The Gold Mineralization of the Baranyevskoe Au-Ag Epithermal Deposit in Central Kamchatka
The Baranyevskoe Au-Ag epithermal deposit of low-sulfidation (LS) type is located on the Kamchatka Peninsula in the Neogene-Quaternary Central Kamchatka Volcanic Belt, where Au-bearing quartz veins are usually accompanied by veinlet stockworks. Two economic associations are typical of the Baranyevsk...
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MDPI AG
2021
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ftdoajarticles:oai:doaj.org/article:7a7fd662ef9541ebbb0ea39c910dad1c 2023-05-15T16:58:38+02:00 The Gold Mineralization of the Baranyevskoe Au-Ag Epithermal Deposit in Central Kamchatka Nadezhda Tolstykh Daria Bukhanova Maria Shapovalova Andrey Borovikov Maksim Podlipsky 2021-11-01T00:00:00Z https://doi.org/10.3390/min11111225 https://doaj.org/article/7a7fd662ef9541ebbb0ea39c910dad1c EN eng MDPI AG https://www.mdpi.com/2075-163X/11/11/1225 https://doaj.org/toc/2075-163X doi:10.3390/min11111225 2075-163X https://doaj.org/article/7a7fd662ef9541ebbb0ea39c910dad1c Minerals, Vol 11, Iss 1225, p 1225 (2021) Baranyevskoe deposit LS epithermal deposit gold-pyrite-quartz association gold-sulfosalt-quartz association Kamchatka Peninsula Mineralogy QE351-399.2 article 2021 ftdoajarticles https://doi.org/10.3390/min11111225 2022-12-31T08:05:34Z The Baranyevskoe Au-Ag epithermal deposit of low-sulfidation (LS) type is located on the Kamchatka Peninsula in the Neogene-Quaternary Central Kamchatka Volcanic Belt, where Au-bearing quartz veins are usually accompanied by veinlet stockworks. Two economic associations are typical of the Baranyevskoe deposit. The first corresponds to gold-pyrite-quartz association with low-grade native gold (521–738‱) intergrown with pyrite. Some accessory Au-Ag minerals within the early association were also identified: acanthite AgS 2 , hessite AgTe 2 , lenaite Ag(Fe,Cu)S 2 , petzite Ag 3 AuTe 2 , utenbogardite Ag 3 AuS 2 and unnamed Ag-Sb-As sulfosalts. The former Au-Ag minerals were most likely formed in the temperature range of 320–330 °C based on the study of arsenopyrite thermometers and fluid inclusions. The second, a gold-sulfosalt-quartz association, includes high-grade native gold (883-941‱) in intergrowth with chalcopyrite. Cuprous phases (bornite, chalcocite, heerite, native copper, Cu-Zn solid solutions), Bi-rich sulfosalts (aikinite PbCuBiS 3 , emplectite CuBiS 2 , witticenite Cu 3 BiS 3 ), stannoidite Cu 8 Fe 3 Sn 2 S 12 , mawsonite Cu 6 Fe 2 SnS 8 ), Au-bearing galena, Te-free and Bi-rich tetrahedrite-tennantite represent this association. Fluid inclusions in gold-sulfosalt-quartz association are characterized by homogenization temperature ranging from 226 to 298 °C, and salinity from 0.4 to 1.2 wt. % NaCl eq. Article in Journal/Newspaper Kamchatka Kamchatka Peninsula Directory of Open Access Journals: DOAJ Articles Kamchatka Peninsula ENVELOPE(160.000,160.000,56.000,56.000) Minerals 11 11 1225 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Baranyevskoe deposit LS epithermal deposit gold-pyrite-quartz association gold-sulfosalt-quartz association Kamchatka Peninsula Mineralogy QE351-399.2 |
spellingShingle |
Baranyevskoe deposit LS epithermal deposit gold-pyrite-quartz association gold-sulfosalt-quartz association Kamchatka Peninsula Mineralogy QE351-399.2 Nadezhda Tolstykh Daria Bukhanova Maria Shapovalova Andrey Borovikov Maksim Podlipsky The Gold Mineralization of the Baranyevskoe Au-Ag Epithermal Deposit in Central Kamchatka |
