Advertisement

Doklady Earth Sciences

, Volume 472, Issue 2, pp 237–240 | Cite as

Ferromanganese nodules from the Kara Sea: Interrelation between organic matter and ore elements

  • N. A. Shulga
  • A. N. Drozdova
  • V. I. Peresypkin
Geochemistry
  • 45 Downloads

Abstract

This study presents data on Fe–Mn nodules first recovered from the northeastern part of the Kara Sea. Analysis of the geochemical indicators of organic matter and major and trace element compositions of nodules showed that samples with strong Mn enrichment (Mn/Fe = 2.38, on average) are dominated by terrestrial organic matter (OM), whereas Fe-rich samples (Mn/Fe = 0.20, on average) are dominated by marine biogenic OM. The variation in the n-alkane abundances in the studied nodules is independent of the sampling sites and nodule morphology. This study was conducted for the first time in the Artic region.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    N. S. Skornyakova and I. O. Murdmaa, Mar. Geol. 103, 381–405 (1992).CrossRefGoogle Scholar
  2. 2.
    J. S. Leventhal and T. H. Giordano, in Ore Genesis and Exploration: The Roles of Organic Matter (Society of Economic Geologists, New York, 2000), Rev. Econ. Geol. 9, 1–26.Google Scholar
  3. 3.
    K. Peters, C. C. Walters, and J. Moldowan, The Biomarker Guide (Cambridge Univ. Press, Cambridge, 2005).Google Scholar
  4. 4.
    F. J. Gonsalez, L. Somoza, R. Lunar, et al., Mar. Geol. 261, 64–81 (2009).CrossRefGoogle Scholar
  5. 5.
    Proceedings in Marine Science, Vol. 6: Siberian River Run-off in the Kara Sea. Characterization, Quantification, Variability and Environmental Significance, Ed. by R. Stein and K. Fahl (Elsevier, Amsterdam, 2003).Google Scholar
  6. 6.
    N. A. Shulga, V. I. Peresypkin, and I. A. Revelskii, Oceanology 50 (4), 479–487 (2010).CrossRefGoogle Scholar
  7. 7.
    G. N. Baturin, Oceanology 51 (1), 148–156 (2011).CrossRefGoogle Scholar
  8. 8.
    E. A. Romankevich and A. A. Vetrov, Carbon Cycle in the Arctic Seas (Nauka, Moscow, 2001) [in Russian].Google Scholar
  9. 9.
    G. N. Baturin, Geochemistry of Oceanic Ferromanganese Nodules (Nauka, Moscow, 1986) [in Russian].Google Scholar
  10. 10.
    A. N. Belyaeva and G. Eglinton, Oceanology 37 (5), 634–642 (1997).Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • N. A. Shulga
    • 1
  • A. N. Drozdova
    • 1
  • V. I. Peresypkin
    • 1
  1. 1.Shirshov Institute of OceanologyRussian Academy of SciencesMoscowRussia

Personalised recommendations