Unique PGE–Cu–Ni Noril’sk Deposits, Siberian Trap Province: Magmatic and Tectonic Factors in Their Origin
The unique and very large PGE⁻Cu⁻Ni Noril’sk deposits are located within the Siberian trap province, posing a number of questions about the relationship between the ore-forming process and the magmatism that produced the traps. A successful answer to these questions could greatly increase the possib...
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ftdoajarticles:oai:doaj.org/article:bb4094028518408787dadcf0dafbb842 2023-05-15T15:03:53+02:00 Unique PGE–Cu–Ni Noril’sk Deposits, Siberian Trap Province: Magmatic and Tectonic Factors in Their Origin Nadezhda A. Krivolutskaya Anton V. Latyshev Alexander S. Dolgal Bronislav I. Gongalsky Elena M. Makarieva Alexander A. Makariev Natalia M. Svirskaya Yana V. Bychkova Anton I. Yakushev Alexey M. Asavin 2019-01-01T00:00:00Z https://doi.org/10.3390/min9010066 https://doaj.org/article/bb4094028518408787dadcf0dafbb842 EN eng MDPI AG https://www.mdpi.com/2075-163X/9/1/66 https://doaj.org/toc/2075-163X 2075-163X doi:10.3390/min9010066 https://doaj.org/article/bb4094028518408787dadcf0dafbb842 Minerals, Vol 9, Iss 1, p 66 (2019) Siberian traps magmatism geochemistry PGE–Cu–Ni deposits paleo-rift Mineralogy QE351-399.2 article 2019 ftdoajarticles https://doi.org/10.3390/min9010066 2022-12-31T15:48:27Z The unique and very large PGE⁻Cu⁻Ni Noril’sk deposits are located within the Siberian trap province, posing a number of questions about the relationship between the ore-forming process and the magmatism that produced the traps. A successful answer to these questions could greatly increase the possibility of discovering new deposits in flood basalt provinces elsewhere. In this contribution, we present new data on volcanic stratigraphy and geochemistry of the magmatic rocks in the key regions of the Siberian trap province (Noril’sk, Taimyr, Maymecha-Kotuy, Kulyumber, Lower Tunguska and Angara) and analyze the structure of the north part of the province. The magmatic rocks of the Arctic zone are characterized by variable MgO (3.6⁻37.2 wt %) and TiO 2 (0.8⁻3.9 wt %) contents, Gd/Yb (1.4⁻6.3) and La/Sm (2.0⁻10.4) ratios, and a large range of isotopic compositions. The intrusions in the center of the Tunguska syneclise and Angara syncline have much less variable compositions and correspond to a “typical trap„ with MgO of 5.6⁻7.2 wt %, TiO 2 of 1.0⁻1.6 wt %, Gd/Yb ratio of 1.4⁻1.6 and La/Sm ratio of 2.0⁻3.5. This compositional diversity of magmas in the Arctic zone is consistent with their emplacement within the paleo-rift zones. Ore-bearing intrusions (the Noril’sk 1, Talnakh, Kharaelakh) are deep-situated in the Igarka-Noril’sk rift zone, which has three branches, namely the Bolsheavamsky, Dyupkunsky, and Lower Tunguska, that are prospected for discovering new deposits. One possible explanation for the specific position of the PGE⁻Cu⁻Ni deposits is accumulation of sulfides in these long-lived zones from the Neoproterozoic to the Mesozoic era during magmatic and metamorphic processes. Thus, trap magmatism, itself, does not produce large deposits, but mobilizes earlier formed sulfide segregations in addition carrying metals in the original magmas. These deposits are the results of several successive magmatic events, in which emplacement of the traps was the final event. Article in Journal/Newspaper Arctic Taimyr Directory of Open Access Journals: DOAJ Articles Arctic Tunguska ENVELOPE(144.784,144.784,59.388,59.388) Talnakh ENVELOPE(88.205,88.205,69.470,69.470) Igarka ENVELOPE(86.603,86.603,67.466,67.466) Kotuy ENVELOPE(102.083,102.083,71.917,71.917) Maymecha ENVELOPE(99.467,99.467,71.300,71.300) Minerals 9 1 66 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Siberian traps magmatism geochemistry PGE–Cu–Ni deposits paleo-rift Mineralogy QE351-399.2 |
spellingShingle |
Siberian traps magmatism geochemistry PGE–Cu–Ni deposits paleo-rift Mineralogy QE351-399.2 Nadezhda A. Krivolutskaya Anton V. Latyshev Alexander S. Dolgal Bronislav I. Gongalsky Elena M. Makarieva Alexander A. Makariev Natalia M. Svirskaya Yana V. Bychkova Anton I. Yakushev Alexey M. Asavin Unique PGE–Cu–Ni Noril’sk Deposits, Siberian Trap Province: Magmatic and Tectonic Factors in Their Origin |
topic_facet |
