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New Data on the Structure of the Megatransform System of the Doldrums (Central Atlantic)

  • GEOLOGY
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Abstract

The geological and geophysical data acquired during cruise 45 of R/V Akademik Nikolaj Strakhov regarding the structure of the Doldrums megatransform system in the Central Atlantic are presented. Taking into account the data of the previous expeditions, the structure of this region is examined in detail. The bathymetric data confirm the complex morphology, consisting of five dextral transform faults, separated by four active intra-transform rift segments and indicates the variability of tectonic conditions in this region. The dredged rocks are represented by the entire spectrum from the mantle to the upper crustal varieties and, together with the detailed topographic data, make it possible to identify the origin of the key structures in the Doldrums megatransform system.

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Funding

This work was carried out under the state programs of basic scientific research of State Academy of Sciences (project nos. 0135–2019–0050, 0135–2016–0013, 0137–2019–0012, 0136–2018–0025), was supported in part by the Russian Foundation for Basic Research (project nos. 18–55–7806 Ital_t, 18–05–00001, 18–05–00691), and by the Bilaterale CNR and Italian Programma di Rilevante Interesse Nazionale.

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Authors and Affiliations

  1. Geological Institute, Russian Academy of Sciences, 119017, Moscow, Russia

    S. G. Skolotnev, A. A. Peyve, S. Yu. Sokolov, K. O. Dobroliubova & N. P. Chamov

  2. Department of Earth and Environmental, University of Pavia, Pavia, Italy

    A. Sanfilippo & C. Sani

  3. National Institute of Geophysics and Volcanology, Rome, Italy

    F. Muccini

  4. Center for Petrographic and Geochemical Studies CNRS, Vandoeuvre-les-Nancy, France

    C. Ferrando

  5. Institute of Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences, 119017, Moscow, Russia

    A. N. Pertsev & K. N. Sholukhov

  6. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, 119991, Moscow, Russia

    A. S. Gryaznova

  7. Polar Marine Geological Prospecting Expedition, 189510, Lomonosov, St. Petersburg, Russia

    A. S. Bich

Authors
  1. S. G. Skolotnev
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  2. A. Sanfilippo
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  3. A. A. Peyve
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  4. F. Muccini
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  5. S. Yu. Sokolov
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  6. C. Sani
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  7. K. O. Dobroliubova
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  8. C. Ferrando
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  9. N. P. Chamov
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  10. A. N. Pertsev
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  11. A. S. Gryaznova
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  12. K. N. Sholukhov
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  13. A. S. Bich
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Corresponding author

Correspondence to A. A. Peyve.

Additional information

Translated by L. Mukhortova

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Skolotnev, S.G., Sanfilippo, A., Peyve, A.A. et al. New Data on the Structure of the Megatransform System of the Doldrums (Central Atlantic). Dokl. Earth Sc. 491, 131–134 (2020). https://doi.org/10.1134/S1028334X20030186

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  • DOI: https://doi.org/10.1134/S1028334X20030186

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