Izvestiya, Physics of the Solid Earth

, Volume 51, Issue 1, pp 44–50 | Cite as

Variations in the intensity of the geomagnetic field in Siberia during the last 13000 years

  • I. E. NachasovaEmail author
  • K. S. Burakov
  • O. V. Pilipenko


The thermal magnetization of the samples from the archaeological sites in Siberia is studied. The magnetization of the collected samples was studied using the authors’ modification of the Thellier method amended by the magnetic anisotropy and chemical alterations. Resulting from the study of the burned material from the Kazachka site, the time series of the geomagnetic field intensity in Siberia spanning the time interval from 10000 to 1000 B.C. is obtained. These data are unique in terms of the duration and representativeness. For the first time, the main variation in the intensity of the geomagnetic field is traced by studying the magnetization of the samples from a single archeological site. The pattern of the variations in the intensity of the geomagnetic field in Siberia from 11000 B.C. to 2000 A.D., which is reconstructed from the data of the Kazachka, Ust-Karenga, and some other sites of Cis-Baikalia, indicates that the characteristics time of the long-period oscillation in the intensity of the geomagnetic field is about 8000 years. It also suggests the existence of rapid variations superimposed on the main oscillation.


Solid Earth Archaeological Site Baikal Region Cultural Layer Geomagnetic Intensity 
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Copyright information

© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  • I. E. Nachasova
    • 1
    Email author
  • K. S. Burakov
    • 1
  • O. V. Pilipenko
    • 1
  1. 1.Schmidt Institute of Physics of the EarthRussian Academy of SciencesMoscowRussia

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