Journal of Volcanology and Seismology

, Volume 12, Issue 6, pp 397–411 | Cite as

The Deep Structure of the Central Kamchatka Depression: Geoelectrics and Seismic Tomography

  • Yu. F. MorozEmail author
  • L. I. Gontovaya
  • V. A. Loginov
  • I. S. Ulybyshev


Data from magnetotelluric sounding surveys (MTS) and seismic tomography were used to study the distribution of geoelectric and velocity inhomogeneities in the crust and upper mantle beneath the Central Kamchatka Depression. The geoelectric model for the depression was obtained using modern approaches and numerical modeling software for magnetotellurics. The main features of electrical conductivity have been identified for the sedimentary–volcanogenic cover and the lithosphere. We have detected crustal and mantle anomalies of higher conductivity in areas of recent volcanism. Anomalies of lower seismic velocities to depths around 200 km were detected in the crust and upper mantle. Transverse seismic tomography lines across the depression show crustal anomalies of lower seismic velocity existing in areas of active volcanoes. A technique has been proposed for an integrated interpretation of MTS and seismic tomography data. The technique was applied to unravel the origin of these anomalies of higher conductivity and lower seismic velocity and to estimate porosity in the rocks that contain magma melts and hydrothermal brine.



This work was supported by the Russian Foundation for Basic Research (project no. 16-05-00059a) and by the Far East Branch of the Russian Academy of Sciences (project no. 15-I-2-008).


