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Geochemical and Sr–Nd isotope evidences of the suprasubduction nature of mesozoic magmatism in the Mongol–Okhotsk Sector of the Pacific Fold Belt

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Abstract

In this article we present geochemical and isotope characteristics of rocks of the Unerikan, Selitkan and Aezop–Yamalin volcano–plutonic zones of the eastern termination of the Mongol–Okhotsk Orogenic Belt. The obtained data demonstrate that the Mesozoic igneous rocks of the Mongol–Okhotsk sector of the Pacific Folded Belt were formed due to the melting of the continental crust in a tectonic setting corresponding to a suprasubduction one.

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Authors and Affiliations

  1. Institute of Geology and Nature Management, Far East Branch, Russian Academy of Sciences, per. Relochnyi 1, Blagoveshchensk, 675000, Russia

    I. M. Derbeko

  2. Institute of the Geology of Ore Deposits, Petrography, Mineralogy, and Geochemistry, Russian Academy of Sciences, Staromonetny per. 35, Moscow, 119017, Russia

    A. V. Chugaev, T. I. Oleinikova & N. S. Bortnikov

Authors
  1. I. M. Derbeko
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  2. A. V. Chugaev
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  3. T. I. Oleinikova
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  4. N. S. Bortnikov
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Correspondence to I. M. Derbeko.

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Original Russian Text © I.M. Derbeko, A.V. Chugaev, T.I. Oleinikova, N.S. Bortnikov, 2016, published in Doklady Akademii Nauk, 2016, Vol. 466, No. 4, pp. 462–466.

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Derbeko, I.M., Chugaev, A.V., Oleinikova, T.I. et al. Geochemical and Sr–Nd isotope evidences of the suprasubduction nature of mesozoic magmatism in the Mongol–Okhotsk Sector of the Pacific Fold Belt. Dokl. Earth Sc. 466, 138–141 (2016). https://doi.org/10.1134/S1028334X16020069

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  • DOI: https://doi.org/10.1134/S1028334X16020069

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