First data on the mineralogy of the Evevpenta Epithermal silver–gold ore occurrence, Kamchatka, Russia

Zhegunov, P. S., Kutyrev, A. V. ORCID: https://orcid.org/0000-0001-5933-6455, Zhitova, E. S., Moskaleva, S. V. and Schweigert, P. E. 2024. First data on the mineralogy of the Evevpenta Epithermal silver–gold ore occurrence, Kamchatka, Russia. Journal of Volcanology and Seismology 18 (2) , pp. 149-164. 10.1134/S0742046324700489

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Abstract

The Evevpenta ore occurrence is situated in the northeastern part of the Central Kamchatka volcanic belt (Kamchatka Peninsula, Russia), and lies among andesitic volcanic complexes of the Neogene age. The ore bodies are veins, zones of quartz streaks, and hydrothermal breccias, accompanied by aureoles of argillization which transition into propylites at the periphery. The formation of noble-metal mineralization occurred through two phases: the hypogene (hydrothermal) phase and the hypergene phase. For the hypogene phase we have identified two mineral associations related to noble-metal mineralization: the Central area contains gold—telluride–quartz mineralization, while the Northern area hosts telluride–sulfide–quartz mineralization. The hypergene mineral association with native gold occurs within the Central area only. Based on data relating to the material composition of the ores we show that the Evevpenta ore occurrence is a typical member of epithermal reduction-alkaline or low sulfidation deposits.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Earth and Environmental Sciences
Publisher:	Springer
ISSN:	0742-0463
Date of Acceptance:	6 December 2023
Last Modified:	05 Nov 2024 16:00
URI:	https://orca.cardiff.ac.uk/id/eprint/173105

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