Russian Journal of Earth Sciences Russian Journal of Earth Sciences Russian Journal of Earth Sciences 1681-1208 47095 ОРИГИНАЛЬНЫЕ СТАТЬИ ORIGINAL ARTICLES ОРИГИНАЛЬНЫЕ СТАТЬИ Geologic complexes of the southern marginal part of the Siberian Craton as indicators of the Neoproterozoic supercontinent evolution Geologic complexes of the southern marginal part of the Siberian Craton as indicators of the Neoproterozoic supercontinent evolution Sklyarov E V Sklyarov E V Gladkochub D P Gladkochub D P Mazukabzov A M Mazukabzov A M Donskaya T V Donskaya T V Stanevich A M Stanevich A M Institute of the Earth's Crust, Siberian Division of RAS, Irkutsk, Russia ru Institute of the Earth's Crust, Siberian Division of RAS, Irkutsk, Russia ru Institute of the Earth's Crust, Siberian Division of RAS, Irkutsk, Russia ru Institute of the Earth's Crust, Siberian Division of RAS, Irkutsk, Russia ru Institute of the Earth's Crust, Siberian Division of RAS, Irkutsk, Russia ru Institute of the Earth's Crust, Siberian Division of RAS, Irkutsk, Russia ru Institute of the Earth's Crust, Siberian Division of RAS, Irkutsk, Russia ru Institute of the Earth's Crust, Siberian Division of RAS, Irkutsk, Russia ru Institute of the Earth's Crust, Siberian Division of RAS, Irkutsk, Russia ru Institute of the Earth's Crust, Siberian Division of RAS, Irkutsk, Russia ru 5 5 347 359 10 11 2021 https://rjes.ru/en/nauka/article/47095/view

The aim of this paper is to discuss the Late Precambrian rock complexes in the southern margin of the Siberian Craton, associated with the extension. The analysis of the data available suggests two episodes of intracontinental breakup which resulted in the opening of oceanic spaces 1300-900 and 850-550 million years. The time sequence of "volcanogenic terrigenous rocks of rifting origin basic dike swarms carbonate-terrigenous rock sequences ophiolites and island-arc rocks'' reflects the consecutive change of geodynamic environments in the marginal part of the craton. The stage of intracontinental rifting was replaced by the stage of advanced rifting, which preceded the continental breakup and the formation of the oceanic crust. Next followed two stages of oceanic crust evolution: the passive stage sedimentary complexes of the passive margins and the active stage island arcs, backarc seas, and the like. Different versions are discussed for the manifestation of extension processes in the southwestern and southeastern segments of the Siberian Craton in connection with the breakup of the Rodinia supercontinent.

The aim of this paper is to discuss the Late Precambrian rock complexes in the southern margin of the Siberian Craton, associated with the extension. The analysis of the data available suggests two episodes of intracontinental breakup which resulted in the opening of oceanic spaces 1300-900 and 850-550 million years. The time sequence of "volcanogenic terrigenous rocks of rifting origin basic dike swarms carbonate-terrigenous rock sequences ophiolites and island-arc rocks'' reflects the consecutive change of geodynamic environments in the marginal part of the craton. The stage of intracontinental rifting was replaced by the stage of advanced rifting, which preceded the continental breakup and the formation of the oceanic crust. Next followed two stages of oceanic crust evolution: the passive stage sedimentary complexes of the passive margins and the active stage island arcs, backarc seas, and the like. Different versions are discussed for the manifestation of extension processes in the southwestern and southeastern segments of the Siberian Craton in connection with the breakup of the Rodinia supercontinent.

 Siberian Craton geologic complexes Neoproterozoic supercontinent intracontinental breakup rifting. Siberian Craton geologic complexes Neoproterozoic supercontinent intracontinental breakup rifting.

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