Metamorphic Conditions and Raman Spectroscopic Carbonaceous Material Thermometry of Host Schists of Olympiada and Eldorado Gold Deposits (Yenisey Ridge, Russia)

Metamorphic processes play a key role in forming orogenic gold deposits. In this paper, we present new evidence that host schists of the two largest gold deposits of the Yenisey ridge (Russia) Olympiada and Eldorado underwent a single stage of metamorphism in contrast to surrounding blocks. This met...

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Autores principales:	Vasiliy Sukhorukov, Valeriya Volkova, Peter Nevolko, Pavel Kozlov
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	Yenisey Ridge metamorphism gold deposits Ar-Ar Raman spectra carbonaceous material Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/51ee607eb1f24998bd721179db66ac6b
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spelling	oai:doaj.org-article:51ee607eb1f24998bd721179db66ac6b2021-11-25T17:42:53ZMetamorphic Conditions and Raman Spectroscopic Carbonaceous Material Thermometry of Host Schists of Olympiada and Eldorado Gold Deposits (Yenisey Ridge, Russia)10.3390/geosciences111104522076-3263https://doaj.org/article/51ee607eb1f24998bd721179db66ac6b2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3263/11/11/452https://doaj.org/toc/2076-3263Metamorphic processes play a key role in forming orogenic gold deposits. In this paper, we present new evidence that host schists of the two largest gold deposits of the Yenisey ridge (Russia) Olympiada and Eldorado underwent a single stage of metamorphism in contrast to surrounding blocks. This metamorphism is of moderate thermal gradient and belongs to the Barrovian type, which is typical for the collisional event in the time range 800–850 Ma. The new Ar/Ar age data presented in this paper and the review of magmatic and metamorphic events and ore-forming processes indicate that the most productive stage (gold-sulfide-quartz) correlates well in time with the regional metamorphism of the Barrovian type. This indicates that metamorphic processes can have a crucial role in forming gold deposits of the Yenisey ridge. Carbonaceous material thermometry indicates a wide range of obtained temperatures around 90–150 °C around the mean temperature for each sample. The highest temperatures are close to the peak metamorphic temperatures estimated by garnet-biotite thermometry.Vasiliy SukhorukovValeriya VolkovaPeter NevolkoPavel KozlovMDPI AGarticleYenisey Ridgemetamorphismgold depositsAr-ArRaman spectracarbonaceous materialGeologyQE1-996.5ENGeosciences, Vol 11, Iss 452, p 452 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Yenisey Ridge metamorphism gold deposits Ar-Ar Raman spectra carbonaceous material Geology QE1-996.5
spellingShingle	Yenisey Ridge metamorphism gold deposits Ar-Ar Raman spectra carbonaceous material Geology QE1-996.5 Vasiliy Sukhorukov Valeriya Volkova Peter Nevolko Pavel Kozlov Metamorphic Conditions and Raman Spectroscopic Carbonaceous Material Thermometry of Host Schists of Olympiada and Eldorado Gold Deposits (Yenisey Ridge, Russia)
description	Metamorphic processes play a key role in forming orogenic gold deposits. In this paper, we present new evidence that host schists of the two largest gold deposits of the Yenisey ridge (Russia) Olympiada and Eldorado underwent a single stage of metamorphism in contrast to surrounding blocks. This metamorphism is of moderate thermal gradient and belongs to the Barrovian type, which is typical for the collisional event in the time range 800–850 Ma. The new Ar/Ar age data presented in this paper and the review of magmatic and metamorphic events and ore-forming processes indicate that the most productive stage (gold-sulfide-quartz) correlates well in time with the regional metamorphism of the Barrovian type. This indicates that metamorphic processes can have a crucial role in forming gold deposits of the Yenisey ridge. Carbonaceous material thermometry indicates a wide range of obtained temperatures around 90–150 °C around the mean temperature for each sample. The highest temperatures are close to the peak metamorphic temperatures estimated by garnet-biotite thermometry.
format	article
author	Vasiliy Sukhorukov Valeriya Volkova Peter Nevolko Pavel Kozlov
author_facet	Vasiliy Sukhorukov Valeriya Volkova Peter Nevolko Pavel Kozlov
author_sort	Vasiliy Sukhorukov
title	Metamorphic Conditions and Raman Spectroscopic Carbonaceous Material Thermometry of Host Schists of Olympiada and Eldorado Gold Deposits (Yenisey Ridge, Russia)
title_short	Metamorphic Conditions and Raman Spectroscopic Carbonaceous Material Thermometry of Host Schists of Olympiada and Eldorado Gold Deposits (Yenisey Ridge, Russia)
title_full	Metamorphic Conditions and Raman Spectroscopic Carbonaceous Material Thermometry of Host Schists of Olympiada and Eldorado Gold Deposits (Yenisey Ridge, Russia)
title_fullStr	Metamorphic Conditions and Raman Spectroscopic Carbonaceous Material Thermometry of Host Schists of Olympiada and Eldorado Gold Deposits (Yenisey Ridge, Russia)
title_full_unstemmed	Metamorphic Conditions and Raman Spectroscopic Carbonaceous Material Thermometry of Host Schists of Olympiada and Eldorado Gold Deposits (Yenisey Ridge, Russia)
title_sort	metamorphic conditions and raman spectroscopic carbonaceous material thermometry of host schists of olympiada and eldorado gold deposits (yenisey ridge, russia)
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/51ee607eb1f24998bd721179db66ac6b
work_keys_str_mv	AT vasiliysukhorukov metamorphicconditionsandramanspectroscopiccarbonaceousmaterialthermometryofhostschistsofolympiadaandeldoradogolddepositsyeniseyridgerussia AT valeriyavolkova metamorphicconditionsandramanspectroscopiccarbonaceousmaterialthermometryofhostschistsofolympiadaandeldoradogolddepositsyeniseyridgerussia AT peternevolko metamorphicconditionsandramanspectroscopiccarbonaceousmaterialthermometryofhostschistsofolympiadaandeldoradogolddepositsyeniseyridgerussia AT pavelkozlov metamorphicconditionsandramanspectroscopiccarbonaceousmaterialthermometryofhostschistsofolympiadaandeldoradogolddepositsyeniseyridgerussia
_version_	1718412041501278208

Metamorphic Conditions and Raman Spectroscopic Carbonaceous Material Thermometry of Host Schists of Olympiada and Eldorado Gold Deposits (Yenisey Ridge, Russia)

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