Doklady Earth Sciences

, Volume 473, Issue 1, pp 308–312 | Cite as

A catastrophic holocene event in the lake bottom sediments of the Kola region (northeastern Fennoscandian shield)

Geography
  • 22 Downloads

Abstract

Horizons with seismogenic sediments are revealed in the bottom sediments of the lake basins in the southwestern Kola Peninsula. In the borehole cores, they are represented by material that sharply differs from the overlying and underlying sediments: fragments of gyttia, siltstone, wood, sand, and peat that are embedded in the sapropelic matrix and look like breccia. These sediments reflect a strong catastrophic event from the Holocene that occurred 6000–5400 14C yr BP. The seismic events that happened in the middle Holocene in the northeastern Fennoscandian shield indicate a significant role of the tectonic component in the damping process of relaxation of the Earth’s crust in the unloading of the recent glacier cover.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    A. D. Lukashov, Nuclear Waste Disposal Research, Report Yst-90 (Geol. Surv. Finland, Espoo, 1995).Google Scholar
  2. 2.
    F. Arnaud, V. Lignier, M. Revel, et al., Terra Nova 14, 225–232 (2002).CrossRefGoogle Scholar
  3. 3.
    J. Nomade, E. Chapron, J.-L. Reyss, et al., Terra Nova 17, 350–357 (2005).CrossRefGoogle Scholar
  4. 4.
    E. Heifetz, A. Agnon, and S. Marco, Earth Planet. Sci. Lett. 236, 497–504 (2005).CrossRefGoogle Scholar
  5. 5.
    D. E. Smith, I. D. L. Foster, D. Long, and S. Shi, Sediment. Geol. 200, 362–371 (2007).CrossRefGoogle Scholar
  6. 6.
    S. B. Nikolaeva, Geomorfologiya, No. 4, 66–74 (2001).Google Scholar
  7. 7.
    S. B. Nikolaeva, A. A. Nikonov, and S. V. Shvarev, in Proc. Joint Int. Conf. “Geomorphology and Paleography of Polar Regions,” Symp. “Leopoldina” and INQVA Peribaltic Working Group Meet., St. Petersburg, September 9–17, 2012 (St. Petersburg State Univ., St. Petersburg, 2012), pp. 161–163 [in Russian].Google Scholar
  8. 8.
    S. V. Shvarev, Geomorfologiya, No. 4, 97–104 (2003).Google Scholar
  9. 9.
    A. A. Nikonov, Priroda (Moscow, Russ. Fed.), No. 1, 35–38 (2007).Google Scholar
  10. 10.
    I. G. Avenarius, Geomorfologiya, No. 2, 52–56 (1989).Google Scholar
  11. 11.
    N.-A. Morner, Tectonophysics 408, 265–307 (2005).CrossRefGoogle Scholar
  12. 12.
    A. A. Nikonov, in Geophysics of 21st Century. 2002 Year. Collection of Sci. Works of 4th Geophys. Readings Named after V. V. Fedynskii (Nauchn. Mir, Moscow, 2003), pp. 207–214 [in Russian].Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • S. B. Nikolaeva
    • 1
  • N. B. Lavrova
    • 2
  • D. B. Denisov
    • 3
  1. 1.Geological Institute of the Kola Science CenterRussian Academy of SciencesApatityRussia
  2. 2.Institute of Geology, Karelian Science CenterRussian Academy of SciencesPetrozavodskRussia
  3. 3.Institute of the Industrial Ecological Problems of the North, Kola Science CenterRussian Academy of SciencesApatityRussia

Personalised recommendations