Thermochronology and Exhumation History of the Northeastern Fennoscandian Shield Since 1.9 Ga: Evidence From 40 Ar/ 39 Ar and Apatite Fission Track Data From the Kola Peninsula
Results from thermochronological studies have multiple applications to various problems in tectonics and landform evolution. However, up to now a lack of thermochronological data from the northeastern Fennoscandian Shield has complicated the interpretation of tectonothermal evolution of the region....
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Online Access: | http://hdl.handle.net/10150/634481 https://doi.org/10.1029/2018tc005250 |
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ftunivarizona:oai:repository.arizona.edu:10150/634481 2023-05-15T16:11:36+02:00 Thermochronology and Exhumation History of the Northeastern Fennoscandian Shield Since 1.9 Ga: Evidence From 40 Ar/ 39 Ar and Apatite Fission Track Data From the Kola Peninsula Veselovskiy, Roman V. Thomson, Stuart N. Arzamastsev, Andrey A. Botsyun, Svetlana Travin, Aleksey V. Yudin, Denis S. Samsonov, Alexander V. Stepanova, Alexandra V. Univ Arizona, Dept Geosci 2019-07-13 http://hdl.handle.net/10150/634481 https://doi.org/10.1029/2018tc005250 en eng AMER GEOPHYSICAL UNION Veselovskiy, R. V., Thomson, S. N., Arzamastsev, A. A., Botsyun, S., Travin, A. V., Yudin, D. S., et al. (2019). Thermochronology and exhumation history of the northeastern Fennoscandian Shield since 1.9 Ga:evidence from 40Ar/39Ar and apatite fission track data from the Kola Peninsula. Tectonics, 38, 2317–2337.https://doi.org/10.1029/2018TC005250 0278-7407 doi:10.1029/2018tc005250 http://hdl.handle.net/10150/634481 TECTONICS Copyright © 2019. American Geophysical Union. All Rights Reserved. 38 7 2317-2337 Geochemistry and Petrology Geophysics Fennoscandia Kola Peninsula Ar Ar dating apatite fission track thermal history tectonics Article 2019 ftunivarizona https://doi.org/10.1029/2018tc005250 https://doi.org/10.1029/2018TC005250 2020-06-14T08:17:54Z Results from thermochronological studies have multiple applications to various problems in tectonics and landform evolution. However, up to now a lack of thermochronological data from the northeastern Fennoscandian Shield has complicated the interpretation of tectonothermal evolution of the region. Here, we use both new and previously published multimineral Ar-40/Ar-39 data (amphibole, mica, and feldspar) on the various Precambrian magmatic and metamorphic complexes to reconstruct the thermal history of NE Fennoscandia within the Kola Peninsula area in the interval 1900-360 Ma. Using the apatite fission track method as well as a numerical model of the heating-cooling process of northeastern Fennoscandia's upper crust, we have reconstructed its thermal evolution for the interval 360-0 Ma. According to our model, since Lapland-Kola orogenesis (1930-1905 Ma) northeastern Fennoscandia experienced a quasi-monotonous cooling with the average rate of 0.15 degrees C/Myr, which is equal to an exhumation rate of 1-2 m/Myr. New apatite fission track data and time-temperature modeling reveal a hidden endogenous thermal event in the NE Fennoscandia that took place between 360 and 300 Ma. This we attribute to an elevated geothermal gradient due to Baltica's drift over the African large low shear-wave velocity province in the lowest mantle and/or thermal blanketing by insulating Devonian-Carboniferous sedimentary/volcanic cover. Our model is further supported by evidence of Late Devonian-Carboniferous rifting in the East and South-Western Barents Basin, as well as various 360-300 Ma magmatic events within SW Fennoscandia and the Baltic countries. Russian Science Foundation [16-17-10260]; Russian Government [220, 14.Z50.31.0017]; grant of President of Russian Federation [MD1116.2018.5]; State scientific program of IPGG; IPE RAS; state assignment project of Sobolev Institute of Geology and Mineralogy, Siberian Branch of Russian Academy of Sciences [0330-2016-0013] 6 month embargo; published online: 13 July 2019 This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu. Article in Journal/Newspaper Fennoscandia Fennoscandian kola peninsula Lapland The University of Arizona: UA Campus Repository Kola Peninsula Tectonics 38 7 2317 2337 |
institution |
Open Polar |
collection |
The University of Arizona: UA Campus Repository |
op_collection_id |
ftunivarizona |
language |
English |
topic |
Geochemistry and Petrology Geophysics Fennoscandia Kola Peninsula Ar Ar dating apatite fission track thermal history tectonics |
spellingShingle |
Geochemistry and Petrology Geophysics Fennoscandia Kola Peninsula Ar Ar dating apatite fission track thermal history tectonics Veselovskiy, Roman V. Thomson, Stuart N. Arzamastsev, Andrey A. Botsyun, Svetlana Travin, Aleksey V. Yudin, Denis S. Samsonov, Alexander V. Stepanova, Alexandra V. Thermochronology and Exhumation History of the Northeastern Fennoscandian Shield Since 1.9 Ga: Evidence From 40 Ar/ 39 Ar and Apatite Fission Track Data From the Kola Peninsula |
topic_facet |
