TWO PULSES OF MAGMATIC ACTIVITY DURING THE EARLY RIPHEAN KUONAMKA IGNEOUS PROVINCE FORMATION: PALEOMAGNETIC SUBSTANTIATION OF THE HYPOTHESIS

By the beginning of the 20th century, at least ten different generations of intrusive mafic bodies 1800–900 Ma were distinguished on the territory of the Anabar massif. The first modern age estimates, however, indicate the formation of the bulk of these bodies in a relatively short period of time ~1...

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Main Authors: A. M. Pasenko, I. V. Fedyukin, V. E. Pavlov, А. М. Пасенко, И. В. Федюкин, В. Э. Павлов
Other Authors: The work was carried out within the framework of the RSF project № 22-77-00052., Работа выполнена в рамках реализации проекта РНФ №22-77-00052.
Format: Article in Journal/Newspaper
Language:Russian
Published: Institute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch 2024
Subjects:
котуйский интрузивный комплекс
Kotuy
Anabar massif
paleomagnetism
Siberian platform
Mesoproterozoic
Kotuy magmatic complex
Котуй
Анабарское поднятие
палеомагнетизм
Сибирская платформа
мезопротерозой
Arctic
Online Access:https://www.gt-crust.ru/jour/article/view/1818
https://doi.org/10.5800/GT-2024-15-2-0748
id ftjgat:oai:oai.gtcrust.elpub.ru:article/1818
record_format openpolar
institution Open Polar
collection Geodynamics & Tectonophysics
op_collection_id ftjgat
language Russian
topic котуйский интрузивный комплекс
Kotuy
Anabar massif
paleomagnetism
Siberian platform
Mesoproterozoic
Kotuy magmatic complex
Котуй
Анабарское поднятие
палеомагнетизм
Сибирская платформа
мезопротерозой
spellingShingle котуйский интрузивный комплекс
Kotuy
Anabar massif
paleomagnetism
Siberian platform
Mesoproterozoic
Kotuy magmatic complex
Котуй
Анабарское поднятие
палеомагнетизм
Сибирская платформа
мезопротерозой
A. M. Pasenko
I. V. Fedyukin
V. E. Pavlov
А. М. Пасенко
И. В. Федюкин
В. Э. Павлов
TWO PULSES OF MAGMATIC ACTIVITY DURING THE EARLY RIPHEAN KUONAMKA IGNEOUS PROVINCE FORMATION: PALEOMAGNETIC SUBSTANTIATION OF THE HYPOTHESIS
topic_facet котуйский интрузивный комплекс
Kotuy
Anabar massif
paleomagnetism
Siberian platform
Mesoproterozoic
Kotuy magmatic complex
Котуй
Анабарское поднятие
палеомагнетизм
Сибирская платформа
мезопротерозой
description By the beginning of the 20th century, at least ten different generations of intrusive mafic bodies 1800–900 Ma were distinguished on the territory of the Anabar massif. The first modern age estimates, however, indicate the formation of the bulk of these bodies in a relatively short period of time ~1480–1500 Ma. Based on geochronological and paleomagnetic data, intrusive bodies with this age were combined into the Kuonamka large igneous province (LIP). However, a complex of paleomagnetic studies indicated the probable existence of at least two pulses of magmatic activity during the formation of this province, differing in age, possibly by ~20 Ma. We performed a paleomagnetic study of subvolcanic bodies of the main composition of Permo-Triassic (dykes) and Mesoproterozoic (sills) age, emerging to the surface in the valley of the middle reaches of the Kotui River. As expected, the studied dikes contain an ancient magnetization, the direction of which is typical for Permo-Triassic magmatic bodies of the region and the Siberian platform as a whole, and the paleomagnetic directions of the sills are close to those previously determined in the age-related subvolcanic bodies of the Kuonamka igneous province (1501±3 Ma) of the Anabar massif. The data obtained allow us to test the previously proposed hypothesis about the existence of two magmatic pulses ~1480 and 1500 Ma ago during the formation of the Kuonamka igneous province. The results of the analysis of already known and new paleomagnetic data obtained by us do not support this hypothesis. A refined paleomagnetic pole was proposed for the Siberian platform ~1500 Ma ago with coordinates 22.6° S, 65.0° E and A95=4.3°. К началу XX в. на территории Анабарского поднятия выделялось по крайней мере десять различных генераций интрузивных базитовых тел с возрастом от 1800 до 900 млн лет. Современные оценки возраста, однако, указывают на формирование основного количества этих тел в относительно небольшом промежутке времени ~1480–1500 млн лет назад. На основании ...
author2 The work was carried out within the framework of the RSF project № 22-77-00052.
