Late Paleozoic–Early Mesozoic Granite Magmatism on the Arctic Margin of the Siberian Craton during the Kara-Siberia Oblique Collision and Plume Events
We present new structural, petrographic, geochemical and geochronological data for the late Paleozoic–early Mesozoic granites and associated igneous rocks of the Taimyr Peninsula. It is demonstrated that large volumes of granites were formed due to the oblique collision of the Kara microcontinent an...
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2020
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ftmdpi:oai:mdpi.com:/2075-163X/10/6/571/ 2023-08-20T04:04:37+02:00 Late Paleozoic–Early Mesozoic Granite Magmatism on the Arctic Margin of the Siberian Craton during the Kara-Siberia Oblique Collision and Plume Events Valery Vernikovsky Antonina Vernikovskaya Vasilij Proskurnin Nikolay Matushkin Maria Proskurnina Pavel Kadilnikov Alexander Larionov Alexey Travin agris 2020-06-25 application/pdf https://doi.org/10.3390/min10060571 EN eng Multidisciplinary Digital Publishing Institute Mineral Geochemistry and Geochronology https://dx.doi.org/10.3390/min10060571 https://creativecommons.org/licenses/by/4.0/ Minerals; Volume 10; Issue 6; Pages: 571 granites petrography geochemistry U-Th-Pb and 40 Ar/ 39 Ar geochronology carboniferous Permian Triassic Siberian Craton Kara microcontinent oblique collision Kara orogen Siberian plume Text 2020 ftmdpi https://doi.org/10.3390/min10060571 2023-07-31T23:41:23Z We present new structural, petrographic, geochemical and geochronological data for the late Paleozoic–early Mesozoic granites and associated igneous rocks of the Taimyr Peninsula. It is demonstrated that large volumes of granites were formed due to the oblique collision of the Kara microcontinent and the Siberian paleocontinent. Based on U-Th-Pb isotope data for zircons, we identify syncollisional (315–282 Ma) and postcollisional (264–248 Ma) varieties, which differ not only in age but also in petrochemical and geochemical features. It is also shown that as the postcollisional magmatism was coming to an end, Siberian plume magmatism manifested in the Kara orogen and was represented by basalts and dolerites of the trap formation (251–249 Ma), but also by differentiated and individual intrusions of monzonites, quartz monzonites and syenites (Early–Middle Triassic) with a mixed crustal-mantle source. We present a geodynamic model for the formation of the Kara orogen and discuss the relationship between collisional and trap magmatism. Text Arctic Taimyr Siberia MDPI Open Access Publishing Arctic Minerals 10 6 571 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
granites petrography geochemistry U-Th-Pb and 40 Ar/ 39 Ar geochronology carboniferous Permian Triassic Siberian Craton Kara microcontinent oblique collision Kara orogen Siberian plume |
spellingShingle |
granites petrography geochemistry U-Th-Pb and 40 Ar/ 39 Ar geochronology carboniferous Permian Triassic Siberian Craton Kara microcontinent oblique collision Kara orogen Siberian plume Valery Vernikovsky Antonina Vernikovskaya Vasilij Proskurnin Nikolay Matushkin Maria Proskurnina Pavel Kadilnikov Alexander Larionov Alexey Travin Late Paleozoic–Early Mesozoic Granite Magmatism on the Arctic Margin of the Siberian Craton during the Kara-Siberia Oblique Collision and Plume Events |
topic_facet |
granites petrography geochemistry U-Th-Pb and 40 Ar/ 39 Ar geochronology carboniferous Permian Triassic Siberian Craton Kara microcontinent oblique collision Kara orogen Siberian plume |
description |
We present new structural, petrographic, geochemical and geochronological data for the late Paleozoic–early Mesozoic granites and associated igneous rocks of the Taimyr Peninsula. It is demonstrated that large volumes of granites were formed due to the oblique collision of the Kara microcontinent and the Siberian paleocontinent. Based on U-Th-Pb isotope data for zircons, we identify syncollisional (315–282 Ma) and postcollisional (264–248 Ma) varieties, which differ not only in age but also in petrochemical and geochemical features. It is also shown that as the postcollisional magmatism was coming to an end, Siberian plume magmatism manifested in the Kara orogen and was represented by basalts and dolerites of the trap formation (251–249 Ma), but also by differentiated and individual intrusions of monzonites, quartz monzonites and syenites (Early–Middle Triassic) with a mixed crustal-mantle source. We present a geodynamic model for the formation of the Kara orogen and discuss the relationship between collisional and trap magmatism. |
format |
Text |
author |
Valery Vernikovsky Antonina Vernikovskaya Vasilij Proskurnin Nikolay Matushkin Maria Proskurnina Pavel Kadilnikov Alexander Larionov Alexey Travin |
author_facet |
Valery Vernikovsky Antonina Vernikovskaya Vasilij Proskurnin Nikolay Matushkin Maria Proskurnina Pavel Kadilnikov Alexander Larionov Alexey Travin |
author_sort |
Valery Vernikovsky |
title |
Late Paleozoic–Early Mesozoic Granite Magmatism on the Arctic Margin of the Siberian Craton during the Kara-Siberia Oblique Collision and Plume Events |
title_short |
Late Paleozoic–Early Mesozoic Granite Magmatism on the Arctic Margin of the Siberian Craton during the Kara-Siberia Oblique Collision and Plume Events |
title_full |
Late Paleozoic–Early Mesozoic Granite Magmatism on the Arctic Margin of the Siberian Craton during the Kara-Siberia Oblique Collision and Plume Events |
title_fullStr |
Late Paleozoic–Early Mesozoic Granite Magmatism on the Arctic Margin of the Siberian Craton during the Kara-Siberia Oblique Collision and Plume Events |
title_full_unstemmed |
Late Paleozoic–Early Mesozoic Granite Magmatism on the Arctic Margin of the Siberian Craton during the Kara-Siberia Oblique Collision and Plume Events |
title_sort |
late paleozoic–early mesozoic granite magmatism on the arctic margin of the siberian craton during the kara-siberia oblique collision and plume events |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2020 |
url |
https://doi.org/10.3390/min10060571 |
op_coverage |
agris |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Taimyr Siberia |
genre_facet |
Arctic Taimyr Siberia |
op_source |
Minerals; Volume 10; Issue 6; Pages: 571 |
op_relation |
Mineral Geochemistry and Geochronology https://dx.doi.org/10.3390/min10060571 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/min10060571 |
container_title |
Minerals |
container_volume |
10 |
container_issue |
6 |
container_start_page |
571 |
_version_ |
1774715000118575104 |