The Permian-Triassic Riftogen Rocks in the Norilsk Area (NW Siberian Province): Geochemistry and Their Possible Link with PGE-Cu-Ni Mineralization
The volcanic rocks in the Vologochan syncline, the Khikey River valley, and Mount Sunduk, within the Norilsk area in the NW Siberian large igneous province, have been studied. They belong to the Ivakinsky, Syverminsky, Gudchikhinsky, Khakanchansky, Nadezhdinsky, Tuklonsky, and Morongovsky Formations...
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ftdoajarticles:oai:doaj.org/article:59708c2a86bb4b41a03f3178fc329502 2023-05-15T17:03:11+02:00 The Permian-Triassic Riftogen Rocks in the Norilsk Area (NW Siberian Province): Geochemistry and Their Possible Link with PGE-Cu-Ni Mineralization Nadezhda Krivolutskaya Valery Mikhailov Bronislav Gongalsky Dmitry Kuzmin Natalia Svirskaya 2022-09-01T00:00:00Z https://doi.org/10.3390/min12101203 https://doaj.org/article/59708c2a86bb4b41a03f3178fc329502 EN eng MDPI AG https://www.mdpi.com/2075-163X/12/10/1203 https://doaj.org/toc/2075-163X doi:10.3390/min12101203 2075-163X https://doaj.org/article/59708c2a86bb4b41a03f3178fc329502 Minerals, Vol 12, Iss 1203, p 1203 (2022) Siberian traps rift and platform magmatism Norilsk area PGE-Cu-Ni deposit geochemistry REE Mineralogy QE351-399.2 article 2022 ftdoajarticles https://doi.org/10.3390/min12101203 2022-12-30T20:54:45Z The volcanic rocks in the Vologochan syncline, the Khikey River valley, and Mount Sunduk, within the Norilsk area in the NW Siberian large igneous province, have been studied. They belong to the Ivakinsky, Syverminsky, Gudchikhinsky, Khakanchansky, Nadezhdinsky, Tuklonsky, and Morongovsky Formations. These Formations consist of trachybasalts, picritic basalts and tholeiitic basalts with aphyric and porphyritic textures, and intersertal and poikiloofitic structures. For the first time, we demonstrate the variations in the structure and composition of these Formations along the strike, based on 151 analyses of the major and trace elements in the rocks. The thickness of all the Formations, excepting the Morongovsky, reduce dramatically from the Yenisey–Khatanga trough to the Tunguska syneclise, and they pinch out in the east of the Norilsk area and are attributed to riftogen (rift) basalts. The rock compositions also change in this direction, especially in the Gudchikhinsky and Nadezhdinsky Formations. The two subformations of the Gudchikhinsky formation, the lower and upper, disappear in the east, so the Gudchikhinsky consists only of high-Mg rocks, picritic basalts, and picrites. The composition of the Nadezhdinsky formation varies intensely in its (Gd/Yb)n and (Th/Nb) ratios from the Vologochan syncline to the Khikey River valley. These structural and compositional variabilities differ between the rift formations and the platform ones. Two gabbro–dolerite sills from these areas that are close to the Norilsk and Ergalakh intrusive complexes have been studied. The metal contents in volcanic and intrusive rocks are similar and do not differ from the barren rocks of the South Pyasinsky massif comprising the PGE-Cu-Ni deposits. Only the Gudchikhinsky Formation contains elevated Cu and Ni concentrations. These features and the coinciding spatial distribution of the ore-bearing intrusions and picrites of the Gudchikhinsky rocks in the Norilsk–Igarka paleorift suggest their genetic link. It is proposed that the initial ... Article in Journal/Newspaper khatanga norilsk Directory of Open Access Journals: DOAJ Articles Norilsk ENVELOPE(88.203,88.203,69.354,69.354) Yenisey ENVELOPE(82.680,82.680,71.828,71.828) Tunguska ENVELOPE(144.784,144.784,59.388,59.388) Igarka ENVELOPE(86.603,86.603,67.466,67.466) Barren Rocks ENVELOPE(-130.553,-130.553,53.749,53.749) Sunduk ENVELOPE(42.517,42.517,65.600,65.600) Khikey ENVELOPE(89.968,89.968,69.841,69.841) Vologochan ENVELOPE(87.158,87.158,69.382,69.382) Minerals 12 10 1203 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Siberian traps rift and platform magmatism Norilsk area PGE-Cu-Ni deposit geochemistry REE Mineralogy QE351-399.2 |
spellingShingle |
Siberian traps rift and platform magmatism Norilsk area PGE-Cu-Ni deposit geochemistry REE Mineralogy QE351-399.2 Nadezhda Krivolutskaya Valery Mikhailov Bronislav Gongalsky Dmitry Kuzmin Natalia Svirskaya The Permian-Triassic Riftogen Rocks in the Norilsk Area (NW Siberian Province): Geochemistry and Their Possible Link with PGE-Cu-Ni Mineralization |
topic_facet |
Siberian traps rift and platform magmatism Norilsk area PGE-Cu-Ni deposit geochemistry REE Mineralogy QE351-399.2 |