Работа выполнена в рамках реализации проекта РНФ №22-77-00052.
format Article in Journal/Newspaper
author A. M. Pasenko
I. V. Fedyukin
V. E. Pavlov
А. М. Пасенко
И. В. Федюкин
В. Э. Павлов
author_facet A. M. Pasenko
I. V. Fedyukin
V. E. Pavlov
А. М. Пасенко
И. В. Федюкин
В. Э. Павлов
author_sort A. M. Pasenko
title TWO PULSES OF MAGMATIC ACTIVITY DURING THE EARLY RIPHEAN KUONAMKA IGNEOUS PROVINCE FORMATION: PALEOMAGNETIC SUBSTANTIATION OF THE HYPOTHESIS
title_short TWO PULSES OF MAGMATIC ACTIVITY DURING THE EARLY RIPHEAN KUONAMKA IGNEOUS PROVINCE FORMATION: PALEOMAGNETIC SUBSTANTIATION OF THE HYPOTHESIS
title_full TWO PULSES OF MAGMATIC ACTIVITY DURING THE EARLY RIPHEAN KUONAMKA IGNEOUS PROVINCE FORMATION: PALEOMAGNETIC SUBSTANTIATION OF THE HYPOTHESIS
title_fullStr TWO PULSES OF MAGMATIC ACTIVITY DURING THE EARLY RIPHEAN KUONAMKA IGNEOUS PROVINCE FORMATION: PALEOMAGNETIC SUBSTANTIATION OF THE HYPOTHESIS
title_full_unstemmed TWO PULSES OF MAGMATIC ACTIVITY DURING THE EARLY RIPHEAN KUONAMKA IGNEOUS PROVINCE FORMATION: PALEOMAGNETIC SUBSTANTIATION OF THE HYPOTHESIS
title_sort two pulses of magmatic activity during the early riphean kuonamka igneous province formation: paleomagnetic substantiation of the hypothesis
publisher Institute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch
publishDate 2024
url https://www.gt-crust.ru/jour/article/view/1818
https://doi.org/10.5800/GT-2024-15-2-0748
genre Arctic
genre_facet Arctic
op_source Geodynamics & Tectonophysics; Том 15, № 2 (2024); 0748
Геодинамика и тектонофизика; Том 15, № 2 (2024); 0748
2078-502X
op_relation https://www.gt-crust.ru/jour/article/view/1818/809
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https://www.gt-crust.ru/jour/article/view/1818
doi:10.5800/GT-2024-15-2-0748
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op_doi https://doi.org/10.5800/GT-2024-15-2-074810.1017/CBO978051161279410.1134/S106935132305002610.1086/31441310.1016/j.rgg.2016.01.01510.1016/j.precamres.2016.06.01710.1016/j.precamres.2022.10655710.1111/j.1365-246X.1990.tb05683.x10.1016/S0012-821X(02)00880-41
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spelling ftjgat:oai:oai.gtcrust.elpub.ru:article/1818 2024-05-19T07:33:35+00:00 TWO PULSES OF MAGMATIC ACTIVITY DURING THE EARLY RIPHEAN KUONAMKA IGNEOUS PROVINCE FORMATION: PALEOMAGNETIC SUBSTANTIATION OF THE HYPOTHESIS ДВА ПУЛЬСА МАГМАТИЧЕСКОЙ АКТИВНОСТИ ПРИ ФОРМИРОВАНИИ РАННЕРИФЕЙСКОЙ КУОНАМСКОЙ МАГМАТИЧЕСКОЙ ПРОВИНЦИИ: ПАЛЕОМАГНИТНОЕ ОБОСНОВАНИЕ ГИПОТЕЗЫ A. M. Pasenko I. V. Fedyukin V. E. Pavlov А. М. Пасенко И. В. Федюкин В. Э. Павлов The work was carried out within the framework of the RSF project № 22-77-00052. Работа выполнена в рамках реализации проекта РНФ №22-77-00052. 2024-04-19 application/pdf https://www.gt-crust.ru/jour/article/view/1818 https://doi.org/10.5800/GT-2024-15-2-0748 rus rus Institute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch https://www.gt-crust.ru/jour/article/view/1818/809 Butler R.F., 1998. Paleomagnetism: Magnetic Domains to Geological Terranes. Blackwell Scientific Publications, 319 p. Dunlop D.J., Özdemir Ö., 1997. Rock Magnetism. Fundamentals and Frontiers, Geological Magazine. Cambridge University Press, Cambridge, 596 p. https://doi.org/10.1017/CBO9780511612794. Efremov I.V., Veselovskiy R.V., 2023. PMTools: New Application for Paleomagnetic Data Analysis. Izvestiya, Physics of the Solid Earth 59, 798–805. https://doi.org/10.1134/S1069351323050026. Ernst R.E., Buchan K.L., Hamilton M.A., Okrugin A.V., Tomshin M.D., 2000. Integrated Paleomagnetism and U-Pb Geochronology of Mafic Dikes of the Eastern Anabar Shield Region, Siberia: Implications for Mesoproterozoic Paleolatitude of Siberia and Comparison with Laurentia. The Journal of Geology 108 (4), 381–401. https://doi.org/10.1086/314413. Ernst R.E., Okrugin A.V., Veselovskiy R.V., Kamo S.L., Hamilton M.A., Pavlov V., Söderlund U., Chamberlain K.R., Rogers C., 2016. The 1501 Ma Kuonamka Large Igneous Province of Northern Siberia: U-Pb Geochronology, Geochemistry, and Links with Coeval Magmatism on Other Crustal Blocks. 