Detrital Zircon Geochronology of the Volyn-Orsha Sedimentary Basin in Western Ukraine: Implications for the Meso-Neoproterozoic History of Baltica and Possible Link to Amazonia and the Grenvillian—Sveconorwegian—Sunsas Orogenic Belts
We used LA-ICP-MS U-Pb data for detrital zircon to constrain the Maximum Depositional Age (MDA) and provenance of clastic sedimentary rocks of the Volyn-Orsha sedimentary basin, which filled an elongated (~625 × 250 km) depression in SW Baltica and attained ~900 m in thickness. Eighty-six zircons ou...
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2023-05-01
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author | Leonid Shumlyanskyy Andrey Bekker Iryna Tarasko Ion Francovschi Simon A. Wilde Viktor Melnychuk |
author_facet | Leonid Shumlyanskyy Andrey Bekker Iryna Tarasko Ion Francovschi Simon A. Wilde Viktor Melnychuk |
author_sort | Leonid Shumlyanskyy |
collection | DOAJ |
description | We used LA-ICP-MS U-Pb data for detrital zircon to constrain the Maximum Depositional Age (MDA) and provenance of clastic sedimentary rocks of the Volyn-Orsha sedimentary basin, which filled an elongated (~625 × 250 km) depression in SW Baltica and attained ~900 m in thickness. Eighty-six zircons out of one hundred and three yielded concordant dates, with most of them (86%) falling in the time interval between 1655 ± 3 and 1044 ± 16 Ma and clustering in two peaks at ca. 1630 and 1230 Ma. The remaining zircons yielded dates older than 1800 Ma. The MDA is defined by a tight group of three zircons with a weighted mean age of 1079 ± 8 Ma. This age corresponds to the time of a ~90° clockwise rotation of Baltica and the formation of the Grenvillian—Sveconorwegian—Sunsas orogenic belts. Subsidence was facilitated by the presence of eclogites derived from subducted oceanic crust. The sediments of the Orsha sub-basin in the northeastern part of the basin were derived from the local crystalline basement, whereas the sediments in the Volyn sub-basin, extending to the margin of Baltica, were transported from the orogen between Laurentia, Baltica and Amazonia. |
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spelling | doaj.art-30c20f1f85c142ff81d211e0ef28daa32023-11-18T01:31:11ZengMDPI AGGeosciences2076-32632023-05-0113515210.3390/geosciences13050152Detrital Zircon Geochronology of the Volyn-Orsha Sedimentary Basin in Western Ukraine: Implications for the Meso-Neoproterozoic History of Baltica and Possible Link to Amazonia and the Grenvillian—Sveconorwegian—Sunsas Orogenic BeltsLeonid Shumlyanskyy0Andrey Bekker1Iryna Tarasko2Ion Francovschi3Simon A. Wilde4Viktor Melnychuk5School of Earth and Planetary Sciences, Curtin University, GPO Box U1987, Perth, WA 6845, AustraliaDepartment of Earth & Planetary Sciences, University of California, Riverside, CA 92521, USARivne Complex Geological Enterprise of the State Ukrainian Geological Company, Stelmakha 11, 33000 Rivne, UkraineFaculty of Geology and Geophysics, University of Bucharest, 010041 Bucharest, RomaniaSchool of Earth and Planetary Sciences, Curtin University, GPO Box U1987, Perth, WA 6845, AustraliaInstitute of Water and Environmental Engineering, National University of Water and Environmental Engineering, 33028 Rivne, UkraineWe used LA-ICP-MS U-Pb data for detrital zircon to constrain the Maximum Depositional Age (MDA) and provenance of clastic sedimentary rocks of the Volyn-Orsha sedimentary basin, which filled an elongated (~625 × 250 km) depression in SW Baltica and attained ~900 m in thickness. Eighty-six zircons out of one hundred and three yielded concordant dates, with most of them (86%) falling in the time interval between 1655 ± 3 and 1044 ± 16 Ma and clustering in two peaks at ca. 1630 and 1230 Ma. The remaining zircons yielded dates older than 1800 Ma. The MDA is defined by a tight group of three zircons with a weighted mean age of 1079 ± 8 Ma. This age corresponds to the time of a ~90° clockwise rotation of Baltica and the formation of the Grenvillian—Sveconorwegian—Sunsas orogenic belts. Subsidence was facilitated by the presence of eclogites derived from subducted oceanic crust. The sediments of the Orsha sub-basin in the northeastern part of the basin were derived from the local crystalline basement, whereas the sediments in the Volyn sub-basin, extending to the margin of Baltica, were transported from the orogen between Laurentia, Baltica and Amazonia.https://www.mdpi.com/2076-3263/13/5/152MesoproterozoicNeoproterozoicBalticaAmazoniadetrital zirconVolyn-Orsha basin |
spellingShingle | Leonid Shumlyanskyy Andrey Bekker Iryna Tarasko Ion Francovschi Simon A. Wilde Viktor Melnychuk Detrital Zircon Geochronology of the Volyn-Orsha Sedimentary Basin in Western Ukraine: Implications for the Meso-Neoproterozoic History of Baltica and Possible Link to Amazonia and the Grenvillian—Sveconorwegian—Sunsas Orogenic Belts Geosciences Mesoproterozoic Neoproterozoic Baltica Amazonia detrital zircon Volyn-Orsha basin |
title | Detrital Zircon Geochronology of the Volyn-Orsha Sedimentary Basin in Western Ukraine: Implications for the Meso-Neoproterozoic History of Baltica and Possible Link to Amazonia and the Grenvillian—Sveconorwegian—Sunsas Orogenic Belts |
title_full | Detrital Zircon Geochronology of the Volyn-Orsha Sedimentary Basin in Western Ukraine: Implications for the Meso-Neoproterozoic History of Baltica and Possible Link to Amazonia and the Grenvillian—Sveconorwegian—Sunsas Orogenic Belts |
title_fullStr | Detrital Zircon Geochronology of the Volyn-Orsha Sedimentary Basin in Western Ukraine: Implications for the Meso-Neoproterozoic History of Baltica and Possible Link to Amazonia and the Grenvillian—Sveconorwegian—Sunsas Orogenic Belts |
title_full_unstemmed | Detrital Zircon Geochronology of the Volyn-Orsha Sedimentary Basin in Western Ukraine: Implications for the Meso-Neoproterozoic History of Baltica and Possible Link to Amazonia and the Grenvillian—Sveconorwegian—Sunsas Orogenic Belts |
title_short | Detrital Zircon Geochronology of the Volyn-Orsha Sedimentary Basin in Western Ukraine: Implications for the Meso-Neoproterozoic History of Baltica and Possible Link to Amazonia and the Grenvillian—Sveconorwegian—Sunsas Orogenic Belts |
title_sort | detrital zircon geochronology of the volyn orsha sedimentary basin in western ukraine implications for the meso neoproterozoic history of baltica and possible link to amazonia and the grenvillian sveconorwegian sunsas orogenic belts |
topic | Mesoproterozoic Neoproterozoic Baltica Amazonia detrital zircon Volyn-Orsha basin |
url | https://www.mdpi.com/2076-3263/13/5/152 |
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