T-t Evolution of the Early Proterozoic Rocks in the Northern Ladoga Region from the Data on U-Pb, Rb-Sr and Sm-Nd Systems in Minerals

This paper presents the results of a study of isotopic systems in minerals and rocks in southern margin of the epi-Archean Karelian craton in the zone of its junction with the Svecofennian mobile belt. U-Pb, Sm-Nd and Rb-Sr mineral ages of metamorphic rocks allowed reconstructing a T-t trend during...

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Main Authors: Sh. K. Baltybaev, V. M. Savatenkov, M. E. Petrakova, Ш. К. Балтыбаев, В. М. Саватенков, М. Е. Петракова
Other Authors: This work was supported by the Russian Science Foundation grant 23-27-00106, Исследование выполнено за счет гранта Российского научного фонда (проект № 23-27-00106)
Format: Article in Journal/Newspaper
Language:Russian
Published: Institute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch 2024
Subjects:
история остывания
metamorphic rocks
monazite
amphibole
biotite
titanite
U-Pb
Sm-Nd
Rb-Sr
Northern Ladoga region
cooling history
метаморфические породы
монацит
амфибол
биотит
титанит
Северное Приладожье
Arctic
karelian
Online Access:https://www.gt-crust.ru/jour/article/view/1848
https://doi.org/10.5800/GT-2024-15-3-0759
id ftjgat:oai:oai.gtcrust.elpub.ru:article/1848
record_format openpolar
institution Open Polar
collection Geodynamics & Tectonophysics
op_collection_id ftjgat
language Russian
topic история остывания
metamorphic rocks
monazite
amphibole
biotite
titanite
U-Pb
Sm-Nd
Rb-Sr
Northern Ladoga region
cooling history
метаморфические породы
монацит
амфибол
биотит
титанит
Северное Приладожье
spellingShingle история остывания
metamorphic rocks
monazite
amphibole
biotite
titanite
U-Pb
Sm-Nd
Rb-Sr
Northern Ladoga region
cooling history
метаморфические породы
монацит
амфибол
биотит
титанит
Северное Приладожье
Sh. K. Baltybaev
V. M. Savatenkov
M. E. Petrakova
Ш. К. Балтыбаев
В. М. Саватенков
М. Е. Петракова
T-t Evolution of the Early Proterozoic Rocks in the Northern Ladoga Region from the Data on U-Pb, Rb-Sr and Sm-Nd Systems in Minerals
topic_facet история остывания
metamorphic rocks
monazite
amphibole
biotite
titanite
U-Pb
Sm-Nd
Rb-Sr
Northern Ladoga region
cooling history
метаморфические породы
монацит
амфибол
биотит
титанит
Северное Приладожье
description This paper presents the results of a study of isotopic systems in minerals and rocks in southern margin of the epi-Archean Karelian craton in the zone of its junction with the Svecofennian mobile belt. U-Pb, Sm-Nd and Rb-Sr mineral ages of metamorphic rocks allowed reconstructing a T-t trend during ~1.88–1.61 Ga, which reflects a wide-ranging cooling history of metamorphic rocks from the peak values of about 650–700 °C at 1.88–1.79 Ga (U-Pb age of monazites and apparent oldest Sm-Nd age of amphiboles) to 300–400 °C at 1.61 Ga (model Rb-Sr age of biotites) in zones of low- and medium-temperature metamorphism. The specificity of removal of deep-seated rocks to the present-day erosion surface and the reconstructed T-t trend comply with the development of thrust-nappe structures during the exhumation of the Svecofennids. It is also assumed that differential vertical block movements played a significant role during the post-orogenic extensional collapse and neorifting. Приводятся результаты изучения изотопных систем в минералах и породах южной окраины эпиархейского Карельского кратона в зоне сочленения с породами Свекофеннского подвижного пояса. Оценки возраста минералов метаморфических пород с использованием U-Pb, Sm-Nd и Rb-Sr изотопных систем позволили построить T-t тренд от ~1.88 до 1.61 млрд лет назад, который отражает историю остывания широкого спектра метаморфических пород от пиковых значений около 650–700 °С 1.88–1.79 млрд лет назад (U-Pb возраст монацитов и наиболее древний кажущийся Sm-Nd возраст амфиболов) до 300–400 °C 1.61 млрд лет назад (модельный Rb-Sr возраст биотитов) в зонах низко- и среднетемпературного метаморфизма. Cпецифика выведения глубинных пород к современной эрозионной поверхности и полученный T-t тренд увязываются с развитием покровно-надвиговых структур при эксгумации свекофеннид. Предполагается также существенная роль дифференциальных вертикально-блоковых перемещений во время посторогенного коллапса растяжения и позднейшего рифтогенеза.
