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Izvestiya, Atmospheric and Oceanic Physics

, Volume 54, Issue 8, pp 859–866 | Cite as

Paleogeographic Conditions and Age of a Strong Earthquake According to Data from Studying of the Holocene Deposits from Lake Sevan, Armenia

  • A. A. VardanyanEmail author
  • A. M. KorzhenkovEmail author
  • A. A. SorokinEmail author
  • R. Yu. StakhovskayaEmail author
Article
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Abstract

A field study of sections of loose deposits in the western part of the Lake Sevan basin (Armenia) is conducted to investigate geoecological and paleogeographic features of existence and development of high-mountain lakes. The typical lithological patterns of significant lake transgressions are revealed and stratigraphic layers with numerous remnants of human activity, as well as the traces of ancient earthquakes, such as horizons of seismogenic convolutions in lacustrine deposits (seismites), are found. To determine the absolute age of the stratigraphic units, four radiocarbon dates of the samples from the section near the village of Norashen are used. They estimate the age of limnologic deposits in the interval of 2020 ± 120–6270 ± 110 yr BP for a 4.5-m-thick section. Using these data, the average sedimentation rate in the studied region equal to 0.34 mm/yr is calculated. It is established that there were two significant lake transgressions: in the Middle and Late Holocene. During the field study, special attention was paid to the section of lacustrine deposits near the village of Norashen because it had layers with significant traces of human activity: ceramics and bone remnants. The results of archeological investigations and radiocarbon dates of the samples from the Norashen section have shown that humans settled in this region twice: in the 3rd and the middle of the 2nd millenium BC. The analysis of the materials of studying the seismogenic convolutions in the lacustrine deposits and archaeological data has given us an idea about the possible connection of the transgression regime and a 500-year pause in human settlement of the study region with a strong earthquake that occurred approximately 4400 years ago in the Lake Sevan basin. These data can be used for determining the long-term trend of oscillations for the high-mountain lake in the Holocene and for revealing its causes, as well as for a more precise assessment of the seismic hazard in the western part of the Lake Sevan basin.

Keywords:

Lake Sevan transgression Armenia seismites radiocarbon age Holocene Norashen section strong earthquake archeology 

Notes

ACKNOWLEDGMENTS

These studies were supported by the NATO Science for Peace and Security program, project nos. 983142 and 983284 and by ISTC, project no. G-2153.

