Geodynamic Model of the Neoproterozoic Evolution of the Yenisei Paleosubduction Zone (Western Margin of the Siberian Craton), Russia.
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| Title: | Geodynamic Model of the Neoproterozoic Evolution of the Yenisei Paleosubduction Zone (Western Margin of the Siberian Craton), Russia. |
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| Authors: | Kozlov, P. S.1 (AUTHOR) kozlov@igg.uran.ru, Filippov, Yu. F.2 (AUTHOR), Likhanov, I. I.3 (AUTHOR), Nozhkin, A. D.3 (AUTHOR) |
| Source: | Geotectonics. Jan2020, Vol. 54 Issue 1, p54-67. 14p. |
| Subject Terms: | *Suture zones (Structural geology), *Island arcs, *Oceanic crust, *Riparian areas, *Zoning, *Ophiolites |
| Geographic Terms: | Russia |
| Abstract: | The article proposes a model of collisional and accretionary events of the Neoproterozoic at the western margin of the Siberian Craton based on the results of geological, petrological, and geochronological studies of Precambrian complexes of the Yenisei Ridge and comprehensive geophysical data. Mineralogical and petrological evidence of paleosubduction is presented, represented by relicts of glaucophane-bearing high-pressure mineral assemblages in metabasites (630‒620 Ma) within the tectonic mélange of the suture zone and by metamorphosed ophiolites and island arc complexes of the Isakovka and Predivinsk terranes (700–600 Ma) of the Sayan–Yenisei accretionary belt. The proposed geodynamic evolutionary model of the Yenisei paleosubduction zone includes reconstructions for time intervals of 740‒700, 640‒600, 580‒540 Ma, during which a suture zone was formed as a result of collision of the Kas–Turukhansk microcontinent with the Siberian Craton. Tectonized fragments of the suture partially outcrop on the surface on the right bank of the Yenisei River. The bulk of the deformed and metamorphosed oceanic crust is buried beneath the Ediacaran and Phanerozoic sedimentary cover in the eastern part of the Kas–Turukhansk microcontinent, which is traceable by geophysical data. The history of the region's geological development in the Late Meso‒Neoproterozoic correlates with synchronous endogenic events along the Arctic margin of the Nuna and Rodinia paleocontinents, which confirms the spatial proximity of the Siberian and North Atlantic cratons (Laurentia and Baltica) in a wide time range. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 143113718 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Geodynamic Model of the Neoproterozoic Evolution of the Yenisei Paleosubduction Zone (Western Margin of the Siberian Craton), Russia. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Kozlov%2C+P%2E+S%2E%22">Kozlov, P. S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> kozlov@igg.uran.ru</i><br /><searchLink fieldCode="AR" term="%22Filippov%2C+Yu%2E+F%2E%22">Filippov, Yu. F.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Likhanov%2C+I%2E+I%2E%22">Likhanov, I. I.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Nozhkin%2C+A%2E+D%2E%22">Nozhkin, A. D.</searchLink><relatesTo>3</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Geotectonics%22">Geotectonics</searchLink>. Jan2020, Vol. 54 Issue 1, p54-67. 14p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Suture+zones+%28Structural+geology%29%22">Suture zones (Structural geology)</searchLink><br />*<searchLink fieldCode="DE" term="%22Island+arcs%22">Island arcs</searchLink><br />*<searchLink fieldCode="DE" term="%22Oceanic+crust%22">Oceanic crust</searchLink><br />*<searchLink fieldCode="DE" term="%22Riparian+areas%22">Riparian areas</searchLink><br />*<searchLink fieldCode="DE" term="%22Zoning%22">Zoning</searchLink><br />*<searchLink fieldCode="DE" term="%22Ophiolites%22">Ophiolites</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Russia%22">Russia</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The article proposes a model of collisional and accretionary events of the Neoproterozoic at the western margin of the Siberian Craton based on the results of geological, petrological, and geochronological studies of Precambrian complexes of the Yenisei Ridge and comprehensive geophysical data. Mineralogical and petrological evidence of paleosubduction is presented, represented by relicts of glaucophane-bearing high-pressure mineral assemblages in metabasites (630‒620 Ma) within the tectonic mélange of the suture zone and by metamorphosed ophiolites and island arc complexes of the Isakovka and Predivinsk terranes (700–600 Ma) of the Sayan–Yenisei accretionary belt. The proposed geodynamic evolutionary model of the Yenisei paleosubduction zone includes reconstructions for time intervals of 740‒700, 640‒600, 580‒540 Ma, during which a suture zone was formed as a result of collision of the Kas–Turukhansk microcontinent with the Siberian Craton. Tectonized fragments of the suture partially outcrop on the surface on the right bank of the Yenisei River. The bulk of the deformed and metamorphosed oceanic crust is buried beneath the Ediacaran and Phanerozoic sedimentary cover in the eastern part of the Kas–Turukhansk microcontinent, which is traceable by geophysical data. The history of the region's geological development in the Late Meso‒Neoproterozoic correlates with synchronous endogenic events along the Arctic margin of the Nuna and Rodinia paleocontinents, which confirms the spatial proximity of the Siberian and North Atlantic cratons (Laurentia and Baltica) in a wide time range. [ABSTRACT FROM AUTHOR] |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=143113718 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1134/S0016852120010069 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 54 Subjects: – SubjectFull: Suture zones (Structural geology) Type: general – SubjectFull: Island arcs Type: general – SubjectFull: Oceanic crust Type: general – SubjectFull: Riparian areas Type: general – SubjectFull: Zoning Type: general – SubjectFull: Ophiolites Type: general – SubjectFull: Russia Type: general Titles: – TitleFull: Geodynamic Model of the Neoproterozoic Evolution of the Yenisei Paleosubduction Zone (Western Margin of the Siberian Craton), Russia. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Kozlov, P. S. – PersonEntity: Name: NameFull: Filippov, Yu. F. – PersonEntity: Name: NameFull: Likhanov, I. I. – PersonEntity: Name: NameFull: Nozhkin, A. D. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 00168521 Numbering: – Type: volume Value: 54 – Type: issue Value: 1 Titles: – TitleFull: Geotectonics Type: main |
| ResultId | 1 |
