GRANITES OF THE NORTHERN TIMAN – PROBABLE INDICATORS OF NEOPROTEROZOIC STAGES OF RODINIA BREAKUP
The Northern Timan is an uplifted block of Late Precambrian basement of the Timan Ridge, where Neoproterozoic sedimentary-metamorphic rocks of the Barmin Group are cut by intrusive rocks of different composition and all unconformably overlain by Lower Silurian limestone. To determine the age of gran...
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| Format: | Article |
| Language: | English |
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Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust
2020-06-01
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| Series: | Геодинамика и тектонофизика |
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| Online Access: | https://www.gt-crust.ru/jour/article/view/1028 |
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| author | V. L. Andreichev A. A. Soboleva O. V. Udoratina Yu. L. Ronkin M. A. Coble E. L. Miller |
| author_facet | V. L. Andreichev A. A. Soboleva O. V. Udoratina Yu. L. Ronkin M. A. Coble E. L. Miller |
| author_sort | V. L. Andreichev |
| collection | DOAJ |
| description | The Northern Timan is an uplifted block of Late Precambrian basement of the Timan Ridge, where Neoproterozoic sedimentary-metamorphic rocks of the Barmin Group are cut by intrusive rocks of different composition and all unconformably overlain by Lower Silurian limestone. To determine the age of granites, U-Pb dating of zircons was carried out using secondary ion mass spectrometry (SIMS). Two episodes of Neoproterozoic granite magmatism were established. Granite rocks of the Bolshoy Kameshek (613 ± 6 Ma) and Cape Bolshoy Rumyanichny (614 ± 11 Ma) plutons are interpreted to be associated with the formation of Central Iapetus Magmatic Province and record the Ediacaran stage of Rodinia breakup. The granites of the Sopki Kamennyie pluton (723‒727 Ma) formed in Cryogenian time and are assumed to represent an earlier episode of Rodinia breakup. Their ages correlate with the age of the Franklin LIP that existed in Northern Laurentia and is believed to have spread to South Siberia. |
| first_indexed | 2024-04-09T20:28:29Z |
| format | Article |
| id | doaj.art-29643ca9617d449dad456b658c0665b3 |
| institution | Directory Open Access Journal |
| issn | 2078-502X |
| language | English |
| last_indexed | 2025-03-14T08:29:42Z |
| publishDate | 2020-06-01 |
| publisher | Russian Academy of Sciences, Siberian Branch, Institute of the Earth's crust |
| record_format | Article |
| series | Геодинамика и тектонофизика |
| spelling | doaj.art-29643ca9617d449dad456b658c0665b32025-03-02T13:02:49ZengRussian Academy of Sciences, Siberian Branch, Institute of the Earth's crustГеодинамика и тектонофизика2078-502X2020-06-0111220121810.5800/GT-2020-11-2-0470468GRANITES OF THE NORTHERN TIMAN – PROBABLE INDICATORS OF NEOPROTEROZOIC STAGES OF RODINIA BREAKUPV. L. Andreichev0A. A. Soboleva1O. V. Udoratina2Yu. L. Ronkin3M. A. Coble4E. L. Miller5N.P. Yushkin Institute of Geology of Komi Science Center, Ural Branch of RASN.P. Yushkin Institute of Geology of Komi Science Center, Ural Branch of RASN.P. Yushkin Institute of Geology of Komi Science Center, Ural Branch of RASA.N. Zavaritsky Institute of Geology and Geochemistry, Ural Branch of RASStanford UniversityStanford UniversityThe Northern Timan is an uplifted block of Late Precambrian basement of the Timan Ridge, where Neoproterozoic sedimentary-metamorphic rocks of the Barmin Group are cut by intrusive rocks of different composition and all unconformably overlain by Lower Silurian limestone. To determine the age of granites, U-Pb dating of zircons was carried out using secondary ion mass spectrometry (SIMS). Two episodes of Neoproterozoic granite magmatism were established. Granite rocks of the Bolshoy Kameshek (613 ± 6 Ma) and Cape Bolshoy Rumyanichny (614 ± 11 Ma) plutons are interpreted to be associated with the formation of Central Iapetus Magmatic Province and record the Ediacaran stage of Rodinia breakup. The granites of the Sopki Kamennyie pluton (723‒727 Ma) formed in Cryogenian time and are assumed to represent an earlier episode of Rodinia breakup. Their ages correlate with the age of the Franklin LIP that existed in Northern Laurentia and is believed to have spread to South Siberia.https://www.gt-crust.ru/jour/article/view/1028granitesnorthern timanzirconu-pb isotopic agerodinia |
| spellingShingle | V. L. Andreichev A. A. Soboleva O. V. Udoratina Yu. L. Ronkin M. A. Coble E. L. Miller GRANITES OF THE NORTHERN TIMAN – PROBABLE INDICATORS OF NEOPROTEROZOIC STAGES OF RODINIA BREAKUP Геодинамика и тектонофизика granites northern timan zircon u-pb isotopic age rodinia |
| title | GRANITES OF THE NORTHERN TIMAN – PROBABLE INDICATORS OF NEOPROTEROZOIC STAGES OF RODINIA BREAKUP |
| title_full | GRANITES OF THE NORTHERN TIMAN – PROBABLE INDICATORS OF NEOPROTEROZOIC STAGES OF RODINIA BREAKUP |
| title_fullStr | GRANITES OF THE NORTHERN TIMAN – PROBABLE INDICATORS OF NEOPROTEROZOIC STAGES OF RODINIA BREAKUP |
| title_full_unstemmed | GRANITES OF THE NORTHERN TIMAN – PROBABLE INDICATORS OF NEOPROTEROZOIC STAGES OF RODINIA BREAKUP |
| title_short | GRANITES OF THE NORTHERN TIMAN – PROBABLE INDICATORS OF NEOPROTEROZOIC STAGES OF RODINIA BREAKUP |
| title_sort | granites of the northern timan probable indicators of neoproterozoic stages of rodinia breakup |
| topic | granites northern timan zircon u-pb isotopic age rodinia |
| url | https://www.gt-crust.ru/jour/article/view/1028 |
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