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Conditions of the Formation of Unique Mineralization with Yushkinite V1 – xS · n[(Mg,Al)(OH)2] in Quartz–Calcite Veins, Pai-Khoi Ridge: Evidence from Study of Fluid Inclusions

Abstract

The results of the study of fluid inclusions in quartz from quartz–calcite veins with unique yushkinite mineralization are reported. For the first time, it was proved that their formation occurred under sharply reducing conditions. The mineral formation medium was enriched in calcium and magnesium chlorides and hydrogen sulfide. The temperature of mineral formation was ~120–150°С.

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ACKNOWLEDGMENTS

The authors are grateful to the reviewer for valuable comments and suggestions.

Funding

This study was carried out as a part of a State Task, project no. AAAA–A17–117121270036–7, Institute of Geology, Federal Research Center, Komi Science Center, Ural Branch, Russian Academy of Sciences. The analytical studies were conducted at the Geonauka Center for Collective Use.

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Correspondence to N. V. Sokerina.

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Translated by A. Bobrov

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Sokerina, N.V., Kovalchuk, N.S., Isaenko, S.I. et al. Conditions of the Formation of Unique Mineralization with Yushkinite V1 – xS · n[(Mg,Al)(OH)2] in Quartz–Calcite Veins, Pai-Khoi Ridge: Evidence from Study of Fluid Inclusions. Dokl. Earth Sc. 492, 411–414 (2020). https://doi.org/10.1134/S1028334X20060197

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Keywords:

  • yushkinite
  • fluid inclusions
  • vein quartz
  • hydrogen sulfide
  • hydrocarbons