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A New Paleomagnetic Pole for the Silurian Geological Sequences of Tuva

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Abstract

New paleomagnetic data are determined for Silurian rocks of Tuva. One-, two-, and three-component magnetization is distinguished for the rocks. The low-temperature (LT) components of magnetization were close to the directions of the present-day or Cenozoic magnetic field of Tuva. The prefold high-temperature (HT) magnetization is considered close to primary as a result of fold and reversal test. Its age is almost identical to the age of the formation of Silurian rocks, which were formed at 20–30° N. The Silurian paleomagnetic pole calculated can be used to describe the movement of the Caledonian block of Central Asia as well as probably of Siberia, if these blocks were combined tectonically prior to the Silurian. It is characterized by Φ = 4.6, Λ = 146, and А95 = 6.8.

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ACKNOWLEDGMENTS

This work was supported by the Russian Foundation for Basic Research, project no. 18-05-00022.

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Authors and Affiliations

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

    D. V. Kovalenko &  K. V. Lobanov

Authors
  1. D. V. Kovalenko
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  2. K. V. Lobanov
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Correspondence to D. V. Kovalenko.

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Translated by I. Melekestseva

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Kovalenko, D.V., Lobanov, K.V. A New Paleomagnetic Pole for the Silurian Geological Sequences of Tuva. Dokl. Earth Sc. 483, 1491–1494 (2018). https://doi.org/10.1134/S1028334X18120048

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  • DOI: https://doi.org/10.1134/S1028334X18120048

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