Siberian traps magmatism geochemistry PGE–Cu–Ni deposits paleo-rift Mineralogy QE351-399.2 |
description |
The unique and very large PGE⁻Cu⁻Ni Noril’sk deposits are located within the Siberian trap province, posing a number of questions about the relationship between the ore-forming process and the magmatism that produced the traps. A successful answer to these questions could greatly increase the possibility of discovering new deposits in flood basalt provinces elsewhere. In this contribution, we present new data on volcanic stratigraphy and geochemistry of the magmatic rocks in the key regions of the Siberian trap province (Noril’sk, Taimyr, Maymecha-Kotuy, Kulyumber, Lower Tunguska and Angara) and analyze the structure of the north part of the province. The magmatic rocks of the Arctic zone are characterized by variable MgO (3.6⁻37.2 wt %) and TiO 2 (0.8⁻3.9 wt %) contents, Gd/Yb (1.4⁻6.3) and La/Sm (2.0⁻10.4) ratios, and a large range of isotopic compositions. The intrusions in the center of the Tunguska syneclise and Angara syncline have much less variable compositions and correspond to a “typical trap„ with MgO of 5.6⁻7.2 wt %, TiO 2 of 1.0⁻1.6 wt %, Gd/Yb ratio of 1.4⁻1.6 and La/Sm ratio of 2.0⁻3.5. This compositional diversity of magmas in the Arctic zone is consistent with their emplacement within the paleo-rift zones. Ore-bearing intrusions (the Noril’sk 1, Talnakh, Kharaelakh) are deep-situated in the Igarka-Noril’sk rift zone, which has three branches, namely the Bolsheavamsky, Dyupkunsky, and Lower Tunguska, that are prospected for discovering new deposits. One possible explanation for the specific position of the PGE⁻Cu⁻Ni deposits is accumulation of sulfides in these long-lived zones from the Neoproterozoic to the Mesozoic era during magmatic and metamorphic processes. Thus, trap magmatism, itself, does not produce large deposits, but mobilizes earlier formed sulfide segregations in addition carrying metals in the original magmas. These deposits are the results of several successive magmatic events, in which emplacement of the traps was the final event. |
format |
Article in Journal/Newspaper |
author |
Nadezhda A. Krivolutskaya Anton V. Latyshev Alexander S. Dolgal Bronislav I. Gongalsky Elena M. Makarieva Alexander A. Makariev Natalia M. Svirskaya Yana V. Bychkova Anton I. Yakushev Alexey M. Asavin |
author_facet |
Nadezhda A. Krivolutskaya Anton V. Latyshev Alexander S. Dolgal Bronislav I. Gongalsky Elena M. Makarieva Alexander A. Makariev Natalia M. Svirskaya Yana V. Bychkova Anton I. Yakushev Alexey M. Asavin |
author_sort |
Nadezhda A. Krivolutskaya |
title |
Unique PGE–Cu–Ni Noril’sk Deposits, Siberian Trap Province: Magmatic and Tectonic Factors in Their Origin |
title_short |
Unique PGE–Cu–Ni Noril’sk Deposits, Siberian Trap Province: Magmatic and Tectonic Factors in Their Origin |
title_full |
Unique PGE–Cu–Ni Noril’sk Deposits, Siberian Trap Province: Magmatic and Tectonic Factors in Their Origin |
title_fullStr |
Unique PGE–Cu–Ni Noril’sk Deposits, Siberian Trap Province: Magmatic and Tectonic Factors in Their Origin |
title_full_unstemmed |
Unique PGE–Cu–Ni Noril’sk Deposits, Siberian Trap Province: Magmatic and Tectonic Factors in Their Origin |
title_sort |
unique pge–cu–ni noril’sk deposits, siberian trap province: magmatic and tectonic factors in their origin |
publisher |
MDPI AG |
publishDate |
2019 |
url |
https://doi.org/10.3390/min9010066 https://doaj.org/article/bb4094028518408787dadcf0dafbb842 |
long_lat |
ENVELOPE(144.784,144.784,59.388,59.388) ENVELOPE(88.205,88.205,69.470,69.470) ENVELOPE(86.603,86.603,67.466,67.466) ENVELOPE(102.083,102.083,71.917,71.917) ENVELOPE(99.467,99.467,71.300,71.300) |
geographic |
Arctic Tunguska Talnakh Igarka Kotuy Maymecha |
geographic_facet |
Arctic Tunguska Talnakh Igarka Kotuy Maymecha |
genre |
Arctic Taimyr |
genre_facet |
Arctic Taimyr |
op_source |
Minerals, Vol 9, Iss 1, p 66 (2019) |
op_relation |
https://www.mdpi.com/2075-163X/9/1/66 https://doaj.org/toc/2075-163X 2075-163X doi:10.3390/min9010066 https://doaj.org/article/bb4094028518408787dadcf0dafbb842 |
op_doi |
https://doi.org/10.3390/min9010066 |
container_title |
Minerals |
container_volume |
9 |
container_issue |
1 |
container_start_page |
66 |
_version_ |
1766335724791005184 |