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)

  • S. B. Nikolaeva
  • N. B. Lavrova
  • D. B. Denisov


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.


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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

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