author2 This work was supported by the Russian Science Foundation grant 23-27-00106
Исследование выполнено за счет гранта Российского научного фонда (проект № 23-27-00106)
format Article in Journal/Newspaper
author Sh. K. Baltybaev
V. M. Savatenkov
M. E. Petrakova
Ш. К. Балтыбаев
В. М. Саватенков
М. Е. Петракова
author_facet Sh. K. Baltybaev
V. M. Savatenkov
M. E. Petrakova
Ш. К. Балтыбаев
В. М. Саватенков
М. Е. Петракова
author_sort Sh. K. Baltybaev
title T-t Evolution of the Early Proterozoic Rocks in the Northern Ladoga Region from the Data on U-Pb, Rb-Sr and Sm-Nd Systems in Minerals
title_short T-t Evolution of the Early Proterozoic Rocks in the Northern Ladoga Region from the Data on U-Pb, Rb-Sr and Sm-Nd Systems in Minerals
title_full T-t Evolution of the Early Proterozoic Rocks in the Northern Ladoga Region from the Data on U-Pb, Rb-Sr and Sm-Nd Systems in Minerals
title_fullStr T-t Evolution of the Early Proterozoic Rocks in the Northern Ladoga Region from the Data on U-Pb, Rb-Sr and Sm-Nd Systems in Minerals
title_full_unstemmed T-t Evolution of the Early Proterozoic Rocks in the Northern Ladoga Region from the Data on U-Pb, Rb-Sr and Sm-Nd Systems in Minerals
title_sort t-t evolution of the early proterozoic rocks in the northern ladoga region from the data on u-pb, rb-sr and sm-nd systems in minerals
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/1848
https://doi.org/10.5800/GT-2024-15-3-0759
genre Arctic
karelian
genre_facet Arctic
karelian
op_source Geodynamics & Tectonophysics; Том 15, № 3 (2024); 0759
Геодинамика и тектонофизика; Том 15, № 3 (2024); 0759
2078-502X
op_relation https://www.gt-crust.ru/jour/article/view/1848/820
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op_doi https://doi.org/10.5800/GT-2024-15-3-075910.1007/s00410005028510.13140/2.1.5088.592010.1134/S001685211306002210.1134/S1028334X0906012910.1134/S1028334X2360056110.1134/S001685212104003810.4095/12660310.5800/GT-2020-11-4-050510.1144/gsjgs.142.1.009710.1038/
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spelling ftjgat:oai:oai.gtcrust.elpub.ru:article/1848 2024-09-15T17:52:06+00:00 T-t Evolution of the Early Proterozoic Rocks in the Northern Ladoga Region from the Data on U-Pb, Rb-Sr and Sm-Nd Systems in Minerals T-t ЭВОЛЮЦИЯ РАННЕПРОТЕРОЗОЙСКИХ ПОРОД СЕВЕРНОГО ПРИЛАДОЖЬЯ ПО ДАННЫМ ИЗУЧЕНИЯ U-Pb, Rb-Sr И Sm-Nd СИСТЕМ В МИНЕРАЛАХ Sh. K. Baltybaev V. M. Savatenkov M. E. Petrakova Ш. К. Балтыбаев В. М. Саватенков М. Е. Петракова This work was supported by the Russian Science Foundation grant 23-27-00106 Исследование выполнено за счет гранта Российского научного фонда (проект № 23-27-00106) 2024-06-18 application/pdf https://www.gt-crust.ru/jour/article/view/1848 https://doi.org/10.5800/GT-2024-15-3-0759 rus rus Institute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch https://www.gt-crust.ru/jour/article/view/1848/820 Amelin Yu.V., Larin A.M., Tucker R.D., 1997. Chronology of Multiphase Emplacement of the Salmi Rapakivi Granite-Anorthosite Complex, Baltic Shield: Implications for Magmatic Evolution. Contribution to Mineralogy and Petrology 127, 353–368. https://doi.org/10.1007/s004100050285. Andersson U.B., 1997. The Late Svecofennian, High-Grade Contact and Regional Metamorphism in Southwestern Bergslagen (Central Southern Sweden). Geological Survey of Sweden Final Report 970519, 36 p. https://doi.org/10.13140/2.1.5088.5920. Baltybaev Sh.K., 2013. Svecofennian Orogen of the Fennoscandian Shield: Compositional and Isotopic Zoning and Its Tectonic Interpretation. Geotectonics 47, 452–464. https://doi.org/10.1134/S0016852113060022. Балтыбаев Ш.