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Doklady Earth Sciences

, Volume 472, Issue 2, pp 173–177 | Cite as

A unique ore-placer cluster with high-Hg gold mineralization in the Amur region (Russia)

  • V. A. Stepanov
  • V. G. Moyseenko
  • A. V. Melnikov
Geology
  • 19 Downloads

Abstract

This work presents the geological structure and a description of gold-ore manifestations and gold placers in the Un’ya–Bom ore-placer cluster of the Amur gold-bearing province. The host rocks are Late Paleozoic and Mesozoic black-shale formations. Intrusive formations are rare. The sublatitudinal Un’ya thrust fault, along which Paleozoic sandstones overlap Mesozoic flyschoid deposits, is regarded as an orecontrolling structure. Gold–quartz and low-sulfide ores are confined to quartz-vein zones. Ore minerals are arsenopyrite, scheelite, ferberite, galena, and native gold. Gold-ore manifestations and placers contain high-Hg native gold. The high Hg content in native gold is explained by the occurrence of the eroded frontal part of the gold-ore pipe in the ore cluster, a source of native gold.

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References

  1. 1.
    V. A. Stepanov and V. G. Moiseenko, Dokl. Earth Sci. 421 (5), 779–781 (2008).CrossRefGoogle Scholar
  2. 2.
    N. V. Petrovskaya, Native Gold (Nauka, Moscow, 1973) [in Russian].Google Scholar
  3. 3.
    V. A. Stepanov, Geology of Aurum, Argentum and Hydrargyrum, Part 2: Aurum and Hydrargyrum in Amur River Province (Dal’nauka, Vladivostok, 2000) [in Russian].Google Scholar
  4. 4.
    V. A. Stepanov, Zoning of Aurum-Quartz Metallizing Process in Central Kolyma (Dal’nauka, Vladivostok, 2001) [in Russian].Google Scholar
  5. 5.
    V. A. Stepanov, A. V. Melnikov, A. S. Vakh, et al., Gold Ore Amur River Province (Amur State Univ., Blagoveshchensk, 2008) [in Russian].Google Scholar
  6. 6.
    M. S. Fisher, Bull. - Inst. Min. Metall. 2 (9) (1935).Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • V. A. Stepanov
    • 1
  • V. G. Moyseenko
    • 1
  • A. V. Melnikov
    • 2
  1. 1.Geotechnological Research Center, Far East BranchRussian Academy of SciencesPetropavlovsk-KamchatskyRussia
  2. 2.Institute of Geology and Nature Management, Far East BranchRussian Academy of SciencesBlagoveshchensk, Amur oblastRussia

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