Skip to main content
SpringerLink
Log in

Geophysical Studies of the Seymour Sewell Seamount on the Flank of the Central Indian Ridge

  • MARINE GEOLOGY
  • Published:
Oceanology Aims and scope

Abstract

The volcanic structure of the Seymour Sewell seamount appears to have formed over a relatively long time in at least two stages. Its main massif was formed as a result of volcanic activity in the axial zone of the Central Indian Ridge about 16.3 Ma ago for about 0.5 Ma. Then the volcanic process temporarily stopped and the seamount drifted 260 km southwest along with the supporting African plate. In the last epoch of direct magnetic polarity (Brunes, 680 ka ago), as a result of a new cycle of volcanotectonic activity, the southeastern segment of the seamount collapsed. At this time, a new portion of magmatic material with a high ferrous mineral content was erupted here, reflected in the more intense magnetic anomaly confined to this part of the seamount.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.
Fig. 6.
Fig. 7.
Fig. 8.
Fig. 9.
Fig. 10.

Similar content being viewed by others

REFERENCES

  1. I. A. Veklich, A. N. Ivanenko, and O. V. Levchenko, “Anomalous magnetic field ΔTa in the equatorial part of the Indian Ocean (field measurements),” Vestn. KRAUNTs. Nauki o Zemle, No. 45, 17–37 (2020).

  2. A. M. Gorodnitskii, Structure of Oceanic Lithosphere and Formation of Underwater Mountains (Nauka, Moscow, 1985) [in Russian].

    Google Scholar 

  3. A. N. Ivanenko, “Simulation of the Magnetic Field of Underwater Mountains,” in Magnetic Field of the Ocean, Ed. by A. M. Gorodnitskii (Nauka, Moscow, 1993) [in Russian].

    Google Scholar 

  4. G. I. Kalyaev, V. N. Syrskii, A. Ya. Nasirov, and A. I. Avdeev, Main Features of the Relief and Tectonics of the Arabian-Indian Ridge (Inst. Geolog. Nauk AN USSR, Kiev, 1979) [in Russian].

    Google Scholar 

  5. O. V. Levchenko, R. A. Ananyev, I. A. Veklich, et al., “Multidisciplinary studies of the underwater mountains in the bottom of the northern segment of the Eastern-Indian Ridge,” Vestnik KRAUNTs. Nauki o Zemle. 2018. No. 3 90–104 (2018).

  6. O. V. Levchenko and S. M. Shapovalov, “Return of Russian oceanographers to the Indian Ocean: Multidisciplinary study during the 42nd cruise of the research vessel Akademik Boris Petrov,” Oceanology 59, 164—166 (2019).

    Article  Google Scholar 

  7. Geological and Geophysical Atlas of the Indian Ocean, Ed. by Udintsev (AN SSSR and Glav. Uprav. Geodez. Kartograf., Moscow, 1975) [in Russian].

  8. R. J. Blakely, Potential Theory in Gravity and Magnetic Applications (Cambridge Univ. Press, Cambridge, 1995).

    Book  Google Scholar 

  9. GEBCO (General Bathymetric Chart of the Oceans). The GEBCO_2020 Grid. http://www.gebco.net.

  10. GEBCO Gazetteer of Undersea Feature Names, www.gebco.net, https://www.ngds.noaa.gov/gazetteer.

  11. D. Gerovska and M. J. Arauzo-Bravo, “Calculation of magnitude magnetic transforms with high centricity and low dependence on the magnetization vector direction,” Geophysics 71, 121–130 (2006).

    Article  Google Scholar 

  12. The Global Centroid-Moment-Tensor (CMT) Project. http://www.globalcmt.org/CMTsearch.html.

  13. S. D. Iyer, P. Das, and N. G. Kalangutkar, “Seamounts–windows of opportunities and the Indian scenario,” Current Science 102, 1382–1391 (2012).

    Google Scholar 

  14. K. A. Kamesh Raju, K. Samudrala, R. K. Drolia, et al., “Segmentation and morphology of the Central Indian Ridge between 3° S and 11° S, Indian Ocean,” Tectonophysics 554–557, 114–126 (2012).

  15. National Geophysical Data Center (NGDC), https:// maps.ngdc.noaa.gov/viewers/geophysics/.

  16. National Geophysical Data Center (NGDC), www.ngdc. noaa.gov/mgg/trk/trackline/robert_d._conrad/rc1215/.

  17. D. Ray, K. A. Kamesh Raju, E. T. Baker, et al., “Hydrothermal plumes over the Carlsberg Ridge, Indian Ocean,” Geochem. Geophys. Geosyst. 13, Q01009 (2012).

    Article  Google Scholar 

  18. K. V. L. N. S. Sarma, M. V. Ramana, V. Subrahmanyam, et al., “Seamounts an additional tool to confirm the nature of the crust and to locate possible mineral resources for dredging,” Marine Georesources and Geotechnology 16, 41–51 (1998).

    Article  Google Scholar 

Download references

Funding

The study was carried within a state task (topic no. 0128-2021-0005, O.V. Levchenko, I.A. Veklich, and A.N. Ivanenko; and topic no. 0135-2019-0076, N.N. Turko); it was supported by the Russian Foundation for Basic Research (project no. 19-05-00680).

Author information

Authors and Affiliations

  1. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia

    O. V. Levchenko, I. A. Veklich & A. N. Ivanenko

  2. Geological Institute, Russian Academy of Sciences, Moscow, Russia

    N. N. Turko

Authors
  1. O. V. Levchenko
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. I. A. Veklich
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. N. Ivanenko
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. N. N. Turko
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding authors

Correspondence to O. V. Levchenko, I. A. Veklich, A. N. Ivanenko or N. N. Turko.

Ethics declarations

The authors declare that they have no conflicts of interest.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Levchenko, O.V., Veklich, I.A., Ivanenko, A.N. et al. Geophysical Studies of the Seymour Sewell Seamount on the Flank of the Central Indian Ridge. Oceanology 62, 550–560 (2022). https://doi.org/10.1134/S0001437022040075

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S0001437022040075

Keywords:

Search

Navigation