description |
The volcanic rocks in the Vologochan syncline, the Khikey River valley, and Mount Sunduk, within the Norilsk area in the NW Siberian large igneous province, have been studied. They belong to the Ivakinsky, Syverminsky, Gudchikhinsky, Khakanchansky, Nadezhdinsky, Tuklonsky, and Morongovsky Formations. These Formations consist of trachybasalts, picritic basalts and tholeiitic basalts with aphyric and porphyritic textures, and intersertal and poikiloofitic structures. For the first time, we demonstrate the variations in the structure and composition of these Formations along the strike, based on 151 analyses of the major and trace elements in the rocks. The thickness of all the Formations, excepting the Morongovsky, reduce dramatically from the Yenisey–Khatanga trough to the Tunguska syneclise, and they pinch out in the east of the Norilsk area and are attributed to riftogen (rift) basalts. The rock compositions also change in this direction, especially in the Gudchikhinsky and Nadezhdinsky Formations. The two subformations of the Gudchikhinsky formation, the lower and upper, disappear in the east, so the Gudchikhinsky consists only of high-Mg rocks, picritic basalts, and picrites. The composition of the Nadezhdinsky formation varies intensely in its (Gd/Yb)n and (Th/Nb) ratios from the Vologochan syncline to the Khikey River valley. These structural and compositional variabilities differ between the rift formations and the platform ones. Two gabbro–dolerite sills from these areas that are close to the Norilsk and Ergalakh intrusive complexes have been studied. The metal contents in volcanic and intrusive rocks are similar and do not differ from the barren rocks of the South Pyasinsky massif comprising the PGE-Cu-Ni deposits. Only the Gudchikhinsky Formation contains elevated Cu and Ni concentrations. These features and the coinciding spatial distribution of the ore-bearing intrusions and picrites of the Gudchikhinsky rocks in the Norilsk–Igarka paleorift suggest their genetic link. It is proposed that the initial ... |
format |
Article in Journal/Newspaper |
author |
Nadezhda Krivolutskaya Valery Mikhailov Bronislav Gongalsky Dmitry Kuzmin Natalia Svirskaya |
author_facet |
Nadezhda Krivolutskaya Valery Mikhailov Bronislav Gongalsky Dmitry Kuzmin Natalia Svirskaya |
author_sort |
Nadezhda Krivolutskaya |
title |
The Permian-Triassic Riftogen Rocks in the Norilsk Area (NW Siberian Province): Geochemistry and Their Possible Link with PGE-Cu-Ni Mineralization |
title_short |
The Permian-Triassic Riftogen Rocks in the Norilsk Area (NW Siberian Province): Geochemistry and Their Possible Link with PGE-Cu-Ni Mineralization |
title_full |
The Permian-Triassic Riftogen Rocks in the Norilsk Area (NW Siberian Province): Geochemistry and Their Possible Link with PGE-Cu-Ni Mineralization |
title_fullStr |
The Permian-Triassic Riftogen Rocks in the Norilsk Area (NW Siberian Province): Geochemistry and Their Possible Link with PGE-Cu-Ni Mineralization |
title_full_unstemmed |
The Permian-Triassic Riftogen Rocks in the Norilsk Area (NW Siberian Province): Geochemistry and Their Possible Link with PGE-Cu-Ni Mineralization |
title_sort |
permian-triassic riftogen rocks in the norilsk area (nw siberian province): geochemistry and their possible link with pge-cu-ni mineralization |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/min12101203 https://doaj.org/article/59708c2a86bb4b41a03f3178fc329502 |
long_lat |
ENVELOPE(88.203,88.203,69.354,69.354) ENVELOPE(82.680,82.680,71.828,71.828) ENVELOPE(144.784,144.784,59.388,59.388) ENVELOPE(86.603,86.603,67.466,67.466) ENVELOPE(-130.553,-130.553,53.749,53.749) ENVELOPE(42.517,42.517,65.600,65.600) ENVELOPE(89.968,89.968,69.841,69.841) ENVELOPE(87.158,87.158,69.382,69.382) |
geographic |
Norilsk Yenisey Tunguska Igarka Barren Rocks Sunduk Khikey Vologochan |
geographic_facet |
Norilsk Yenisey Tunguska Igarka Barren Rocks Sunduk Khikey Vologochan |
genre |
khatanga norilsk |
genre_facet |
khatanga norilsk |
op_source |
Minerals, Vol 12, Iss 1203, p 1203 (2022) |
op_relation |
https://www.mdpi.com/2075-163X/12/10/1203 https://doaj.org/toc/2075-163X doi:10.3390/min12101203 2075-163X https://doaj.org/article/59708c2a86bb4b41a03f3178fc329502 |
op_doi |
https://doi.org/10.3390/min12101203 |
container_title |
Minerals |
container_volume |
12 |
container_issue |
10 |
container_start_page |
1203 |
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1766056992185516032 |