REFERENCES

  1. 1.
    Anand, A. and Jain, A.K., Earthquakes and deformational structures (seismites) in Holocene sediments from the Himalayan–Andaman Arc, India, Tectonophysics, 1987, vol. 133, pp. 105–120.CrossRefGoogle Scholar
  2. 2.
    Babayan, T., Atlas of Strong Earthquakes of the Republic of Armenia: Artsakh and Adjacent Territories from Ancient Times through 2003, Gyumri, 2006.Google Scholar
  3. 3.
    Bowman, D., Korjenkov, A., and Porat, N., Late-Pleistocene seismites from Lake Issyk-Kul, the Tien Shan Range, Kyrghyzstan, Sediment. Geol., 2004, vol. 163, pp. 211–228.CrossRefGoogle Scholar
  4. 4.
    Calgue, J.J., Naesgaard, E., and Sy, A., Liquefaction features on the Fraser delta: Evidence for prehistoric earthquakes?, Can. J. Earth Sci., 1992, vol. 29, pp. 1734–1745.CrossRefGoogle Scholar
  5. 5.
    Deev, E.V., Zol’nikov, I.D., and Staroverov, V.N., Reflection of fast geological processes in depositions and textures (on the example of different-age systems of Northern Eurasia), Litosfera, 2012, no. 6, pp. 14–35.Google Scholar
  6. 6.
    Gladkov, A.S., Lobova, E.U., Deev, E.V., Korzhenkov, A.M., Mazeika, J.V., Abdieva, S.V., Rogozhin, E.A., Rodkin, M.V., Fortuna, A.B., Charimov, T.A., and Yudakhin, A.S., Earthquake-induced soft-sediment deformation structures in Late Pleistocene lacustrine deposits of Issyk-Kul Lake (Kyrgyzstan), Sediment. Geol., 2016, vol. 344, pp. 112–122. https://doi.org/10.1016/ j.sedgeo.2016.06.019.CrossRefGoogle Scholar
  7. 7.
    Hempton, M.R. and Dewey, J.F., Earthquake-induced deformational structures in young lacustrine sediments, East-Anatolia Fault, Southeast Turkey, Tectonophysics, 1983, vol. 98, pp. T8–T14.Google Scholar
  8. 8.
    Karakhanian, A. and Abgaryan, Ye., Evidence of historical seismicity and volcanism in the Armenian Highland (from Armenian and other sources), Ann. Geophys., 2004, vol. 47, nos. 2–3, pp. 793–810.Google Scholar
  9. 9.
    Karakhanian, A., Djrbashian, R., Trifonov, V., Philip, H., Arakelian, S., and Avagian, A., Holocene-historical volcanism and active faults as natural risk factors for Armenia and adjacent countries, J. Volcanol. Geotherm. Res., 2002, vol. 113, pp. 319–344.CrossRefGoogle Scholar
  10. 10.
    Korjenkov, A.M., Seismogenic convolutions in the lacustrine deposits of the Issyk-Kul Lake, the Tien Shan, J. Earthquake Pred. Res., 2000, vol. 8, pp. 514–519.Google Scholar
  11. 11.
    Korzhenkov, A.M., Seismogeologiya Tyan’-Shanya (v predelakh territorii Kyrgyzstana i prilegayushchikh raionov) (The Seismology of Tien Shan (within the Territory of Kyrgyzstan and Adjacent Regions)), Bishkek: Ilim, 2006.Google Scholar
  12. 12.
    Korzhenkov, A.M., Bauman, D., Omuraliev, M., and Khasel’ton, K., Traces of ancient strong earthquakes in deposits f v Lake Issyk-Kul, Izv. Ross. Geogr. O-va, 1999, vol. 131, no. 4, pp. 48–55.Google Scholar
  13. 13.
    Korzhenkov, A.M., Avanesyan, M.A., Virgino, A., and Karakhanyan, A.S., Seismogenic convolutions in quaternary deposits of Lake Sevan (Armenia), Geol. Geofiz., 2014, vol. 55, no. 1, pp. 56–65.Google Scholar
  14. 14.
    Lowe, D.R., Water escape structures in coarse grained sediments, Sedimentology, 1975, vol. 22, pp. 157–204.CrossRefGoogle Scholar
  15. 15.
    Lunina, O.V. and Gladkov, A.S., Soft-sediment deformation structures induced by strong earthquakes in Southern Siberia and their paleoseismic significance, Sediment. Geol., 2016, vol. 344, no. 1, pp. 5–19. https:// doi.org/10.1016/j.sedgeo.2016.02.014.CrossRefGoogle Scholar
  16. 16.
    Lunina O.V., Gladkov, A.S., and Orlova, L.A., Paleoseismicity in cis-Baikal rift basins: Evidence and age constraints, Dokl. Earth Sci., 2009, vol. 427, no. 1, pp. 751–754.CrossRefGoogle Scholar
  17. 17.
    Povolotskaya, I.E., Korzhenkov, A.M., and Mamyrov, E.M., Traces of strong earthquakes in lake deposits of the Kok-Moinok Basin (Northern Tien Shan), Geol. Geofiz., 2006, no. 10, pp. 1024–1035.Google Scholar
  18. 18.
    Rodriguez-Pascua, M.A., Calvo, J.P., De Vicente, G., and Gomez-Gras, D., Soft sediment deformation structures interpreted as seismites in lacustrine sediments of the Prebetic Zone, SE Spain, and their potential use as indicators of earthquakes magnitudes during the Late Miocene, Sediment. Geol., 2000, vol. 135, pp. 117–135.CrossRefGoogle Scholar
  19. 19.
    Rossetti, D.F., Soft sediment deformation structures in late Albian to Cenomanian deposits, Sao Luis Basin, Northern Brazil: Evidence for palaeoseismicity, Sedimentology, 1999, vol. 46, pp. 1065–1081.CrossRefGoogle Scholar
  20. 20.
    Sayadyan, Yu.V., Noveishaya geologicheskaya istoriya Armenii (Modern Geological History of Armenia), Yerevan: Gitutyun, 2009.Google Scholar
  21. 21.
    Sayadyan, Yu.V., Aleshinskaya, Z.V., and Khanzadyan, E.V., Post-glacial deposits and archeology of the coastal area of Lake Sevan, in Geologiya chetvertichnogo perioda (Geology of the Quaternary Period), Yerevan, 1977, p. 354.Google Scholar
  22. 22.
    Scott, B. and Price, S., Earthquake-induced structures in young sediments, Tectonophysics, 1988, vol. 147, pp. 165–170.CrossRefGoogle Scholar
  23. 23.
    Tinsley, J.C., Youd, T.L., Perkins, D.M., and Chen, A.T.F., Evaluating liquefaction potential, in Evaluating Earthquakes Hazards in the Los Angeles Region—An Earth Science Perspective, USGS, 1985, pp. 263–316.Google Scholar
  24. 24.
    Vardanyan, A.A., Study of the fine structure of the geomagnetic field in sedimentary rocks of Armenia, Cand. Sci. (Phys.–Math.) Dissertation, Tbilisi, 1986.Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  1. 1.Schmidt Institute of Physics of the Earth, Russian Academy of SciencesMoscowRussia

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