Geochemical Distribution of Platinum Metals, Gold and Silver in Intrusive Rocks of the Norilsk Region
The Norilsk ore district is one of the world leaders in the production of platinum metals. Long-term research focused on the detection of sulfide platinum-copper-nickel ores contributed to the accumulation of a large volume of scientific material on the geology and mineralization of the Norilsk area...
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Language: | English |
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MDPI AG
2023
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Online Access: | https://doi.org/10.3390/min13060719 https://doaj.org/article/1b1b9e4a1d8949c1a595351c88cdde7c |
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ftdoajarticles:oai:doaj.org/article:1b1b9e4a1d8949c1a595351c88cdde7c 2023-07-23T04:20:26+02:00 Geochemical Distribution of Platinum Metals, Gold and Silver in Intrusive Rocks of the Norilsk Region Ludmila Canhimbue Irina Talovina 2023-05-01T00:00:00Z https://doi.org/10.3390/min13060719 https://doaj.org/article/1b1b9e4a1d8949c1a595351c88cdde7c EN eng MDPI AG https://www.mdpi.com/2075-163X/13/6/719 https://doaj.org/toc/2075-163X doi:10.3390/min13060719 2075-163X https://doaj.org/article/1b1b9e4a1d8949c1a595351c88cdde7c Minerals, Vol 13, Iss 719, p 719 (2023) Norilsk region PGE-Au-Ag mineralization noble metals ore-bearing intrusions Mineralogy QE351-399.2 article 2023 ftdoajarticles https://doi.org/10.3390/min13060719 2023-07-02T00:37:34Z The Norilsk ore district is one of the world leaders in the production of platinum metals. Long-term research focused on the detection of sulfide platinum-copper-nickel ores contributed to the accumulation of a large volume of scientific material on the geology and mineralization of the Norilsk area. Despite this, the issue of the composition of the initial melt for ore-bearing intrusive complexes and its degree of enrichment with noble metals remains open. Intrusive rocks of the Norilsk region are rarely analyzed for their ratio of noble metals. However, the analysis and comparison of geochemical parameters of different types of intrusions allows us to draw important conclusions not only about the composition of the initial magmas of ore-bearing complexes, but also about the formation conditions of the intrusions. This study demonstrates the distribution of platinum metals, gold and silver in the main petrographic differentiates of the Kharaelakh, Talnakh, Vologochan intrusions and Kruglogorsk-type intrusion. The regularities and variations of the distribution of metals depend on the host rocks. There are two series of rocks in the inner structure of the ore-bearing intrusions: 1. Picritic and taxitic gabbro-dolerites enriched in PGE-Au-Ag mineralization which forms disseminated ores at intrusion bottoms (ore-bearing rocks). 2. Olivine-, olivine-bearing, olivine-free gabbro-dolerites and leucogabbro with poor sulfide mineralization at the upper part of the intrusions (ore-free rocks). There is a distinct correlation between PGE, Cu, S and to a lesser extent correlation with Ni in the first rock group, which is a characteristic of sulfide PGE-Cu-Ni deposits. In the second group, correlations are also revealed, but the correlation coefficients are lower. The main element controlling the distribution of platinum metals is copper. The taxitic gabbro-dolerites of the Talnakh intrusion are the most enriched by noble metals. According to noble metal patterns the rocks of the Kharaelakh intrusion show the highest ... Article in Journal/Newspaper norilsk Directory of Open Access Journals: DOAJ Articles First Rock ENVELOPE(-36.114,-36.114,-54.922,-54.922) Norilsk ENVELOPE(88.203,88.203,69.354,69.354) Talnakh ENVELOPE(88.205,88.205,69.470,69.470) Vologochan ENVELOPE(87.158,87.158,69.382,69.382) Minerals 13 6 719 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Norilsk region PGE-Au-Ag mineralization noble metals ore-bearing intrusions Mineralogy QE351-399.2 |
spellingShingle |