topic_facet |
Baranyevskoe deposit LS epithermal deposit gold-pyrite-quartz association gold-sulfosalt-quartz association Kamchatka Peninsula Mineralogy QE351-399.2 |
description |
The Baranyevskoe Au-Ag epithermal deposit of low-sulfidation (LS) type is located on the Kamchatka Peninsula in the Neogene-Quaternary Central Kamchatka Volcanic Belt, where Au-bearing quartz veins are usually accompanied by veinlet stockworks. Two economic associations are typical of the Baranyevskoe deposit. The first corresponds to gold-pyrite-quartz association with low-grade native gold (521–738‱) intergrown with pyrite. Some accessory Au-Ag minerals within the early association were also identified: acanthite AgS 2 , hessite AgTe 2 , lenaite Ag(Fe,Cu)S 2 , petzite Ag 3 AuTe 2 , utenbogardite Ag 3 AuS 2 and unnamed Ag-Sb-As sulfosalts. The former Au-Ag minerals were most likely formed in the temperature range of 320–330 °C based on the study of arsenopyrite thermometers and fluid inclusions. The second, a gold-sulfosalt-quartz association, includes high-grade native gold (883-941‱) in intergrowth with chalcopyrite. Cuprous phases (bornite, chalcocite, heerite, native copper, Cu-Zn solid solutions), Bi-rich sulfosalts (aikinite PbCuBiS 3 , emplectite CuBiS 2 , witticenite Cu 3 BiS 3 ), stannoidite Cu 8 Fe 3 Sn 2 S 12 , mawsonite Cu 6 Fe 2 SnS 8 ), Au-bearing galena, Te-free and Bi-rich tetrahedrite-tennantite represent this association. Fluid inclusions in gold-sulfosalt-quartz association are characterized by homogenization temperature ranging from 226 to 298 °C, and salinity from 0.4 to 1.2 wt. % NaCl eq. |
format |
Article in Journal/Newspaper |
author |
Nadezhda Tolstykh Daria Bukhanova Maria Shapovalova Andrey Borovikov Maksim Podlipsky |
author_facet |
Nadezhda Tolstykh Daria Bukhanova Maria Shapovalova Andrey Borovikov Maksim Podlipsky |
author_sort |
Nadezhda Tolstykh |
title |
The Gold Mineralization of the Baranyevskoe Au-Ag Epithermal Deposit in Central Kamchatka |
title_short |
The Gold Mineralization of the Baranyevskoe Au-Ag Epithermal Deposit in Central Kamchatka |
title_full |
The Gold Mineralization of the Baranyevskoe Au-Ag Epithermal Deposit in Central Kamchatka |
title_fullStr |
The Gold Mineralization of the Baranyevskoe Au-Ag Epithermal Deposit in Central Kamchatka |
title_full_unstemmed |
The Gold Mineralization of the Baranyevskoe Au-Ag Epithermal Deposit in Central Kamchatka |
title_sort |
gold mineralization of the baranyevskoe au-ag epithermal deposit in central kamchatka |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doi.org/10.3390/min11111225 https://doaj.org/article/7a7fd662ef9541ebbb0ea39c910dad1c |
long_lat |
ENVELOPE(160.000,160.000,56.000,56.000) |
geographic |
Kamchatka Peninsula |
geographic_facet |
Kamchatka Peninsula |
genre |
Kamchatka Kamchatka Peninsula |
genre_facet |
Kamchatka Kamchatka Peninsula |
op_source |
Minerals, Vol 11, Iss 1225, p 1225 (2021) |
op_relation |
https://www.mdpi.com/2075-163X/11/11/1225 https://doaj.org/toc/2075-163X doi:10.3390/min11111225 2075-163X https://doaj.org/article/7a7fd662ef9541ebbb0ea39c910dad1c |
op_doi |
https://doi.org/10.3390/min11111225 |
container_title |
Minerals |
container_volume |
11 |
container_issue |
11 |
container_start_page |
1225 |
_version_ |
1766050702017167360 |