Geology of Ore Deposits

, Volume 54, Issue 7, pp 580–588 | Cite as

High-alumina titanite in mineral assemblages of the Berezitovy gold-base-metal deposit, Upper Amur Region

  • A. S. Vakh
  • O. V. Avchenko
  • A. A. Karabtsov
  • V. A. Stepanov
Minerals and Parageneses of Minerals
  • 102 Downloads

Abstract

Grothite—a rare Al- and F-rich variety of titanite—was identified in two different gold-bearing mineral assemblages of the Berezitovy gold-base-metal deposit, Upper Amur Region, Russian Far East. Grothite is associated with quartz, orthoclase, chlorite, muscovite, tourmaline, almandine-spessartine garnet, ilmenite, pyrophanite, magnetite, fluorapatite, and sulfides. Grothite forms numerous scattered lamellar aggregates 20–100 μm in size with a relatively homogeneous structure. The lamellae grow in chlorite or between chlorite and orthoclase. According to microprobe analyses, variations in major elements of grothite are as follows (wt %): 30.56–34.07 SiO2, 7.91–12.71 Al2O3, 22.83–28.29 TiO2, 23.55–29.21 CaO, 0.52–4.25 FeO, and 2.19–6.16 F. It is suggested that grothite appeared in the gold-bearing mineral assemblages of the Berezitovy deposit due to the specifics of the primary composition of the host rocks and physicochemical conditions of the fluid regime at the final stage of deposit formation.

Keywords

Pyrite Chlorite Galena Tourmaline Titanite 

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References

  1. Aleksandrov, S.M. and Troneva, M.A., Composition, Mineral Assemblages, and Genesis of Titanite and Malayaite in Skarns, Geochem. Int., 2007, vol. 45, no. 10, p. 1012.CrossRefGoogle Scholar
  2. Castelli, Daniele and Rubatto, Daniela., Stability of Al- and F-Rich Titanite in Metacarbonate: Petrologic and Isotopic Constrains from a Polymetamorphic Eclogitic Marble of the Internal Sesia Zone (Western Alps), Contrib. Miner. Petrol., 2002, vol. 142, no. 6, pp. 627–639.CrossRefGoogle Scholar
  3. Franz, G. and Spear, F., Aluminous Titanite (Sphene) from the Eclogite Zone, South-Central Tauern Window, Austria, Chem. Geol., 1985, vol. 50, nos. 1/3, pp. 33–46.CrossRefGoogle Scholar
  4. Gaines, R.V. et al., Dana’s New Mineralogy: the System of Mineralogy of J.D. Dana and E.S. Dana, New York: Wiley, 1997.Google Scholar
  5. Geodinamika, magmatizm i metallogeniya Vostoka Rossii (Geodynamics, Magmatism and Metallogeny in the East of Russia), A.I. Khanchuk, Ed., Vladivostok: Dal’nauka, 2006, Book 1.Google Scholar
  6. Kwark, T.A.P., The Geology and Geochemistry of the Zoned An-W-F-Be Skarns at Mt. Lindsay, Tasmania, Australia, Econ. Geol., 1983, vol. 78, no. 7, pp. 1440–1465.CrossRefGoogle Scholar
  7. Mineraly. Spravochnik. Sloistye silikaty (Minerals. Handbook. Layered Silicates), Moscow: Nauka, 1992, vol. 4,issue 2.Google Scholar
  8. Perevoznikova, E.V. and Miroshnichenko, N.V., Tausonite and Fluorine-Alumina Titanite in Metamorphosed Metalliferous Sedimentary Rocks of the Sikhote-Alin Triassic Cherty Sequence, Tikhookean. Geol., 2009, vol. 28, no. 3, pp. 101–105.Google Scholar
  9. Stepanov, V.A., Mel’nikov, A.V., Vakh, A.S., V’yunov, D.L., Dementienko, A.I., and Perestoronin, A.E., Priamurskaya zolotorudnaya provintsiya (Amur Gold Province), Blagoveshchensk: Amur State Univ., 2008.Google Scholar
  10. Strikha, V.E., Petruk, N.N., Vakhtomin, K.D., Vol’skaya, I.P., Korshunov, A.M., and Shergina, Yu.P., Geology of the Khaikta Intrusive Complex, the Upper Amur Region, Tikhookean. Geol., 2000, vol. 19, no. 5, pp. 25–27.Google Scholar
  11. Vakh, A.S. and Sapin, V.I., The First Finding of Ferroan Gahnite in the Far East, Dokl. AN SSSR, 1982, vol. 246, no. 5, pp. 1199–1202.Google Scholar
  12. Vakh, A.S., Ignat’ev, A.V., and Borovik, L.V. Application of Geothermometers to Estimate Thermodynamic Parameters of the Formation of Gold-Base-Metal Ores at a Deposit in the Upper Amur Region, in Termodinamika v geologii (Thermodynamics in Geology), Sverdlovsk: UrO AN SSSR, 1988, vol. 1, pp. 74–75.Google Scholar
  13. Vakh, A.S., Stepanov, V.A., and Avchenko, O.V., Beterzitovy Gold-Base-Metal Deposit: Geology and Composition of Ore, Rudy Metally, 2008, no. 6, pp. 44–55.Google Scholar

Copyright information

© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  • A. S. Vakh
    • 1
  • O. V. Avchenko
    • 1
  • A. A. Karabtsov
    • 1
  • V. A. Stepanov
    • 2
  1. 1.Far East Geological Institute, Far East BranchRussian Academy of SciencesVladivostokRussia
  2. 2.Geotechnical Research Center, Far East BranchRussian Academy of SciencesPetropavlovsk-KamchatskiiRussia

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