Norilsk region PGE-Au-Ag mineralization noble metals ore-bearing intrusions Mineralogy QE351-399.2 Ludmila Canhimbue Irina Talovina Geochemical Distribution of Platinum Metals, Gold and Silver in Intrusive Rocks of the Norilsk Region |
topic_facet |
Norilsk region PGE-Au-Ag mineralization noble metals ore-bearing intrusions Mineralogy QE351-399.2 |
description |
The Norilsk ore district is one of the world leaders in the production of platinum metals. Long-term research focused on the detection of sulfide platinum-copper-nickel ores contributed to the accumulation of a large volume of scientific material on the geology and mineralization of the Norilsk area. Despite this, the issue of the composition of the initial melt for ore-bearing intrusive complexes and its degree of enrichment with noble metals remains open. Intrusive rocks of the Norilsk region are rarely analyzed for their ratio of noble metals. However, the analysis and comparison of geochemical parameters of different types of intrusions allows us to draw important conclusions not only about the composition of the initial magmas of ore-bearing complexes, but also about the formation conditions of the intrusions. This study demonstrates the distribution of platinum metals, gold and silver in the main petrographic differentiates of the Kharaelakh, Talnakh, Vologochan intrusions and Kruglogorsk-type intrusion. The regularities and variations of the distribution of metals depend on the host rocks. There are two series of rocks in the inner structure of the ore-bearing intrusions: 1. Picritic and taxitic gabbro-dolerites enriched in PGE-Au-Ag mineralization which forms disseminated ores at intrusion bottoms (ore-bearing rocks). 2. Olivine-, olivine-bearing, olivine-free gabbro-dolerites and leucogabbro with poor sulfide mineralization at the upper part of the intrusions (ore-free rocks). There is a distinct correlation between PGE, Cu, S and to a lesser extent correlation with Ni in the first rock group, which is a characteristic of sulfide PGE-Cu-Ni deposits. In the second group, correlations are also revealed, but the correlation coefficients are lower. The main element controlling the distribution of platinum metals is copper. The taxitic gabbro-dolerites of the Talnakh intrusion are the most enriched by noble metals. According to noble metal patterns the rocks of the Kharaelakh intrusion show the highest ... |
format |
Article in Journal/Newspaper |
author |
Ludmila Canhimbue Irina Talovina |
author_facet |
Ludmila Canhimbue Irina Talovina |
author_sort |
Ludmila Canhimbue |
title |
Geochemical Distribution of Platinum Metals, Gold and Silver in Intrusive Rocks of the Norilsk Region |
title_short |
Geochemical Distribution of Platinum Metals, Gold and Silver in Intrusive Rocks of the Norilsk Region |
title_full |
Geochemical Distribution of Platinum Metals, Gold and Silver in Intrusive Rocks of the Norilsk Region |
title_fullStr |
Geochemical Distribution of Platinum Metals, Gold and Silver in Intrusive Rocks of the Norilsk Region |
title_full_unstemmed |
Geochemical Distribution of Platinum Metals, Gold and Silver in Intrusive Rocks of the Norilsk Region |
title_sort |
geochemical distribution of platinum metals, gold and silver in intrusive rocks of the norilsk region |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/min13060719 https://doaj.org/article/1b1b9e4a1d8949c1a595351c88cdde7c |
long_lat |
ENVELOPE(-36.114,-36.114,-54.922,-54.922) ENVELOPE(88.203,88.203,69.354,69.354) ENVELOPE(88.205,88.205,69.470,69.470) ENVELOPE(87.158,87.158,69.382,69.382) |
geographic |
First Rock Norilsk Talnakh Vologochan |
geographic_facet |
First Rock Norilsk Talnakh Vologochan |
genre |
norilsk |
genre_facet |
norilsk |
op_source |
Minerals, Vol 13, Iss 719, p 719 (2023) |
op_relation |
https://www.mdpi.com/2075-163X/13/6/719 https://doaj.org/toc/2075-163X doi:10.3390/min13060719 2075-163X https://doaj.org/article/1b1b9e4a1d8949c1a595351c88cdde7c |
op_doi |
https://doi.org/10.3390/min13060719 |
container_title |
Minerals |
container_volume |
13 |
container_issue |
6 |
container_start_page |
719 |
_version_ |
1772184731586134016 |