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Doklady Earth Sciences 502, 7–13. https://doi.org/10.1134/S1028334X22020131. https://www.gt-crust.ru/jour/article/view/1818 doi:10.5800/GT-2024-15-2-0748 Authors who publish with this Online Publication agree to the following terms:Authors retain copyright and grant the Online Publication right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Online Publication.Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the Online Publication's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this Online Publication.Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access). Авторы, публикующие статьи в данном сетевом издании, соглашаются на следующее:1. Авторы сохраняют за собой авторские права и предоставляют сетевому изданию право первой публикации работы, которая по истечении 6 месяцев после публикации автоматически лицензируется на условиях Creative Commons Attribution License , что позволяет другим распространять данную работу с обязательным сохранением ссылок на авторов оригинальной работы и оригинальную публикацию в этом издании.2. Авторы имеют право размещать свою работу в сети Интернет на ресурсах, не относящихся к другим издательствам (например, на персональном сайте), в форме и содержании, принятыми издателем для опубликования в сетевом издании, так как это может привести к продуктивному обсуждению и большему количеству ссылок на данную работу (См. The Effect of Open Access). Geodynamics & Tectonophysics; Том 15, № 2 (2024); 0748 Геодинамика и тектонофизика; Том 15, № 2 (2024); 0748 2078-502X котуйский интрузивный комплекс Kotuy Anabar massif paleomagnetism Siberian platform Mesoproterozoic Kotuy magmatic complex Котуй Анабарское поднятие палеомагнетизм Сибирская платформа мезопротерозой info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2024 ftjgat https://doi.org/10.5800/GT-2024-15-2-074810.1017/CBO978051161279410.1134/S106935132305002610.1086/31441310.1016/j.rgg.2016.01.01510.1016/j.precamres.2016.06.01710.1016/j.precamres.2022.10655710.1111/j.1365-246X.1990.tb05683.x10.1016/S0012-821X(02)00880-41 2024-04-25T00:27:51Z By the beginning of the 20th century, at least ten different generations of intrusive mafic bodies 1800–900 Ma were distinguished on the territory of the Anabar massif. The first modern age estimates, however, indicate the formation of the bulk of these bodies in a relatively short period of time ~1480–1500 Ma. Based on geochronological and paleomagnetic data, intrusive bodies with this age were combined into the Kuonamka large igneous province (LIP). However, a complex of paleomagnetic studies indicated the probable existence of at least two pulses of magmatic activity during the formation of this province, differing in age, possibly by ~20 Ma. We performed a paleomagnetic study of subvolcanic bodies of the main composition of Permo-Triassic (dykes) and Mesoproterozoic (sills) age, emerging to the surface in the valley of the middle reaches of the Kotui River. As expected, the studied dikes contain an ancient magnetization, the direction of which is typical for Permo-Triassic magmatic bodies of the region and the Siberian platform as a whole, and the paleomagnetic directions of the sills are close to those previously determined in the age-related subvolcanic bodies of the Kuonamka igneous province (1501±3 Ma) of the Anabar massif. The data obtained allow us to test the previously proposed hypothesis about the existence of two magmatic pulses ~1480 and 1500 Ma ago during the formation of the Kuonamka igneous province. The results of the analysis of already known and new paleomagnetic data obtained by us do not support this hypothesis. A refined paleomagnetic pole was proposed for the Siberian platform ~1500 Ma ago with coordinates 22.6° S, 65.0° E and A95=4.3°. К началу XX в. на территории Анабарского поднятия выделялось по крайней мере десять различных генераций интрузивных базитовых тел с возрастом от 1800 до 900 млн лет. Современные оценки возраста, однако, указывают на формирование основного количества этих тел в относительно небольшом промежутке времени ~1480–1500 млн лет назад. На основании ... Article in Journal/Newspaper Arctic Geodynamics & Tectonophysics

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