К., Глебовицкий В.А., Козырева И.В., Конопелько Д.Л., Левченков О.А., Седова И.С., Шульдинер В.И. Геология и петрология свекофеннид Приладожья. СПб.: Изд-во СПбГУ, 2000. 200 с. Baltybaev Sh.K., Glebovitskii V.A., Kozyreva I.V., Shul’diner V.I., 1996. 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Geodynamics & Tectonophysics; Том 15, № 3 (2024); 0759 Геодинамика и тектонофизика; Том 15, № 3 (2024); 0759 2078-502X история остывания metamorphic rocks monazite amphibole biotite titanite U-Pb Sm-Nd Rb-Sr Northern Ladoga region cooling history метаморфические породы монацит амфибол биотит титанит Северное Приладожье info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2024 ftjgat https://doi.org/10.5800/GT-2024-15-3-075910.1007/s00410005028510.13140/2.1.5088.592010.1134/S001685211306002210.1134/S1028334X0906012910.1134/S1028334X2360056110.1134/S001685212104003810.4095/12660310.5800/GT-2020-11-4-050510.1144/gsjgs.142.1.009710.1038/ 2024-06-24T23:46:30Z This paper presents the results of a study of isotopic systems in minerals and rocks in southern margin of the epi-Archean Karelian craton in the zone of its junction with the Svecofennian mobile belt. U-Pb, Sm-Nd and Rb-Sr mineral ages of metamorphic rocks allowed reconstructing a T-t trend during ~1.88–1.61 Ga, which reflects a wide-ranging cooling history of metamorphic rocks from the peak values of about 650–700 °C at 1.88–1.79 Ga (U-Pb age of monazites and apparent oldest Sm-Nd age of amphiboles) to 300–400 °C at 1.61 Ga (model Rb-Sr age of biotites) in zones of low- and medium-temperature metamorphism. The specificity of removal of deep-seated rocks to the present-day erosion surface and the reconstructed T-t trend comply with the development of thrust-nappe structures during the exhumation of the Svecofennids. It is also assumed that differential vertical block movements played a significant role during the post-orogenic extensional collapse and neorifting. Приводятся результаты изучения изотопных систем в минералах и породах южной окраины эпиархейского Карельского кратона в зоне сочленения с породами Свекофеннского подвижного пояса. Оценки возраста минералов метаморфических пород с использованием U-Pb, Sm-Nd и Rb-Sr изотопных систем позволили построить T-t тренд от ~1.88 до 1.61 млрд лет назад, который отражает историю остывания широкого спектра метаморфических пород от пиковых значений около 650–700 °С 1.88–1.79 млрд лет назад (U-Pb возраст монацитов и наиболее древний кажущийся Sm-Nd возраст амфиболов) до 300–400 °C 1.61 млрд лет назад (модельный Rb-Sr возраст биотитов) в зонах низко- и среднетемпературного метаморфизма. Cпецифика выведения глубинных пород к современной эрозионной поверхности и полученный T-t тренд увязываются с развитием покровно-надвиговых структур при эксгумации свекофеннид. Предполагается также существенная роль дифференциальных вертикально-блоковых перемещений во время посторогенного коллапса растяжения и позднейшего рифтогенеза. Article in Journal/Newspaper Arctic karelian Geodynamics & Tectonophysics

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