Tourmaline mineralization in carbonaceous shale of the Baikal deposit (South Ural)

Authors

  • Aleksandr Vladimirovich Snachev Institute of Geology, UFRC RAS
  • Alexandra Vyacheslavovna Kolomoets Orenburg State University
  • Mikhail Anatolyevich Rassomakhin South Ural Federal Research Center and Environmental Geoscience Mineralogy of the Ural Branch of the Russian Academy of Sciences
  • Vladimir Ivanovich Snachev Institute of Geology, UFRC RAS
  • R.S. Kisil LLC "Gold of Udinsk"

DOI:

https://doi.org/10.17072/chirvinsky.2021.217

Keywords:

South Ural, Kumak ore field, Baikal deposit, carbonaceous shale, black shale, noble metals, gold, tourmaline

Abstract

The article discusses the geological structure of the Baikal deposit, located within the Kumak ore field and confined to the black shale of the Bredy Formation (C1bd). It has been established that the gold mineralization within the occurrence is confined mainly to the members of quartz-mica-tourmaline metasomatically altered carbonaceous shales. Gold is noted here in intergrowth with tourmaline. In terms of their chemical composition, tourmalines belong to dravite and foitite and are close to those of orogenic gold and gold-sulfide deposits. The close intergrowth of thin needle-like tourmaline and gold indicates the synchrony of their formation and allows the manifestation of Baikal deposit to be attributed to the quartz-tourmaline formation.

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Published

2021-10-10

How to Cite

Snachev А. В., Kolomoets А. В., Rassomakhin М. А., Snachev В. И., & Kisil Р. (2021). Tourmaline mineralization in carbonaceous shale of the Baikal deposit (South Ural). Problems of Mineralogy, Petrography and Metallogeny. Scientific Readings in Memory of P.N. Chirvinsky, (24), 217–222. https://doi.org/10.17072/chirvinsky.2021.217

Issue

No. 24 (2021): Чтения памяти П.Н. Чирвинского 2021

Section

Статьи