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Abstract <p>The Pb isotope composition of W–Cu–Sn ores of the Festivalnoe and Pravourmiyskoe deposits, flyschoid rocks of the Badzhal terrane, and ore-bearing granitoids from the Badzhal and Silinka complexes of the Badzhal–Komsomolsk metallogenic zone of the Sikhote-Alin was studied based on high-precision analysis data. These data and Sr–Sm–Nd analysis results suggest that the ore-magmatic systems of the Badzhal and Komsomolsk ore districts formed as the result of mantle–crust interaction during the Albian–Cenomanian orogenesis. Based on all the research results and taking into account the abnormal Sn content of the flyschoid rocks and ore-bearing granitoids, the authors suggestt that a granite-metamorphic layer of young continental crust, resulting from orogenesis, should be regarded as the ore-geochemical reservoir of the Badzhal–Komsomolsk metallogenic zone.</p>

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Crustal and Mantle Sources of Lead in W–Cu–Sn Ores of the Badzhal–Komsomolsk Metallogenic Zone of the Sikhote-Alin

  • 期刊论文

  • 发表日期：

    2025年6月23日

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  • V. V. Ratkin,
  • A. V. Chugaev,
  • I. A. Alexandrov,
  • B. I. Semenyak,
  • D. V. Tikhomirov,
  • A. Yu. Lebedev

摘要

Abstract

The Pb isotope composition of W–Cu–Sn ores of the Festivalnoe and Pravourmiyskoe deposits, flyschoid rocks of the Badzhal terrane, and ore-bearing granitoids from the Badzhal and Silinka complexes of the Badzhal–Komsomolsk metallogenic zone of the Sikhote-Alin was studied based on high-precision analysis data. These data and Sr–Sm–Nd analysis results suggest that the ore-magmatic systems of the Badzhal and Komsomolsk ore districts formed as the result of mantle–crust interaction during the Albian–Cenomanian orogenesis. Based on all the research results and taking into account the abnormal Sn content of the flyschoid rocks and ore-bearing granitoids, the authors suggestt that a granite-metamorphic layer of young continental crust, resulting from orogenesis, should be regarded as the ore-geochemical reservoir of the Badzhal–Komsomolsk metallogenic zone.