0 m * Location: Persian Gulf * Campaign: M1 (IIOE - International Indian Ocean Expedition) * Basis: Meteor (1964) * Method/Device: Kasten corer (KAL)
GIK01066 (M1_261) * Latitude: 25.116000 * Longitude: 57.033000 * Date/Time: 1965-03-28T00:00:00 * Elevation: -726.0 m * Location: Persian Gulf * Campaign: M1 (IIOE - International Indian Ocean Expedition) * Basis: Meteor (1964) * Method/Device: Kasten corer (KAL)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
15 datasets

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Datasets listed in this publication series

  1. Seralathan, P; Hartmann, M (1986): Vanadium and Molybdenum values of bulk sediment for sediment core GIK12310-3, NW-African continental margin (Appendix Tab. A). https://doi.org/10.1594/PANGAEA.545087
  2. Seralathan, P; Hartmann, M (1986): Vanadium and Molybdenum values of bulk sediment for sediment core GIK12310-4, NW-African continental margin (Appendix Tab. A). https://doi.org/10.1594/PANGAEA.545088
  3. Seralathan, P; Hartmann, M (1986): Vanadium and Molybdenum values of bulk sediment for sediment core GIK12327-4, NW-African continental margin (Appendix Tab. A). https://doi.org/10.1594/PANGAEA.545089
  4. Seralathan, P; Hartmann, M (1986): Vanadium and Molybdenum values of bulk sediment for sediment core GIK12328-5, NW-African continental margin (Appendix Tab. A). https://doi.org/10.1594/PANGAEA.545090
  5. Seralathan, P; Hartmann, M (1986): Vanadium and Molybdenum values of bulk sediment for sediment core GIK12329-4, NW-African continental margin (Appendix Tab. A). https://doi.org/10.1594/PANGAEA.545091
  6. Seralathan, P; Hartmann, M (1986): Vanadium and Molybdenum values of bulk sediment for sediment core GIK12337-5, NW-African continental margin (Appendix Tab. A). https://doi.org/10.1594/PANGAEA.545092
  7. Seralathan, P; Hartmann, M (1986): Vanadium and Molybdenum values of bulk sediment for sediment core GIK12344-6, NW-African continental margin (Appendix Tab. A). https://doi.org/10.1594/PANGAEA.545093
  8. Seralathan, P; Hartmann, M (1986): Vanadium and Molybdenum values of bulk sediment for sediment core GIK12347-2, NW-African continental margin (Appendix Tab. A). https://doi.org/10.1594/PANGAEA.545094
  9. Seralathan, P; Hartmann, M (1986): Vanadium and Molybdenum values of bulk sediment for sediment core GIK12379-1, NW-African continental margin (Appendix Tab. A). https://doi.org/10.1594/PANGAEA.545095
  10. Seralathan, P; Hartmann, M (1986): Vanadium and Molybdenum values of bulk sediment for sediment core GIK12392-1, NW-African continental margin (Appendix Tab. A). https://doi.org/10.1594/PANGAEA.545096
  11. Seralathan, P; Hartmann, M (1986): Vanadium and Molybdenum values of pore water for sediment core GIK16420-1, NW-African continental margin (Appendix Tab. B). https://doi.org/10.1594/PANGAEA.545098
  12. Seralathan, P; Hartmann, M (1986): Vanadium and Molybdenum values of pore water for sediment core GIK16422-2, NW-African continental margin (Appendix Tab. B). https://doi.org/10.1594/PANGAEA.545099
  13. Seralathan, P; Hartmann, M (1986): Vanadium and Molybdenum values of pore water for sediment core GIK16425-1, NW-African continental margin (Appendix Tab. B). https://doi.org/10.1594/PANGAEA.545100
  14. Seralathan, P; Hartmann, M (1986): Vanadium and Molybdenum values of pore water for sediment core GIK16426-3, NW-African continental margin (Appendix Tab. B). https://doi.org/10.1594/PANGAEA.545101
  15. Seralathan, P; Hartmann, M (1986): Geochemical analysis of bulk sediment surface samples of the Gulf of Oman (Appendix Tab. C). https://doi.org/10.1594/PANGAEA.544880