  1. 1.
    Adamchuk, Yu.V. and Trubnikov, B.A., Elektroprovodnost’ tekushchei lavy yuzhnogo Novo-Tolbachinskogo proryva (Electrical Conductivity in the Flowing Lava Discharged by the Southern New Tolbachik Vent), Kurchatov Institute of Atomic Energy: IAE-2841, Moscow: ONTI IAE, 1977.Google Scholar
  2. 2.
    Avdeiko, G.P. and Palueva, A.A., The geodynamics of the Kamchatka subduction zone: Volcanism, earthquake hazard, and tsunami hazard, in Vulkanizm i geodinamika (Volcanism and Geodynamics), Proc. IV All-Russia symp. on volcanology and palaeovolcanology, Petropavlovsk-Kamchatskii, 2009, pp. 567–570.Google Scholar
  3. 3.
    Bahr, K., Interpretation of magnetotelluric impedance tensor: regional, induction and local telluric distortion, J. Geophys., 1988, vol. 62, pp. 119–127.Google Scholar
  4. 4.
    Belyavskii, V.V. and Aleksanova, E.D., A 3-D geoelectric model for the southern tip of Kamchatka, Fizika Zemli, 2014, no. 1, pp. 11–32.Google Scholar
  5. 5.
    Berdichevskii, M.N. and Dmitriev, V.I., Modeli i metody magnitotelluriki (Models and Methods of Magnetotellurics), Moscow: Nauchnyi Mir, 2009.Google Scholar
  6. 6.
    Gorbatov, A., Dominguez, J., Suarez, G., et al., Tomographic imaging of the P-wave velocity structure beneath the Kamchatka peninsula, Geophys. J. Intern., 1999, vol. 137, no. 2, pp. 269–279.CrossRefGoogle Scholar
  7. 7.
    Frischknecht, F.C., Fields about an Oscillating Magnetic Dipole over a Two-Layer Earth, and Application to Ground and Airborne Electromagnetic Surveys, Quarterly Colorado School of Mines, 1967, vol. 62, no. 1.Google Scholar
  8. 8.
    Geologiya SSSR. Kamchatka, Kuril’skie ostrova. Geologicheskoe opisanie (The Geology of the USSR. Kamchatka, Kuril Is.: A Geological Description), vol. 31, Moscow: Nedra, 1964.Google Scholar
  9. 9.
    Glubinnoe seismicheskoe zondirovanie Kamchatki (Deep Seismic Sounding of Kamchatka), Popov, A.A. and Gnibidenko, G.S., Eds., Moscow: Nauka, 1978.Google Scholar
  10. 10.
    Gontovaya, L.I., Levina, V.I., Sanina, I.A., et al., Velocity inhomogeneities in the lithosphere beneath Kamchatka, Vulkanol. Seismol., 2003, no. 4, pp. 56–64.Google Scholar
  11. 11.
    Gontovaya, L.I., Popruzhenko, S.V., and Nizkous, I.V., Upper mantle structure in the ocean–continent transition zone: Kamchatka, J. Volcanol. Seismol., 2010, vol. 4, no. 4, pp. 232–247.CrossRefGoogle Scholar
  12. 12.
    Keller, G.V. and Rapolla, A., Electrical prospecting methods in volcanic and geothermal environments, in Physical Volcanology, Civetta, L., Gasparini, P., Luongo, G., and Rapolla, A., Eds., Amsterdam: Elsevier, 1974, pp. 133–166.Google Scholar
  13. 13.
    Kulakov, I.Yu., Kukarina, E.V., Gordeev, E.I., et al., Magma sources in the matnle wedge beneath the Klyuchevskoi Volcanic Cluster and beneath Kizimen Volcano, Kamchatka as inferred from seismic tomography, Geol. Geofiz., 2016, vol. 57, no. 1, pp. 109–124.Google Scholar
  14. 14.
    Lebedev, E.B., The influence of water on physical properties of magma melts, in Fiziko-khimicheskie problemy gidrotermal’nykh magmaticheskikh protsessov (Physical and Chemical Problems in Hydrothermal Magmatic Processes), Moscow: Nauka, 1975, pp. 48–54.Google Scholar
  15. 15.
    Lyakhovitskii, F.M., Khmelevskoi, V.K., and Yashchenko, Z.G., Inzhenernaya geofizika (Engineering Geophysics), Moscow: Nedra, 1984.Google Scholar
  16. 16.
    Mackie, K.L., Smith, J.T., and Madden, T.R., Three-dimensional electromagnetic modeling using finite difference equations: the magnetotelluric example, Radio Science, 1994, no. 4, pp. 923–935.Google Scholar
  17. 17.
    Moroz, Yu.F., Elektroprovodnost’ zemnoi kory i verkhnei mantii Kamchatki (The Electric Conductivity of the Crust and Upper Mantle in Kamchatka), Moscow; Nauka, 1991.Google Scholar
  18. 18.
    Moroz, Yu.F. and Moroz, T.A., Deep conductive zones in the junction area between the Kuril–Kamchatka and Aleutian island arcs, Fizika Zemli, 2006, no. 6, pp. 60–68.Google Scholar
  19. 19.
    Moroz, Yu.F. and Moroz, T.A., 3-D numerical modeling of the magnetotelluric field in Kamchatka, Fizika Zemli, 2011, no. 2, pp. 64–73.Google Scholar
  20. 20.
    Moroz, Yu.F. and Shilenko, R.I., The structure of the sedimentary–volcanogenic deposits in the Central Kamchatka Depression as inferred from geophysical data, Sov. Geol., 1982, no. 8, pp. 105–108.Google Scholar
  21. 21.
    Moroz, Yu.F., Gontovaya, L.I., and Zubin, M.I., Deep structure of Kamchatka from geophysical data, Fizika Zemli, 1996, no. 12, pp. 92–99.Google Scholar
  22. 22.
    Moroz, Yu.F., Laguta, N.A., and Moroz, T.A., Magnetotelluric sounding of Kamchatka, J. Volcanol. Seismol., 2008, vol. 2, no. 2, pp. 83–93.CrossRefGoogle Scholar
  23. 23.
    Murase, T. and McBirney, A., Properties of some common igneous rocks and their melts at high temperatures, Bulletin of the Geological Society of America, 1973, vol. 84, no. 11, pp. 3563–3593.CrossRefGoogle Scholar
  24. 24.
    Nizkous, I., Kissling, E., Gontovaya, L., et al., Correlation of Kamchatka lithosphere velocity anomalies with subduction processes, in Volcanism and Subduction: The Kamchatka Region, Geophysical Monograph Series 172, AGU, doi 10/1029/172GM09, 2007, pp. 97–106.10/1029/172GM09Google Scholar
  25. 25.
    Ocherki geologicheskogo razvitiya Kamchatki (Sketches on the Geological Evolution of Kamchatka), Moscow: Nauka, 1987.Google Scholar
  26. 26.
    Rai, C.S. and Manghanani, M.H., Electrical conductivity of ultramafic rock to 1820 Kelvin, Physics of the Earth and Planetary Interiors, 1978, vol. 17, pp. 6–13.CrossRefGoogle Scholar
  27. 27.
    Shankland, T.I. and Waff, H.S., Conductivity in fluid-bearing rocks, JGR, 1974, vol. 79, no. 32, pp. 5409–5417.Google Scholar
  28. 28.
    Swift, C.M., A Magnetotelluric Investigation of an Electrical Conductivity Anomaly in the Southwestern United States, Ph. D. Dissertation, MIT, Cambridge, 1967, 248 pp.Google Scholar
  29. 29.
    Van’yan, L.L., Elektromagnitnye zondirovaniya (Electromagnetic Sounding), Moscow: Nauchnyi Mir, 1997.Google Scholar
  30. 30.
    Van’yan, L.L. and Khaindman, R.D., On the origin of electrical conductivity in the consolidated crust, Fizika Zemli, 1996, no. 4, pp. 5–11.Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • Yu. F. Moroz
    • 1
    • 2
    • 3
    Email author
  • L. I. Gontovaya
    • 1
  • V. A. Loginov
    • 1
    • 3
  • I. S. Ulybyshev
    • 1
    • 3
  1. 1.Institute of Volcanology and Seismology, Far East Branch, Russian Academy of SciencesPetropavlovsk-KamchatskiiRussia
  2. 2.Geological Institute, Siberian Branch, Russian Academy of SciencesUlan-UdeRussia
  3. 3.Vitus Bering Kamchatka State UniversityPetropavlovsk-KamchatskiiRussia

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