Rift–Related Sediments of the Passive Continental Margin of the Paleo-Asian Ocean (Baikal Segment)
Doklady Earth Sciences(2018)
Abstract
The geological position, composition, and age of detrital zircons of sedimentary deposits of the Nugan Formation of the Western Baikal region underlying the Golousta Formation of the Baikal series of Ediacaran age have been studied. The formation of both stratigraphic units due to the same sources of detrital material, located within the southern flank of the Siberian Craton, has been proved. The deposits of the Nugan Formation have been demonstrated to mark the rifting stage of the formation of the passive margin of the Paleo-Asiatic Ocean: their accumulation occurred in the Late Cryogenian during the interval 720–640 Ma.
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Key words
passive continental margin,baikal segment,sediments,ocean,paleo-asian
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