Geochemistry and Petrology Geophysics Fennoscandia Kola Peninsula Ar Ar dating apatite fission track thermal history tectonics |
description |
Results from thermochronological studies have multiple applications to various problems in tectonics and landform evolution. However, up to now a lack of thermochronological data from the northeastern Fennoscandian Shield has complicated the interpretation of tectonothermal evolution of the region. Here, we use both new and previously published multimineral Ar-40/Ar-39 data (amphibole, mica, and feldspar) on the various Precambrian magmatic and metamorphic complexes to reconstruct the thermal history of NE Fennoscandia within the Kola Peninsula area in the interval 1900-360 Ma. Using the apatite fission track method as well as a numerical model of the heating-cooling process of northeastern Fennoscandia's upper crust, we have reconstructed its thermal evolution for the interval 360-0 Ma. According to our model, since Lapland-Kola orogenesis (1930-1905 Ma) northeastern Fennoscandia experienced a quasi-monotonous cooling with the average rate of 0.15 degrees C/Myr, which is equal to an exhumation rate of 1-2 m/Myr. New apatite fission track data and time-temperature modeling reveal a hidden endogenous thermal event in the NE Fennoscandia that took place between 360 and 300 Ma. This we attribute to an elevated geothermal gradient due to Baltica's drift over the African large low shear-wave velocity province in the lowest mantle and/or thermal blanketing by insulating Devonian-Carboniferous sedimentary/volcanic cover. Our model is further supported by evidence of Late Devonian-Carboniferous rifting in the East and South-Western Barents Basin, as well as various 360-300 Ma magmatic events within SW Fennoscandia and the Baltic countries. Russian Science Foundation [16-17-10260]; Russian Government [220, 14.Z50.31.0017]; grant of President of Russian Federation [MD1116.2018.5]; State scientific program of IPGG; IPE RAS; state assignment project of Sobolev Institute of Geology and Mineralogy, Siberian Branch of Russian Academy of Sciences [0330-2016-0013] 6 month embargo; published online: 13 July 2019 This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu. |
author2 |
Univ Arizona, Dept Geosci |
format |
Article in Journal/Newspaper |
author |
Veselovskiy, Roman V. Thomson, Stuart N. Arzamastsev, Andrey A. Botsyun, Svetlana Travin, Aleksey V. Yudin, Denis S. Samsonov, Alexander V. Stepanova, Alexandra V. |
author_facet |
Veselovskiy, Roman V. Thomson, Stuart N. Arzamastsev, Andrey A. Botsyun, Svetlana Travin, Aleksey V. Yudin, Denis S. Samsonov, Alexander V. Stepanova, Alexandra V. |
author_sort |
Veselovskiy, Roman V. |
title |
Thermochronology and Exhumation History of the Northeastern Fennoscandian Shield Since 1.9 Ga: Evidence From 40 Ar/ 39 Ar and Apatite Fission Track Data From the Kola Peninsula |
title_short |
Thermochronology and Exhumation History of the Northeastern Fennoscandian Shield Since 1.9 Ga: Evidence From 40 Ar/ 39 Ar and Apatite Fission Track Data From the Kola Peninsula |
title_full |
Thermochronology and Exhumation History of the Northeastern Fennoscandian Shield Since 1.9 Ga: Evidence From 40 Ar/ 39 Ar and Apatite Fission Track Data From the Kola Peninsula |
title_fullStr |
Thermochronology and Exhumation History of the Northeastern Fennoscandian Shield Since 1.9 Ga: Evidence From 40 Ar/ 39 Ar and Apatite Fission Track Data From the Kola Peninsula |
title_full_unstemmed |
Thermochronology and Exhumation History of the Northeastern Fennoscandian Shield Since 1.9 Ga: Evidence From 40 Ar/ 39 Ar and Apatite Fission Track Data From the Kola Peninsula |
title_sort |
thermochronology and exhumation history of the northeastern fennoscandian shield since 1.9 ga: evidence from 40 ar/ 39 ar and apatite fission track data from the kola peninsula |
publisher |
AMER GEOPHYSICAL UNION |
publishDate |
2019 |
url |
http://hdl.handle.net/10150/634481 https://doi.org/10.1029/2018tc005250 |
geographic |
Kola Peninsula |
geographic_facet |
Kola Peninsula |
genre |
Fennoscandia Fennoscandian kola peninsula Lapland |
genre_facet |
Fennoscandia Fennoscandian kola peninsula Lapland |
op_source |
38 7 2317-2337 |
op_relation |
Veselovskiy, R. V., Thomson, S. N., Arzamastsev, A. A., Botsyun, S., Travin, A. V., Yudin, D. S., et al. (2019). Thermochronology and exhumation history of the northeastern Fennoscandian Shield since 1.9 Ga:evidence from 40Ar/39Ar and apatite fission track data from the Kola Peninsula. Tectonics, 38, 2317–2337.https://doi.org/10.1029/2018TC005250 0278-7407 doi:10.1029/2018tc005250 http://hdl.handle.net/10150/634481 TECTONICS |
op_rights |
Copyright © 2019. American Geophysical Union. All Rights Reserved. |
op_doi |
https://doi.org/10.1029/2018tc005250 https://doi.org/10.1029/2018TC005250 |
container_title |
Tectonics |
container_volume |
38 |
container_issue |
7 |
container_start_page |
2317 |
op_container_end_page |
2337 |
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1765996759718297600 |